Games like NEBULOUS: Fleet Command on Steam

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

Filters & Lists
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 89%
Price -85% 6.07€
Rating 8.5
Release 09 May 2016
Galactic Civilizations IV Take command of a civilization that has just achieved faster-than-light travel in Galactic Civilizations IV, the newest entry in the award-winning space 4X strategy game series. Explore the galaxy, colonize worlds, shape cultures, make alliances, fight wars and pioneer new technologies.

Similarity 87%
Price 38.99€
Rating 7.1
Release 19 Oct 2023
Breachway Explore the galaxy in this deckbuilding, sci-fi roguelike where ship upgrades and crew management are key to your survival. Optimize resource generation, engage in intense turn-based battles, and take on ever-growing threats as you seek out The Signal.

Similarity 78%
Price -49% 10.28€
Rating 7.3
Release 26 Sep 2024
Distant Worlds: Universe Distant Worlds is a vast, pausable real-time 4X space strategy game. Experience the full depth and detail of turn-based strategy, but with the simplicity and ease of real-time, and on the scale of a massively-multiplayer online game.

Similarity 77%
Price -98% 0.65€
Rating 7.3
Release 23 May 2014
Distant Worlds 2 Distant Worlds 2 is a vast, pausable real-time 4X space strategy game.

Similarity 75%
Price -99% 0.35€
Rating 6.9
Release 10 Mar 2022
X3: Reunion X3: Reunion continues the epic space saga, blending deep space trading and intense real-time combat. Explore a vast universe, establish your empire, and shape the new frontier. With enhanced graphics and intricate economies, it's a journey of strategy, simulation, and interstellar intrigue.

Similarity 74%
Price -86% 1.46€
Rating 6.9
Release 21 Jul 2006
X: Beyond the Frontier The Human Race had advanced to the point where we could travel among the stars, we developed giant automated machines to help us colonise other worlds, but there was a fault in their programming and they turned and attacked. Forcing us to lay a trap to protect Earth and exiling the Human race to stay on Earth once again.

Similarity 73%
Price -90% 0.53€
Rating 7.0
Release 08 Oct 2010
X3: Terran Conflict It is the year 2938. The long wished-for encounter of the X Universe and the Earth holds both joy and sorrow for the people. Despite flourishing trade, the clash of the diverse races, cultures and life forms creates new tensions, mistrust and open conflict that need to be overcome!

Similarity 73%
Price -95% 0.90€
Rating 8.2
Release 16 Oct 2008
Interstellar Transport Company Build a galactic transportation empire and supply humanity with everything it needs to colonize the stars. In this sci-fi logistics simulator, grow your company from a local transport agency into an interstellar logistics behemoth! Singleplayer, vs AI, and online multiplayer.

Similarity 72%
Price 21.99€
Rating 6.5
Release 24 May 2019
Star Ruler 2 Massive scale 4X-RTS set in space. Control hundreds of planets, manipulate galactic politics, research numerous advanced technologies, and command thousands of units and hundreds of planets in your quest for galactic dominance.

Similarity 71%
Price 16.79€
Rating 7.7
Release 27 Mar 2015
X2: The Threat X²: The Threat is of a new generation of space simulator games, you play the role of Julian Gardna who continues the story set by X: Beyond The Frontier. The updated graphics engine gives the universe a fresher feel with newly designed ships and stations adding to the complexity of the universe.

Similarity 70%
Price 4.99€
Rating 7.8
Release 21 Jul 2006
Buzz Aldrin's Space Program Manager Space Program Manager (SPM) is the ultimate game of space exploration. It is the mid 1950s and the race for dominance between the US and the Soviet Union is about to move into a new dimension: space.

Similarity 69%
Price -98% 0.78€
Rating 7.3
Release 31 Oct 2014
Children of a Dead Earth The most scientifically accurate space warfare simulator ever made. Now with Steam Workshop!

Similarity 69%
Price 19.50€
Rating 8.5
Release 23 Sep 2016
The Last Federation From the creators of AI War: Fleet Command comes an all-new grand strategy title with turn-based tactical combat, set in a deep simulation of an entire solar system and its billions of inhabitants. You are the last of a murdered race, determined to unify or destroy the 8 others.

