Games like Grey Goo on Steam

For those who prefer not to search, lists of the most played, top deals and best free games like Grey Goo are available at the bottom of the page.

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XCOM: Enemy Unknown The XCOM: Enemy Unknown - Slingshot Pack is Now Available!

Similarity 49%
Price -98% 0.47€
Rating 9.2
Release 11 Oct 2012
Codex of Victory In this sci-fi turn-based strategy with real-time base-building elements, you’ll be defending human territories against the transhuman Augments. Expand your HQ, and manufacture and upgrade an army of advanced drones to wage interplanetary war for Humanity!

Similarity 49%
Price -97% 0.59€
Rating 6.6
Release 16 Mar 2017
Stellaris Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities.

Similarity 49%
Price -85% 6.07€
Rating 8.5
Release 09 May 2016
NEBULOUS: Fleet Command Take command of your hand-tailored fleet of space warships and use realistic radar, electronic warfare, advanced movement controls in 3D space, and precision targeting to outmaneuver and outwit your opponents in a simulation-heavy tactical space game like no other.

Similarity 49%
Price -76% 7.47€
Rating 8.0
Release 11 Feb 2022
Dungeons 3 At last, the Dungeon Lord has successfully united the forces of evil and established his dark empire. Time for the next step in his most diabolical quest: expansion!

Similarity 48%
Price -97% 0.93€
Rating 9.2
Release 13 Oct 2017
Stalingrad Stalingrad is a real-time strategy title that places gamers in the middle of the most dramatic periods of World War II, covering major events from June 1942 till January 1943.

Similarity 48%
Price -88% 0.60€
Rating 8.2
Release 25 Mar 2015
8-Bit Armies 8-Bit Armies is a retro Real-Time Strategy game. With a colorful, blocky voxel art style, 8-Bit Armies is Petroglyph's most fast-paced, friendly, and accessible RTS game to date. Featuring a campaign of 25 single-player missions, 12 co-op missions, multiplayer and skirmish modes.

Similarity 48%
Price -84% 2.42€
Rating 7.9
Release 22 Apr 2016
Stronghold Crusader 2 Stronghold Crusader 2 is the long awaited sequel to the original castle sim. After 12 years Stronghold returns to the desert with a new 3D engine and powerful Havok Physics. Crusader 2 recaptures the original game’s addictive, fast-paced gameplay and authentic castle simulation.

Similarity 48%
Price -98% 0.78€
Rating 7.1
Release 22 Sep 2014
Ancestors Legacy Ancestors Legacy is a squad-based real time strategy with a strong focus on tactics. Inspired by medieval European history, it brings to life four different nations and their conflicts, usually solved by war.

Similarity 48%
Price -95% 1.85€
Rating 7.7
Release 22 May 2018
Act of War: Direct Action Tomorrow's War Is NOW Ripped from today's headlines, Act of War: Direct Action™ is a frightening tale of suspense, international intrigue and geopolitical military conflict. This real-time strategy experience puts you squarely in control of counterterrorist forces and delivers a first look at tomorrow's war.

Similarity 48%
Price -77% 0.69€
Rating 8.4
Release 12 Mar 2008
Steel Division 2 Steel Division 2 is a historically-accurate WW2 real-time strategy game set on the Eastern Front. Features 1:1-scale turn-based army management and real-time tactical battles with thousands of men at your order.

Similarity 47%
Price -66% 13.85€
Rating 7.8
Release 20 Jun 2019
Total War: PHARAOH In Total War: PHARAOH, the newest entry in the award-winning grand strategy series, immerse yourself in ancient Egypt at the zenith of its power and experience the dramatic events that threaten its destruction.

Similarity 47%
Price -91% 3.94€
Rating 6.3
Release 11 Oct 2023
Sword of the Stars: Complete Collection Sword of the Stars: Complete Collection is the original Sword of the Stars games and the three expansions Born of Blood, A Murder of Crows and Argos Naval Yard. It is the year 2405, and human scientists have discovered a new technology that allows travel from star to star at speeds faster than light.

