Games like Planets Under Attack on Steam

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

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Hades' Star A unique space strategy game where thousands of players participate in one shared galaxy.

Similarity 60%
Price Free to play
Rating 7.1
Release 27 Feb 2019
Battlefleet Gothic: Armada Battlefleet Gothic: Armada is the RTS videogame adaptation of Games Workshop’s classic tabletop game, pitting the Chaos, Imperium, Eldar, and Orks against each other in visceral space-battles.

Similarity 60%
Price -79% 3.20€
Rating 6.7
Release 21 Apr 2016
Crown and Council Crown and Council is a casual strategy game with short game sessions.

Similarity 60%
Price Free to play
Rating 6.2
Release 22 Apr 2016
Homeworld: Deserts of Kharak 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.

Similarity 60%
Price -99% 0.88€
Rating 7.8
Release 20 Jan 2016
GOLD EXPRESS New AI character "Punch" is available now! Welcome to the Project "Gold Express"! It is a cyberpunk style asymmetric multiplayer game in which you can get new survival experience with your teammates with various abilities in the strategic maps.

Similarity 60%
Price 13.49€
Rating 6.5
Release 27 Sep 2019
Zero-K 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.

Similarity 60%
Price Free to play
Rating 9.0
Release 27 Apr 2018
Galaxy Squad Galaxy squad is a hardcore turn-based tactical roguelike, inspired by FTL and XCOM.

Similarity 60%
Price 9.75€
Rating 7.1
Release 15 Jul 2019
There Came an Echo There Came an Echo is a real-time strategy game in which the player assumes command of a small squadron, using an advanced voice recognition system to issue orders. It features a character-driven sci-fi narrative that stars Wil Wheaton, Ashly Burch, Laura Bailey, Yuri Lowenthal, and more!

Similarity 60%
Price -96% 0.60€
Rating 7.0
Release 24 Feb 2015
Rivalry Rivalry is a hotseat game where two players take turns moving their rag-doll character’s limbs and weapons until one is victorious. While the beginning stages of each game captures the strategic essence of swordplay, as damage and limbs are taken, the endgame turns rather Pythonesque.

Similarity 60%
Price 2.39€
Rating 8.6
Release 22 Jan 2016
Age of Steel: Recharge "Age of Steel: Recharge" is a 2D strategy with a view from the side. You're taking the role of commander, who was entrusted the management of the military base. Your mission is to defend a base from the waves of enemies at any price.

Similarity 60%
Price -95% 0.37€
Rating 7.2
Release 06 Jan 2016
Creeper World: Anniversary Edition Imagine an enemy that is everywhere and moves like a giant, organic mass across the map. Imagine your base and your people surrounded by a blanket of crushing destruction from all directions. Your only hope, well what hope? Then you take the high ground and pound this enemy into oblivion.

Similarity 60%
Price 4.99€
Rating 9.1
Release 16 Nov 2016
ENDLESS™ Space 2 ENDLESS™ Space 2 is a Strategic Space Opera, featuring the compelling “just one more turn” gameplay, set in the mysterious ENDLESS™ Universe. As the leader of your civilization, will you impose your vision and build the greatest stellar empire?

Similarity 59%
Price 39.99€
Rating 8.2
Release 18 May 2017
Mushroom Wars Mushroom Wars is a dynamic real-time strategy game, where smart strategy meets furious action in epic PvP and PvE battles.

Similarity 59%
Price -78% 2.21€
Rating 7.3
Release 07 Apr 2016
One Troll Army Play as a giant troll in One Troll Army - a defense game about building forts, upgrading your troll, and fighting off waves of enemies. Play Against The Twitch Chat!

Similarity 59%
Price Free to play
Rating 8.2
Release 19 May 2016
Cosmoteer: Starship Architect & Commander Design and simulate the starships of your dreams! Command your ship or fleet in epic battles and manage your crew while exploring a dangerous galaxy. Play alone or with friends, test your ships in online PvP, and let your imagination reach for the stars!