Similarity 69%
Price -97% 0.72€
Rating 7.1
Release 18 Apr 2014
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 69%
Price 39.99€
Rating 8.2
Release 18 May 2017
Master of Orion The ascendant spacefaring 4X strategy game returns! A new chapter in the epic Master of Orion saga is poised to once again capture the imaginations of millions of gamers.

Similarity 68%
Price 20.99€
Rating 7.5
Release 25 Aug 2016
Nexus - The Jupiter Incident Ambitious megacorporations monopolize the conquest of space and the colonization of the solar system. At the very edge of the solar system, the companies make a discovery that will shift the technological advantage and upset the balance. And so a new conflict is born: "The Jupiter Incident."

Similarity 68%
Price 9.99€
Rating 8.2
Release 03 Jul 2007
The Last Starship The Last Starship is a 2D space construction game where you design and upgrade your starship. Choose your path: pirate hunter, miner, engineer, spacebus driver, and more, whilst exploring vibrant star systems. Enjoy a growing sandbox world, with regular free updates. Your cosmic adventure awaits!

Similarity 67%
Price 24.50€
Rating 7.6
Release 15 Feb 2023
ENDLESS™ Space - Definitive Edition ENDLESS™ Space is a turn-based 4X strategy game, covering the space colonization age in the Endless universe, where you can control every aspect of your civilization as you strive for galactic domination.

Similarity 66%
Price 9.99€
Rating 7.9
Release 04 Jul 2012
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 65%
Price -95% 0.51€
Rating 8.2
Release 04 Jun 2010
Polaris Sector Can anyone build an empire in a place like this? Other factions are naturally suspicious of newcomers and may wage war at the first sign of unidentified craft. Here, a natural death is an uncommon luxury.

Similarity 64%
Price 38.99€
Rating 6.8
Release 22 Mar 2016
The Final Earth 2 The Final Earth 2 is a vertical sci-fi city builder. Earth is unlivable, so you decide to create a space colony. Gather resources, then build and research your way to a better future! Grow your city from an exploration ship to a huge metropolis, full of advanced technology. What will you build?

Similarity 64%
Price 9.75€
Rating 8.9
Release 15 Jul 2022
Space Rogue Take on the role of a spaceship captain. Explore new worlds, and engage in intense ship-to-ship battles. Develop unique battle tactics, upgrade your ship, and recruit crew members as you fight for peace or piracy.

Similarity 64%
Price 9.99€
Rating 6.2
Release 15 Sep 2016
Terra Invicta An alien invasion has fractured humanity into seven ideological factions each with a unique vision for the future. Lead your chosen faction to take control of Earth’s nations, expand across the Solar System, and battle enemy fleets in tactical combat.

Similarity 63%
Price -66% 13.67€
Rating 7.8
Release 26 Sep 2022

Most played games like NEBULOUS: Fleet Command on Steam

Take a look at the top games like NEBULOUS: Fleet Command that are currently attracting the largest player bases on the Steam platform, as of June 15th 2025.

1. Football Manager 2024

Similarity 46% Build a world-class team ready to dominate your rivals in football’s most prestigious competitions. Progress never stops when you’re pursuing footballing greatness. Football Manager 2024 is a simulation, sports and management game developed by Sports Interactive and published by SEGA. Released on November 06th 2023 has received 23,048 reviews of which 20,927 were positive and 2,121 were negative resulting in a rating of 8.9 out of 10. The game has hit the top spot as the #1 most played game like NEBULOUS: Fleet Command, thanks to its 47,542 peak concurrent players over the last day.
8.9
20,927
2,121

47,542
players

2. Sid Meier’s Civilization® VI

Similarity 43% Expand your empire, advance your culture and go head-to-head against history’s greatest leaders. Will your civilization stand the test of time? Sid Meier’s Civilization® VI is a strategy, turn-based strategy and multiplayer game developed by Firaxis Games, Aspyr (Mac) and Aspyr (Linux) and published by Aspyr (Mac), Aspyr (Linux) and 2K. Released on October 20th 2016 has received 349,920 reviews of which 304,053 were positive and 45,867 were negative resulting in a rating of 8.6 out of 10. While seeing 25,209 players online at once in the last 24 hours, this game is currently ranked #2 among games like NEBULOUS: Fleet Command based on player count.
8.6
304,053
45,867