Similarity 47%
Price -95% 0.51€
Rating 8.2
Release 04 Jun 2010
Terraforming Mars The taming of the Red Planet has begun! Corporations are competing to transform Mars into a habitable planet by spending vast resources and using innovative technology to raise temperature, create a breathable atmosphere, and make oceans of water.

Similarity 47%
Price -96% 0.81€
Rating 7.0
Release 17 Oct 2018
Battle Worlds: Kronos Battle Worlds: Kronos is a classic turn-based strategy game in the tradition of Battle Isle, Advance Wars and Panzer General. Have you ever wondered what games like that would look like today? Well, we did. As a result, we decided to develope Battle Worlds: Kronos.

Similarity 47%
Price -98% 0.47€
Rating 6.4
Release 04 Nov 2013
Stellar Warfare Space RTS with base building and ship customization. Personal passion project. More than 200 available ships, weapons and modules to design your fleet with. Contains a small campaign, several single and multiplayer game modes and a coop game mode. Also contains Wave defense!

Similarity 46%
Price -81% 3.94€
Rating 8.0
Release 04 Aug 2021
MarZ: Tactical Base Defense Build your defense base to fight back the undead hordes of Mars and secure the future of the red planet. MarZ is a game of strategy and tactical defense where you must carefully manage your crew and resources as you try to uncover the terrible secrets of the undead.

Similarity 46%
Price -76% 4.87€
Rating 7.5
Release 04 Apr 2019
War, the Game 'War, the Game' is a RTS for pc in realistic present day setting.The controls are intuitive, the game rules are simple and transparent.The game focuses on strategy and the use of ones brain to complete the scenarios.The map is a spherical version of earth. That's new.

Similarity 46%
Price -85% 1.07€
Rating 6.5
Release 12 Jan 2015
Warlords Battlecry III Warlords Battlecry III is the next installment in the award-winning Warlords Battlecry series. Builds upon the famous features of previous Battlecry titles such as the outstanding AI, innovative gameplay and hero system that has made this brand renowned throughout the RTS genre.

Similarity 46%
Price -26% 7.49€
Rating 7.9
Release 22 Jan 2016
Battlezone: Combat Commander Battlezone: Combat Commander remasters FPS-RTS classic Battlezone II with slick new visuals, brand new achievements, Steam Workshop support and much more! The solar system is at war. Take command.

Similarity 46%
Price -85% 3.00€
Rating 8.5
Release 01 Mar 2018
Total War: WARHAMMER II Strategy gaming perfected. A breath-taking campaign of exploration, expansion and conquest across a fantasy world. Turn-based civilisation management and real-time epic strategy battles with thousands of troops and monsters at your command.

Similarity 46%
Price -88% 7.33€
Rating 9.1
Release 28 Sep 2017
KnightShift Do you like Real Time Strategy? or are Role Playing Games your preference…Why not try both genres in one? … or even both separately? …In one game: KnightShift!In a mystical world beyond fantasy and imagination, where corruption and disaster go hand in hand, not all is as it seems.

Similarity 46%
Price -94% 0.54€
Rating 6.6
Release 27 Sep 2013
Total War: SHOGUN 2 Total War: SHOGUN 2 is the perfect mix of real-time and turn-based strategy gaming for newcomers and veterans alike.

Similarity 46%
Price -90% 3.08€
Rating 8.9
Release 14 Mar 2011
X-COM: UFO Defense You are in control of X-COM: an organization formed by the world's governments to fight the ever-increasing alien menace.

Similarity 45%
Price -91% 0.48€
Rating 9.1
Release 04 Sep 2008

Most played games like Grey Goo on Steam

Take a look at the top games like Grey Goo that are currently attracting the largest player bases on the Steam platform, as of June 16th 2025.