Similarity 59%
Price 18.99€
Rating 9.2
Release 24 Oct 2022
PERFECT ANGLE: The puzzle game based on optical illusions Challenge your mind with puzzles based on optical illusions. Find the perfect angle by rotating the camera to clean up the chaos and find a shocking story fraught with twists.

Similarity 59%
Price -91% 0.95€
Rating 7.3
Release 22 Dec 2015
Homeworld Remastered Collection Experience the epic space strategy games that redefined the RTS genre. Control your fleet and build an armada across more than 30 single-player missions. Choose unit types, fleet formations and flight tactics for each strategic situation.

Similarity 59%
Price -93% 2.25€
Rating 8.6
Release 25 Feb 2015
HERO DEFENSE CREEPS CRUMBLE. HEROES RISE. Command a team of renegade heroes and impale, slash, tear and burn through legions of undead hell-bent on world domination. Your mission: to defeat the world’s most powerful vampire, Count Necrosis.

Similarity 59%
Price -99% 0.56€
Rating 6.1
Release 31 May 2016
DETOUR A true test your wits and spatial reasoning. Detour combines highway-building fun with the excitement of a competitive real-time strategy game. Construct a path for your convoy to reach its destination in this incredibly addictive title. With online multiplayer!

Similarity 59%
Price 0.99€
Rating 6.0
Release 16 May 2011
Warstone TD Warstone is a Tower Defense game, with RPG, Strategy, and even city building elements. Detailed Hi-res graphics and beautiful illustrations combine with a deep storyline to draw you into the world.

Similarity 59%
Price -95% 0.75€
Rating 8.0
Release 23 May 2018
Tooth and Tail 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!

Similarity 59%
Price -98% 0.56€
Rating 7.8
Release 12 Sep 2017
Circle Empires Circle Empires is a fresh take on the RTS genre, featuring a fast-paced approach to conquering the world.

Similarity 59%
Price -79% 1.86€
Rating 8.6
Release 08 Aug 2018
Creeper World 2: Anniversary Edition Deceptively simple... amazingly deep. Creeper World 2 thrusts you into the 14th millennium fighting and enemy that flows and oozes through the terrain. Employ advanced weapons,gravity manipulating repulsors, wormhole like rifts, and your own wit against this never yielding enemy.

Similarity 59%
Price 4.99€
Rating 8.4
Release 16 Nov 2016
SpyParty SpyParty is a competitive espionage game about subtle human behavior. A Spy hides in plain sight at a fancy cocktail party, trying to accomplish missions while blending in with the other guests, while a Sniper with a single bullet looks inward, searching for the Spy.

Similarity 59%
Price 24.50€
Rating 7.6
Release 12 Apr 2018

Most played games like Planets Under Attack on Steam

Take a look at the top games like Planets Under Attack that are currently attracting the largest player bases on the Steam platform, as of June 15th 2025.

1. Stellaris

Similarity 56% 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. The game has hit the top spot as the #1 most played game like Planets Under Attack, thanks to its 15,712 peak concurrent players over the last day.
8.5
159,527
25,906

15,712
players

2. STAR WARS™ Empire at War - Gold Pack

Similarity 65% 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. While seeing 3,114 players online at once in the last 24 hours, this game is currently ranked #2 among games like Planets Under Attack based on player count.
9.6
38,503
932

3,114
players

3. FTL: Faster Than Light

Similarity 63% This "spaceship simulation roguelike-like" allows you to take your ship and crew on an adventure through a randomly generated galaxy filled with glory and bitter defeat. FTL: Faster Than Light is a rogue-like, space and strategy game developed and published by Subset Games. Released on September 14th 2012 has received 75,052 reviews of which 71,561 were positive and 3,491 were negative resulting in an impressive rating of 9.4 out of 10. While seeing 1,408 players online at once in the last 24 hours, this game is currently ranked #3 among games like Planets Under Attack based on player count.
9.4
71,561
3,491