25,209
players

3. Crusader Kings III

Similarity 52% Love, fight, scheme, and claim greatness. Determine your noble house’s legacy in the sprawling grand strategy of Crusader Kings III. Death is only the beginning as you guide your dynasty’s bloodline in the rich and larger-than-life simulation of the Middle Ages. Crusader Kings III is a strategy, medieval and grand strategy game developed by Paradox Development Studio and published by Paradox Interactive. Released on September 01st 2020 has received 126,909 reviews of which 114,259 were positive and 12,650 were negative resulting in a rating of 8.9 out of 10. While seeing 16,838 players online at once in the last 24 hours, this game is currently ranked #3 among games like NEBULOUS: Fleet Command based on player count.
8.9
114,259
12,650

16,838
players

4. Stellaris

Similarity 89% 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. With 15,712 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like NEBULOUS: Fleet Command.
8.5
159,527
25,906

15,712
players

5. Europa Universalis IV

Similarity 54% Rule your land and dominate the world with unparalleled freedom, depth and historical accuracy. Write a new history of the world and build an empire for the ages. Europa Universalis IV is a grand strategy, strategy and historical game developed by Paradox Development Studio and Paradox Tinto and published by Paradox Interactive. Released on August 13th 2013 has received 134,436 reviews of which 116,432 were positive and 18,004 were negative resulting in a rating of 8.6 out of 10. With 14,875 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like NEBULOUS: Fleet Command.
8.6
116,432
18,004

14,875
players

6. Cities: Skylines

Similarity 46% Cities: Skylines is a modern take on the classic city simulation. The game introduces new game play elements to realize the thrill and hardships of creating and maintaining a real city whilst expanding on some well-established tropes of the city building experience. Cities: Skylines is a city builder, simulation and building game developed by Colossal Order Ltd. and published by Paradox Interactive. Released on March 10th 2015 has received 275,770 reviews of which 256,362 were positive and 19,408 were negative resulting in an impressive rating of 9.2 out of 10. With 6,752 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like NEBULOUS: Fleet Command.
9.2
256,362
19,408

6,752
players

7. Space Engineers

Similarity 45% Space Engineers is a sandbox game about engineering, construction, exploration and survival in space and on planets. Players build space ships, space stations, planetary outposts of various sizes and uses, pilot ships and travel through space to explore planets and gather resources to survive. Space Engineers is a space, sandbox and building game developed and published by Keen Software House. Released on February 28th 2019 has received 132,347 reviews of which 117,204 were positive and 15,143 were negative resulting in a rating of 8.8 out of 10. With 5,146 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like NEBULOUS: Fleet Command.
8.8
117,204
15,143

5,146
players

8. Elite Dangerous

Similarity 49% Take control of your own starship in a cutthroat galaxy. Elite Dangerous is the definitive massively multiplayer space epic. Elite Dangerous is a space sim, space and open world game developed and published by Frontier Developments. Released on April 02nd 2015 has received 100,024 reviews of which 77,388 were positive and 22,636 were negative resulting in a rating of 7.7 out of 10. With 4,961 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like NEBULOUS: Fleet Command.
7.7
77,388
22,636

4,961
players

9. Anno 1800

Similarity 52% 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 3,737 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like NEBULOUS: Fleet Command.
8.0
20,368
4,723

3,737
players

10. STAR WARS™ Empire at War - Gold Pack

Similarity 60% 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 3,114 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like NEBULOUS: Fleet Command.
9.6
38,503
932

3,114
players

Best deals on games like NEBULOUS: Fleet Command on Steam

Discover fantastic savings with the best discounts on a variety of games like NEBULOUS: Fleet Command 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 NEBULOUS: Fleet Command.