1. Age of Empires II: Definitive Edition

Similarity 62% 42 Civilizations, 229 Campaign Missions, Singleplayer, Co-Op, Multiplayer, In-Game Editor, Mods, Cross-play...It is good to be the king. Age of Empires II: Definitive Edition is a strategy, rts and city builder game developed by Forgotten Empires, Tantalus Media, Wicked Witch, World's Edge and CaptureAge and published by Xbox Game Studios. Released on November 14th 2019 has received 162,462 reviews of which 154,061 were positive and 8,401 were negative resulting in an impressive rating of 9.4 out of 10. The game has hit the top spot as the #1 most played game like Grey Goo, thanks to its 15,584 peak concurrent players over the last day.
9.4
154,061
8,401

15,584
players

2. Stellaris

Similarity 49% Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities. Stellaris is a space, grand strategy and strategy game developed by Paradox Development Studio and published by Paradox Interactive. Released on May 09th 2016 has received 185,433 reviews of which 159,527 were positive and 25,906 were negative resulting in a rating of 8.5 out of 10. While seeing 13,555 players online at once in the last 24 hours, this game is currently ranked #2 among games like Grey Goo based on player count.
8.5
159,527
25,906

13,555
players

3. Bloons TD 6

Similarity 41% The Bloons are back and better than ever! Get ready for a massive 3D tower defense game designed to give you hours and hours of the best strategy gaming available. Bloons TD 6 is a tower defense, strategy and multiplayer game developed and published by Ninja Kiwi. Released on December 17th 2018 has received 353,960 reviews of which 344,269 were positive and 9,691 were negative resulting in an impressive rating of 9.6 out of 10. While seeing 9,200 players online at once in the last 24 hours, this game is currently ranked #3 among games like Grey Goo based on player count.
9.6
344,269
9,691

9,200
players

4. Age of Empires IV: Anniversary Edition

Similarity 65% Celebrating its first year of delighting millions of global players, the award-winning and best-selling strategy franchise continues with Age of Empires IV: Anniversary Edition, putting you at the center of even more epic historical battles that shaped the world. Age of Empires IV: Anniversary Edition is a strategy, rts and base-building game developed by Relic Entertainment, Forgotten Empires, Climax Studios and World's Edge and published by Xbox Game Studios. Released on October 28th 2021 has received 80,870 reviews of which 69,559 were positive and 11,311 were negative resulting in a rating of 8.5 out of 10. With 6,242 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Grey Goo.
8.5
69,559
11,311

6,242
players

5. Age of Empires III: Definitive Edition

Similarity 64% Age of Empires III: Definitive Edition offers players a trial of this historical single & multiplayer RTS experience. *Note: To unlock all features of the game please see the “Base Game” product. Age of Empires III: Definitive Edition is a strategy, base-building and rts game developed by World's Edge, Tantalus Media and Forgotten Empires and published by Xbox Game Studios. Released on October 15th 2020 has received 48,342 reviews of which 40,941 were positive and 7,401 were negative resulting in a rating of 8.3 out of 10. With 3,597 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Grey Goo.
8.3
40,941
7,401

3,597
players

6. Anno 1800

Similarity 40% Anno 1800™ – Lead the Industrial Revolution! Welcome to the dawn of the Industrial Age. The path you choose will define your world. Are you an innovator or an exploiter? A conqueror or a liberator? How the world remembers your name is up to you. Anno 1800 is a city builder, strategy and simulation game developed by Ubisoft Mainz and published by Ubisoft. Released on April 16th 2019 has received 25,091 reviews of which 20,368 were positive and 4,723 were negative resulting in a rating of 8.0 out of 10. With 3,157 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Grey Goo.
8.0
20,368
4,723

3,157
players

7. STAR WARS™ Empire at War - Gold Pack

Similarity 72% Command or corrupt an entire galaxy in the definitive Star Wars strategy collection. It is a time of galactic civil war. Will you take up the reins of the Rebellion, assume control of the Empire, or rule the Star Wars Underworld? STAR WARS™ Empire at War - Gold Pack is a strategy, rts and space game developed by Petroglyph and published by LucasArts, Lucasfilm and Disney. Released on May 25th 2010 has received 39,435 reviews of which 38,503 were positive and 932 were negative resulting in an impressive rating of 9.6 out of 10. With 2,985 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Grey Goo.
9.6
38,503
932