1,408
players

4. Business Tour - Board Game with Online Multiplayer

Similarity 50% "Business Tour" is a free to play multiplayer tabletop game. Build your monopoly with friends. Complete daily tasks, compete against the other players and receive trade items rewards! Business Tour - Board Game with Online Multiplayer is a board game, free to play and multiplayer game developed by and published by 8floor. Released on July 27th 2017 has received 76,772 reviews of which 46,567 were positive and 30,205 were negative resulting in a rating of 6.0 out of 10. With 979 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Planets Under Attack.
6.0
46,567
30,205

979
players

5. Supreme Commander: Forged Alliance

Similarity 51% The last days of man are at hand.. Two years after the Infinite War the once great warring nations now lie in ruins, and humanity’s hope for a brighter future is nothing but a bitter memory. A new, seemingly unstoppable enemy, supported by the zealots of The Order, now seeks to eradicate mankind: UEF, Aeon Loyalist, and Cybran alike. Supreme Commander: Forged Alliance is a strategy, rts and sci-fi game developed by Gas Powered Games and published by Square Enix. Released on September 28th 2011 has received 13,468 reviews of which 13,042 were positive and 426 were negative resulting in an impressive rating of 9.4 out of 10. With 915 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Planets Under Attack.
9.4
13,042
426

915
players

6. Plague Inc: Evolved

Similarity 56% Plague Inc: Evolved is a unique mix of high strategy and terrifyingly realistic simulation. Your pathogen has just infected 'Patient Zero' - now you must bring about the end of human history by evolving a deadly, global Plague whilst adapting against everything humanity can do to defend itself. Plague Inc: Evolved is a strategy, simulation and outbreak sim game developed and published by Ndemic Creations. Released on February 18th 2016 has received 55,664 reviews of which 52,571 were positive and 3,093 were negative resulting in an impressive rating of 9.3 out of 10. With 914 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Planets Under Attack.
9.3
52,571
3,093

914
players

7. Sins of a Solar Empire II

Similarity 61% Battle for galactic dominance in this real-time 4X strategy game with unrivaled scale! You’ll explore, expand, exploit, and exterminate through military force, diplomacy, trade, culture, influence, and other underhanded tactics. Sins of a Solar Empire II is a space, strategy and 4x game developed by Stardock Entertainment and Ironclad Games Corporation and published by Stardock Entertainment. Released on August 15th 2024 has received 6,946 reviews of which 5,949 were positive and 997 were negative resulting in a rating of 8.3 out of 10. With 834 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Planets Under Attack.
8.3
5,949
997

834
players

8. Cosmoteer: Starship Architect & Commander

Similarity 59% Design and simulate the starships of your dreams! Command your ship or fleet in epic battles and manage your crew while exploring a dangerous galaxy. Play alone or with friends, test your ships in online PvP, and let your imagination reach for the stars! Cosmoteer: Starship Architect & Commander is a sci-fi, singleplayer and 2d game developed and published by Walternate Realities. Released on October 24th 2022 has received 11,171 reviews of which 10,618 were positive and 553 were negative resulting in an impressive rating of 9.2 out of 10. With 536 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Planets Under Attack.
9.2
10,618
553

536
players

9. ENDLESS™ Space 2

Similarity 59% ENDLESS™ Space 2 is a Strategic Space Opera, featuring the compelling “just one more turn” gameplay, set in the mysterious ENDLESS™ Universe. As the leader of your civilization, will you impose your vision and build the greatest stellar empire? ENDLESS™ Space 2 is a strategy, space and sci-fi game developed by AMPLITUDE Studios and published by SEGA. Released on May 18th 2017 has received 22,190 reviews of which 18,526 were positive and 3,664 were negative resulting in a rating of 8.2 out of 10. With 527 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Planets Under Attack.
8.2
18,526
3,664

527
players

10. The Escapists 2

Similarity 49% Craft, Steal, Brawl and Escape! It’s time to bust out of the toughest prisons in the world as you return to the life of an inmate in The Escapists 2, now with multiplayer! Have you got what it takes to escape? The Escapists 2 is a multiplayer, strategy and pixel graphics game developed by Team17 and Mouldy Toof Studios and published by Team17. Released on August 21st 2017 has received 31,948 reviews of which 28,948 were positive and 3,000 were negative resulting in a rating of 8.9 out of 10. With 455 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Planets Under Attack.
8.9
28,948
3,000

455
players

Best deals on games like Planets Under Attack on Steam

Discover fantastic savings with the best discounts on a variety of games like Planets Under Attack available on Steam right now, updated on June 15th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Planets Under Attack.