1. EarthX

Similarity 56% 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 NEBULOUS: Fleet Command.
8.3
769
106

-99% 19.99€ 0.29€

2. Battlestar Galactica Deadlock

Similarity 62% 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 NEBULOUS: Fleet Command.
8.1
2,906
554

-99% 38.99€ 0.44€

3. Old World

Similarity 62% Old World is a revolutionary new historical strategy game where you lead your dynasty over generations of rule against rival kings and queens. Wage massive wars, manage your court, and build a dynasty — or watch your empire crumble to dust. What legacy will you leave behind? Old World is a strategy, simulation and 4x game developed by Mohawk Games and published by Hooded Horse. Released on May 18th 2022 has received 4,673 reviews of which 3,841 were positive and 832 were negative resulting in a rating of 8.0 out of 10. Thanks to its incredible 99% discount, this game is now the #3 best deal in games like NEBULOUS: Fleet Command.
8.0
3,841
832

-99% 39.99€ 0.48€

4. Interstellar Space: Genesis

Similarity 59% 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. Currently offered at a significant 99% discount, this title has earned the #4 position in the best deals for games like NEBULOUS: Fleet Command.
7.9
648
124

-99% 27.99€ 0.45€

5. Homeworld: Deserts of Kharak

Similarity 53% 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 #5 position in the best deals for games like NEBULOUS: Fleet Command.
7.8
6,789
1,730

-99% 45.99€ 0.88€

6. Starpoint Gemini Warlords

Similarity 63% Strategy from the front lines! Starpoint Gemini Warlords combines 3rd person capital spaceship combat with 4X strategy and RPG gameplay elements. Build mighty war fleets and send them into battle or lead them into combat yourself. Become the Warlord and conquer the Gemini system! Starpoint Gemini Warlords is a space, rpg and open world game developed and published by Little Green Men Games. Released on May 23rd 2017 has received 3,532 reviews of which 2,593 were positive and 939 were negative resulting in a rating of 7.1 out of 10. Currently offered at a significant 99% discount, this title has earned the #6 position in the best deals for games like NEBULOUS: Fleet Command.
7.1
2,593
939

-99% 31.99€ 0.47€

7. Railroad Corporation

Similarity 52% Relive the pioneering spirit of the Golden Age of Steam by establishing your own railroad empire across 19th century North America. Bring settlements together, produce and trade goods and develop new technologies to stay ahead of the competition. Want more? RAILROAD CORPORATION 2 Out Now! Railroad Corporation is a strategy, trains and management game developed by Corbie Games and published by Iceberg Interactive. Released on November 18th 2019 has received 1,387 reviews of which 1,028 were positive and 359 were negative resulting in a rating of 7.1 out of 10. Currently offered at a significant 99% discount, this title has earned the #7 position in the best deals for games like NEBULOUS: Fleet Command.
7.1
1,028
359

-99% 35.10€ 0.44€

8. 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 #8 position in the best deals for games like NEBULOUS: Fleet Command.
7.1
1,921
717

-99% 29.99€ 0.47€

9. Distant Worlds 2

Similarity 75% Distant Worlds 2 is a vast, pausable real-time 4X space strategy game. Distant Worlds 2 is a strategy, simulation and 4x game developed by CodeForce and published by Slitherine Ltd.. Released on March 10th 2022 has received 3,237 reviews of which 2,304 were positive and 933 were negative resulting in a rating of 6.9 out of 10. Currently offered at a significant 99% discount, this title has earned the #9 position in the best deals for games like NEBULOUS: Fleet Command.
6.9
2,304
933

-99% 48.99€ 0.35€

10. Starpoint Gemini 2

Similarity 47% Captain your own space ship and roam the galaxy in 3D in this tactical space simulator with tons of RPG depth ! Space has never looked so inviting - but images can betray...It has been two years since the end of the second Gemini war, the situation in the wartorn system is further from resolution than ever. Starpoint Gemini 2 is a space, simulation and rpg game developed and published by Little Green Men Games. Released on September 26th 2014 has received 4,093 reviews of which 2,843 were positive and 1,250 were negative resulting in a rating of 6.8 out of 10. Currently offered at a significant 99% discount, this title has earned the #10 position in the best deals for games like NEBULOUS: Fleet Command.
6.8
2,843
1,250

-99% 31.99€ 0.60€

Free games like NEBULOUS: Fleet Command on Steam

Check out this fantastic list of free-to-play games like NEBULOUS: Fleet Command 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 NEBULOUS: Fleet Command.