2,985
players

8. Age of Empires II (Retired)

Similarity 59% Age of Empires II has been re-imagined in high definition. With the release of Age of Empires II: Definitive Edition, this product will not be updated further. Age of Empires II (Retired) is a strategy, rts and medieval game developed by SkyBox Labs, Hidden Path Entertainment, Ensemble Studios and Forgotten Empires and published by Xbox Game Studios. Released on April 09th 2013 has received 101,351 reviews of which 97,083 were positive and 4,268 were negative resulting in an impressive rating of 9.4 out of 10. With 2,630 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Grey Goo.
9.4
97,083
4,268

2,630
players

9. Age of Mythology: Retold

Similarity 44% From the creators of the award-winning Age of Empires franchise, Age of Mythology: Retold goes beyond history to a mythical age where gods, monsters, and humans collide. Age of Mythology: Retold is a strategy, 3d and rts game developed by World's Edge, Forgotten Empires, Tantalus Media, CaptureAge and Virtuos Games and published by Xbox Game Studios. Released on September 04th 2024 has received 16,708 reviews of which 15,043 were positive and 1,665 were negative resulting in a rating of 8.8 out of 10. With 2,425 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Grey Goo.
8.8
15,043
1,665

2,425
players

10. Total War: SHOGUN 2

Similarity 46% Total War: SHOGUN 2 is the perfect mix of real-time and turn-based strategy gaming for newcomers and veterans alike. Total War: SHOGUN 2 is a strategy, historical and turn-based strategy game developed by Creative Assembly and Feral Interactive (Linux) and published by Feral interactive (Mac), Feral Interactive (Linux) and SEGA. Released on March 14th 2011 has received 24,952 reviews of which 22,620 were positive and 2,332 were negative resulting in a rating of 8.9 out of 10. With 2,117 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Grey Goo.
8.9
22,620
2,332

2,117
players

Best deals on games like Grey Goo on Steam

Discover fantastic savings with the best discounts on a variety of games like Grey Goo available on Steam right now, updated on June 16th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Grey Goo.

1. Starship Troopers: Terran Command

Similarity 56% Lead the Mobile Infantry in this RTS game set in the Starship Troopers film universe. Balance your army composition with a diverse set of unit types, overcome line-of-sight and line-of-fire challenges through tactical positioning, and use special abilities to smash the Arachnid hordes! Starship Troopers: Terran Command is a strategy, rts and singleplayer game developed by The Artistocrats and published by Slitherine Ltd.. Released on June 16th 2022 has received 10,784 reviews of which 9,461 were positive and 1,323 were negative resulting in a rating of 8.5 out of 10. Featuring a massive 99% discount, this game currently holds the #1 spot in the best deals for games like Grey Goo.
8.5
9,461
1,323

-99% 28.99€ 0.46€

2. Interstellar Space: Genesis

Similarity 41% Interstellar Space: Genesis is a turn-based space 4X strategy game in which you attempt to build a thriving galactic empire. Discover mysteries among the stars, colonize worlds, and engage enemies in tactical turn-based combat on your journey to becoming the ruler of the galaxy! Interstellar Space: Genesis is a strategy, indie and 4x game developed and published by Praxis Games. Released on July 25th 2019 has received 772 reviews of which 648 were positive and 124 were negative resulting in a rating of 7.9 out of 10. Thanks to its incredible 99% discount, this game is now the #2 best deal in games like Grey Goo.
7.9
648
124