1. EarthX

Similarity 63% EarthX is a rocket company management game. Go from launching small rockets on Earth to eventually building a colony on Mars. Create your own Internet constellation, develop new technologies, supply the International Space Station and terraform Mars! EarthX is a simulation, indie and strategy game developed by Denis and Ry and published by Mesote Games. Released on July 12th 2023 has received 875 reviews of which 769 were positive and 106 were negative resulting in a rating of 8.3 out of 10. Featuring a massive 99% discount, this game currently holds the #1 spot in the best deals for games like Planets Under Attack.
8.3
769
106

-99% 19.99€ 0.29€

2. Battlestar Galactica Deadlock

Similarity 56% 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. Thanks to its incredible 99% discount, this game is now the #2 best deal in games like Planets Under Attack.
8.1
2,906
554

-99% 38.99€ 0.48€

3. Interstellar Space: Genesis

Similarity 64% 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 #3 best deal in games like Planets Under Attack.
7.9
648
124

-99% 27.99€ 0.45€

4. Homeworld: Deserts of Kharak

Similarity 60% 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. Currently offered at a significant 99% discount, this title has earned the #4 position in the best deals for games like Planets Under Attack.
7.8
6,789
1,730

-99% 45.99€ 0.88€

5. Aven Colony

Similarity 52% 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 Planets Under Attack.
7.1
1,921
717

-99% 29.99€ 0.47€

6. HERO DEFENSE

Similarity 59% CREEPS CRUMBLE. HEROES RISE. Command a team of renegade heroes and impale, slash, tear and burn through legions of undead hell-bent on world domination. Your mission: to defeat the world’s most powerful vampire, Count Necrosis. HERO DEFENSE is a tower defense, strategy and indie game developed by Happy Tuesday and published by Headup. Released on May 31st 2016 has received 747 reviews of which 471 were positive and 276 were negative resulting in a rating of 6.1 out of 10. Currently offered at a significant 99% discount, this title has earned the #6 position in the best deals for games like Planets Under Attack.
6.1
471
276

-99% 29.99€ 0.56€

7. ReignMaker

Similarity 50% ReignMaker: Saving the World One Tower at a Time. ReignMaker is a match-3 game with tower defense, city building, and political strategy elements. Your policy decisions determine the fate of your city and the direction of the story. Your match-3 and tower defense skills determine the fate of the world. ReignMaker is a casual, strategy and indie game developed and published by Frogdice. Released on April 16th 2014 has received 410 reviews of which 260 were positive and 150 were negative resulting in a rating of 6.1 out of 10. Currently offered at a significant 99% discount, this title has earned the #7 position in the best deals for games like Planets Under Attack.
6.1
260
150

-99% 14.99€ 0.20€

8. BattleGroupVR

Similarity 52% 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 #8 position in the best deals for games like Planets Under Attack.
8.7
834
68

-98% 20.99€ 0.42€

9. Fibbage XL

Similarity 55% NOTE: This game first appeared in The Jackbox Party Pack. It’s Fibbage XL – The Hilarious Bluffing Party Game in standalone form! Fool your friends with your lies, avoid theirs, and find the (usually outrageous) truth. “The mayor of Rabbit Hash, Kentucky is a ____.” Baby? Rabbit? Ham sandwich? Go! Fibbage XL is a strategy, casual and indie game developed and published by Jackbox Games and Inc.. Released on March 24th 2016 has received 318 reviews of which 301 were positive and 17 were negative resulting in a rating of 8.7 out of 10. Currently offered at a significant 98% discount, this title has earned the #9 position in the best deals for games like Planets Under Attack.
8.7
301
17

-98% 9.99€ 0.22€

10. DG2: Defense Grid 2

Similarity 77% 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 #10 position in the best deals for games like Planets Under Attack.
8.3
2,723
440

-98% 12.49€ 0.26€

Free games like Planets Under Attack on Steam

Check out this fantastic list of free-to-play games like Planets Under Attack you can enjoy on Steam right now, updated on June 15th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like Planets Under Attack.