1. Crusader Kings II

Similarity 49% Explore one of the defining periods in world history in an experience crafted by the masters of Grand Strategy. Crusader Kings II is a grand strategy, strategy and medieval game developed by Paradox Development Studio and published by Paradox Interactive. Released on February 14th 2012 has received 73,809 reviews of which 66,359 were positive and 7,450 were negative resulting in a rating of 8.9 out of 10. With 1,639 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like NEBULOUS: Fleet Command.
8.9
66,359
7,450

1,639
players

2. Star Trek Timelines

Similarity 50% 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 NEBULOUS: Fleet Command.
6.4
938
492

171
players

3. Pixel Starships

Similarity 57% 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. Thanks to its free to play tag and a daily player base of 125, this game has secured the #3 spot in the ranking of free games like NEBULOUS: Fleet Command.
7.1
2,008
724

125
players

4. Hades' Star

Similarity 53% 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 #4 spot among the most played free games like NEBULOUS: Fleet Command.
7.1
1,874
703

91
players

5. Simutrans

Similarity 47% Simutrans is a freeware and open-source transportation simulator. Your goal is to establish a successful transport company. Transport passengers, mail and goods by rail, road, ship, and even air. Interconnect districts, cities, public buildings, industries and tourist attractions. Simutrans is a simulation, free to play and trains game developed and published by The Simutrans Team. Released on May 24th 2016 has received 622 reviews of which 468 were positive and 154 were negative resulting in a rating of 7.2 out of 10. The game currently holds the #5 spot among the most played free games like NEBULOUS: Fleet Command.
7.2
468
154

34
players

6. Planet S

Similarity 50% Planet S is a real-time strategy game where your goal is to colonize multiple planets in a solar system to advance your civilization, build a city and supply it to grow your faction. Planet S is a strategy, city builder and multiplayer game developed and published by Glimmerlight Games. Released on October 28th 2023 has received 2,603 reviews of which 2,387 were positive and 216 were negative resulting in a rating of 8.8 out of 10. The game currently holds the #6 spot among the most played free games like NEBULOUS: Fleet Command.
8.8
2,387
216

15
players

7. Istrolid

Similarity 53% In Istrolid you design your own unique spaceships from a large number of parts to fit your strategy and play style. With no set units or factions you are free to create a fleet where each ship has its own balanced strengths and weaknesses, from basic fighters and bombers to hulking battleships and speedy destroyers. Istrolid is a free to play, building and strategy game developed and published by treeform. Released on May 06th 2016 has received 2,662 reviews of which 2,325 were positive and 337 were negative resulting in a rating of 8.4 out of 10. The game currently holds the #7 spot among the most played free games like NEBULOUS: Fleet Command.
8.4
2,325
337

7
players

8. Moonbase Alpha

Similarity 52% NASA has once again landed on the lunar surface with the goal of colonization, research, and further exploration. Shortly after the return to the Moon, NASA has established a small outpost on the south pole of the moon called Moonbase Alpha. Moonbase Alpha is a space, simulation and free to play game developed by Virtual Heroes and Army Game Studio and published by NASA. Released on July 06th 2010 has received 12,838 reviews of which 11,622 were positive and 1,216 were negative resulting in a rating of 8.8 out of 10. The game currently holds the #8 spot among the most played free games like NEBULOUS: Fleet Command.
8.8
11,622
1,216

5
players

9. Terra Firma

Similarity 48% Play god and create your own world in this complex simulation. Plate tectonics, wind and water erosion and plant life all develop and interact to produce a world that is viewable from a single tree to kilometres across. Terra Firma is a simulation, strategy and god game game developed and published by Working as Intended. Released on February 20th 2025 has received 360 reviews of which 333 were positive and 27 were negative resulting in a rating of 8.5 out of 10. The game currently holds the #9 spot among the most played free games like NEBULOUS: Fleet Command.
8.5
333
27

4
players

10. Terraformers: First Steps on Mars

Similarity 49% Terraformers: First Steps on Mars is a free prologue of Terraformers, featuring an exclusive challenge to lead humanity's first attempt at settling the Red Planet. Terraformers: First Steps on Mars is a strategy, simulation and colony sim game developed by Asteroid Lab and published by Goblinz Publishing and IndieArk. Released on October 23rd 2021 has received 683 reviews of which 610 were positive and 73 were negative resulting in a rating of 8.4 out of 10. The game currently holds the #10 spot among the most played free games like NEBULOUS: Fleet Command.
8.4
610
73

4
players