-99% 27.99€ 0.46€

3. Homeworld: Deserts of Kharak

Similarity 82% A ground-based RTS prequel to the classic Homeworld games. Assemble your fleet and lead them to victory on the shifting sands of Kharak in this compelling strategy game for PC from Blackbird Interactive. Homeworld: Deserts of Kharak is a strategy, rts and sci-fi game developed by Blackbird Interactive and published by Gearbox Publishing. Released on January 20th 2016 has received 8,519 reviews of which 6,789 were positive and 1,730 were negative resulting in a rating of 7.8 out of 10. Thanks to its incredible 99% discount, this game is now the #3 best deal in games like Grey Goo.
7.8
6,789
1,730

-99% 45.99€ 0.88€

4. Ashes of the Singularity: Escalation

Similarity 45% A massive-scale real-time strategy game where you command entire armies on a dynamic battlefield. Conquer multiple worlds across several single-player campaigns; or play with your friends in multiplayer combat. Ashes of the Singularity: Escalation is a rts, base-building and pvp game developed by Stardock Entertainment and Oxide Games and published by Stardock Entertainment. Released on November 10th 2016 has received 4,772 reviews of which 3,548 were positive and 1,224 were negative resulting in a rating of 7.2 out of 10. Currently offered at a significant 99% discount, this title has earned the #4 position in the best deals for games like Grey Goo.
7.2
3,548
1,224

-99% 28.99€ 0.56€

5. Aven Colony

Similarity 43% Build a new home for humanity in Aven Colony. Discover Aven Prime - an alien planet of deserts, tundras, and wetlands light years from earth. Build your colonies into massive, sprawling cities whilst dealing with the challenges faced when settling on a new world. Aven Colony is a colony sim, city builder and strategy game developed by Mothership Entertainment LLC and published by Team17 Digital Ltd. Released on July 25th 2017 has received 2,638 reviews of which 1,921 were positive and 717 were negative resulting in a rating of 7.1 out of 10. Currently offered at a significant 99% discount, this title has earned the #5 position in the best deals for games like Grey Goo.
7.1
1,921
717

-99% 29.99€ 0.47€

6. XCOM: Enemy Unknown

Similarity 49% The XCOM: Enemy Unknown - Slingshot Pack is Now Available! XCOM: Enemy Unknown is a turn-based strategy, tactical and strategy game developed by Firaxis Games and Feral Interactive (Linux) and published by Feral Interactive (Linux) and 2K. Released on October 11th 2012 has received 56,414 reviews of which 52,717 were positive and 3,697 were negative resulting in an impressive rating of 9.2 out of 10. Currently offered at a significant 98% discount, this title has earned the #6 position in the best deals for games like Grey Goo.
9.2
52,717
3,697

-98% 19.99€ 0.47€

7. BattleGroupVR

Similarity 50% BattleGroupVR is a first person real-time space strategy where you lead a fleet of powerful warships into battle from the bridge of your own flagship. Assemble your fleet, upgrade your load-outs, train your captains, engage the enemy and secure the sector. Try not to go down with the ship. BattleGroupVR is a space sim, space and vr game developed and published by SpaceOwl Games. Released on July 31st 2023 has received 902 reviews of which 834 were positive and 68 were negative resulting in a rating of 8.7 out of 10. Currently offered at a significant 98% discount, this title has earned the #7 position in the best deals for games like Grey Goo.
8.7
834
68

-98% 20.99€ 0.42€

8. DG2: Defense Grid 2

Similarity 51% Setting the bar as the definitive tower defense game, Defense Grid 2 introduces new worlds and threats to test your tower placement strategies. With a bold new look and the addition of new game modes, player-versus-player and multiplayer co-op, every play brings fun new opportunities and challenges. DG2: Defense Grid 2 is a strategy, tower defense and indie game developed by Hidden Path Entertainment and published by Hidden Path Entertainment and 505 Games. Released on September 23rd 2014 has received 3,163 reviews of which 2,723 were positive and 440 were negative resulting in a rating of 8.3 out of 10. Currently offered at a significant 98% discount, this title has earned the #8 position in the best deals for games like Grey Goo.
8.3
2,723
440