1. Business Tour - Board Game with Online Multiplayer

Similarity 50% "Business Tour" is a free to play multiplayer tabletop game. Build your monopoly with friends. Complete daily tasks, compete against the other players and receive trade items rewards! Business Tour - Board Game with Online Multiplayer is a board game, free to play and multiplayer game developed by and published by 8floor. Released on July 27th 2017 has received 76,772 reviews of which 46,567 were positive and 30,205 were negative resulting in a rating of 6.0 out of 10. With 979 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Planets Under Attack.
6.0
46,567
30,205

979
players

2. Star Trek Timelines

Similarity 53% 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. Thanks to its free to play tag and a daily player base of 171, this game has secured the #2 spot in the ranking of free games like Planets Under Attack.
6.4
938
492

171
players

3. Talisman: Digital Classic Edition

Similarity 53% The officially licensed multiplayer version of the classic fantasy adventure board game, Talisman, based on the 4th Edition of the game. On your travels, you will need strength, courage and some good dice rolls to survive the dangers you face and beat your opponents to the centre of the board! Talisman: Digital Classic Edition is a board game, tabletop and strategy game developed and published by Nomad Games. Released on February 25th 2014 has received 9,661 reviews of which 7,569 were positive and 2,092 were negative resulting in a rating of 7.7 out of 10. Thanks to its free to play tag and a daily player base of 142, this game has secured the #3 spot in the ranking of free games like Planets Under Attack.
7.7
7,569
2,092

142
players

4. Zero-K

Similarity 60% 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. Attracting a solid base of 141 players due to its free access, this strategy game has achieved the #4 position in the best free games like Planets Under Attack.
9.0
3,678
244

141
players

5. Pixel Starships

Similarity 53% 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 125 players due to its free access, this strategy game has achieved the #5 position in the best free games like Planets Under Attack.
7.1
2,008
724

125
players

6. Hades' Star

Similarity 60% 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. The game currently holds the #6 spot among the most played free games like Planets Under Attack.
7.1
1,874
703

91
players

7. My Lands: Black Gem Hunting

Similarity 56% 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 #7 spot among the most played free games like Planets Under Attack.
8.1
2,766
540

53
players

8. Emporea: Realms of War and Magic

Similarity 50% Emporea is an oldschool fantasy strategy game, where cooperation with other players is necessary to achieve victory. Only the best alliance can win! Multiple realms available, with new ones starting every two weeks. Emporea: Realms of War and Magic is a free to play, strategy and massively multiplayer game developed and published by Pixel Federation. Released on June 08th 2016 has received 526 reviews of which 359 were positive and 167 were negative resulting in a rating of 6.6 out of 10. The game currently holds the #8 spot among the most played free games like Planets Under Attack.
6.6
359
167

46
players

9. AirMech

Similarity 53% AirMech® Strike is a fast paced Action-RTS game that can be played solo, coop, or competitively online. Earn Kudos and Experience in battle and unlock a wide collection of AirMechs and Units while you practice the perfect strategy to emerge victorious! AirMech is a free to play, strategy and multiplayer game developed and published by Carbon Games. Released on March 30th 2018 has received 10,679 reviews of which 8,984 were positive and 1,695 were negative resulting in a rating of 8.2 out of 10. The game currently holds the #9 spot among the most played free games like Planets Under Attack.
8.2
8,984
1,695

45
players

10. Simply Chess

Similarity 50% The classic board game comes to Steam with asynchronous online play and 100 levels of AI. If you are a chess enthusiast or someone who just likes to play a game now and again, this is what you've been looking for. This is Simply Chess. Simply Chess is a chess, board game and multiplayer game developed and published by BlueLine Games. Released on September 11th 2015 has received 3,626 reviews of which 2,692 were positive and 934 were negative resulting in a rating of 7.2 out of 10. The game currently holds the #10 spot among the most played free games like Planets Under Attack.
7.2
2,692
934

23
players