-98% 12.49€ 0.26€

9. Battlestar Galactica Deadlock

Similarity 50% In Battlestar Galactica Deadlock™ you’ll take command of the Colonial Fleet in defense of the Twelve Colonies during the First Cylon War. Lead many different types of ships in this 3D tactical game. Every decision counts, your strategy will be vital – can you ensure mankind’s survival? Battlestar Galactica Deadlock is a strategy, space and sci-fi game developed by Black Lab Games and published by Slitherine Ltd.. Released on August 31st 2017 has received 3,460 reviews of which 2,906 were positive and 554 were negative resulting in a rating of 8.1 out of 10. Currently offered at a significant 98% discount, this title has earned the #9 position in the best deals for games like Grey Goo.
8.1
2,906
554

-98% 38.99€ 1.00€

10. Tooth and Tail

Similarity 58% Lead the revolution with an army of flamethrowing Boars, mustard gas-lobbing Skunks, and paratrooper-puking Owls. Tooth and Tail is a Real-Time-Strategy game featuring Single Player, Online Competitive Play, Split Screen, Replays, and more. Build a base, lead your army, eat your enemies! Tooth and Tail is a strategy, rts and pixel graphics game developed and published by Pocketwatch Games. Released on September 12th 2017 has received 4,057 reviews of which 3,242 were positive and 815 were negative resulting in a rating of 7.8 out of 10. Currently offered at a significant 98% discount, this title has earned the #10 position in the best deals for games like Grey Goo.
7.8
3,242
815

-98% 19.99€ 0.56€

Free games like Grey Goo on Steam

Check out this fantastic list of free-to-play games like Grey Goo you can enjoy on Steam right now, updated on June 16th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like Grey Goo.

1. Age of Empires III: Definitive Edition

Similarity 64% Age of Empires III: Definitive Edition offers players a trial of this historical single & multiplayer RTS experience. *Note: To unlock all features of the game please see the “Base Game” product. Age of Empires III: Definitive Edition is a strategy, base-building and rts game developed by World's Edge, Tantalus Media and Forgotten Empires and published by Xbox Game Studios. Released on October 15th 2020 has received 48,342 reviews of which 40,941 were positive and 7,401 were negative resulting in a rating of 8.3 out of 10. With 3,597 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Grey Goo.
8.3
40,941
7,401

3,597
players

2. War Selection

Similarity 58% War Selection is a compelling RTS game featuring base building, resource extraction and warfare. Evolve from a stone age tribe to a distinct industrial nation with unique game mechanics and battle for supremacy with dozens of players on a unique procedurally generated map. War Selection is a strategy, base-building and free to play game developed and published by Glyph Worlds. Released on October 08th 2019 has received 21,854 reviews of which 18,745 were positive and 3,109 were negative resulting in a rating of 8.4 out of 10. Thanks to its free to play tag and a daily player base of 486, this game has secured the #2 spot in the ranking of free games like Grey Goo.
8.4
18,745
3,109

486
players

3. MechWarrior Online™ Legends

Similarity 42% MechWarrior Online™ Legends is a tactical, 'Mech-based online shooter set in the vast BattleTech Universe. Assume the role of an elite MechWarrior, piloting powerful BattleMechs, fighting for supremacy over the Inner Sphere. MechWarrior Online™ Legends is a free to play, mechs and multiplayer game developed and published by Piranha Games Inc.. Released on December 10th 2015 has received 12,220 reviews of which 9,790 were positive and 2,430 were negative resulting in a rating of 7.8 out of 10. Thanks to its free to play tag and a daily player base of 450, this game has secured the #3 spot in the ranking of free games like Grey Goo.
7.8
9,790
2,430

450
players

4. Battle Nations

Similarity 45% Battle Nations is back! Build your empire and lead your armies to victory! Choose from traditional troops and vehicles or unleash exotic forces like mammoths, velociraptors, sandworms, and futuristic plasma units! Battle Nations is a free to play, strategy and turn-based strategy game developed and published by Madrona Games Inc. Released on September 18th 2014 has received 1,407 reviews of which 963 were positive and 444 were negative resulting in a rating of 6.6 out of 10. Attracting a solid base of 248 players due to its free access, this strategy game has achieved the #4 position in the best free games like Grey Goo.
6.6
963
444

248
players

5. EMERGENCY

Similarity 53% Save lives – be a hero! Join forces against the chaos in the newest title of the award-winning EMERGENCY series. Take up your shift as incident commander and coordinate with other players to fight fires, arrest gangsters and rescue injured civilians. Your city needs you! EMERGENCY is a free to play, multiplayer and strategy game developed and published by Sixteen Tons Entertainment. Released on August 15th 2023 has received 5,564 reviews of which 3,797 were positive and 1,767 were negative resulting in a rating of 6.7 out of 10. Attracting a solid base of 197 players due to its free access, this strategy game has achieved the #5 position in the best free games like Grey Goo.
6.7
3,797
1,767

197
players

6. Star Trek Timelines

Similarity 41% Explore the Final Frontier in the ultimate sci-fi strategy RPG, Star Trek Timelines! Join Starfleet and overcome challenges as you boldly go where no game has gone before – across the entire history of Star Trek. Star Trek Timelines is a free to play, strategy and space game developed and published by Tilting Point. Released on July 12th 2017 has received 1,430 reviews of which 938 were positive and 492 were negative resulting in a rating of 6.4 out of 10. Attracting a solid base of 148 players due to its free access, this strategy game has achieved the #6 position in the best free games like Grey Goo.
6.4
938
492

148
players

7. Pixel Starships

Similarity 51% Pixel Starships is an FTL-style online sci-fi strategy builder and management game with a competitive PVP tournament. Set in the retro galaxy, your role is to explore space, meet aliens, and develop your ship, crew and AI. The game contains deep strategic and 4x elements. PSS is community-driven. Pixel Starships is a sci-fi, space and strategy game developed and published by SavySoda. Released on May 23rd 2023 has received 2,732 reviews of which 2,008 were positive and 724 were negative resulting in a rating of 7.1 out of 10. Attracting a solid base of 117 players due to its free access, this strategy game has achieved the #7 position in the best free games like Grey Goo.
7.1
2,008
724

117
players

8. Hades' Star

Similarity 56% A unique space strategy game where thousands of players participate in one shared galaxy. Hades' Star is a free to play, space and strategy game developed and published by Parallel Space Inc. Released on February 27th 2019 has received 2,577 reviews of which 1,874 were positive and 703 were negative resulting in a rating of 7.1 out of 10. Attracting a solid base of 104 players due to its free access, this strategy game has achieved the #8 position in the best free games like Grey Goo.
7.1
1,874
703

104
players

9. Zero-K

Similarity 53% With 100+ truly unique units, Zero-K is an RTS of freedom and creativity, tempered by a decade of refinement. Sculpt land into a castle and throw invaders off it with a Jugglenaut. Explore a massive campaign, solo or co-op. Hop online for epic 32 player battles or fast paced 1v1, on 100s of maps. Zero-K is a strategy, free to play and rts game developed and published by Zero-K Team. Released on April 27th 2018 has received 3,922 reviews of which 3,678 were positive and 244 were negative resulting in an impressive rating of 9.0 out of 10. The game currently holds the #9 spot among the most played free games like Grey Goo.
9.0
3,678
244

93
players

10. My Lands: Black Gem Hunting

Similarity 50% My Lands is a free online RTS where dark and light forces fight for Black Gem and dominion in a vast fantasy world. Cooperation between players, joint economy development, creation of clans and alliances and elaboration of a team strategy serve as the very foundation of the game. My Lands: Black Gem Hunting is a strategy, free to play and rts game developed by Gravvit Ltd and Forbes Consult Ltd and published by ELYLAND INVESTMENT COMPANY Ltd. Released on September 16th 2014 has received 3,306 reviews of which 2,766 were positive and 540 were negative resulting in a rating of 8.1 out of 10. The game currently holds the #10 spot among the most played free games like Grey Goo.
8.1
2,766
540

51
players