Games like X2: The Threat on Steam

For those who prefer not to search, lists of the most played, top deals and best free games like X2: The Threat are available at the bottom of the page.

Filters & Lists
Interstellar Space: Genesis 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!

Similarity 50%
Price -99% 0.46€
Rating 7.9
Release 25 Jul 2019
Halcyon 6: Starbase Commander Halcyon 6: Starbase Commander is a retro space strategy RPG with base building, deep tactical combat, crew management and emergent storytelling.

Similarity 50%
Price -96% 0.73€
Rating 8.0
Release 08 Sep 2016
Surviving Mars There will be challenges to overcome. Execute your strategy and improve your colony’s chances of survival while unlocking the mysteries of this alien world. Are you ready? Mars is waiting for you.

Similarity 50%
Price -85% 4.66€
Rating 8.3
Release 15 Mar 2018
Strike Suit Zero Immerse yourself in massive fleet battles where your dog-fighting skills will directly affect the fate of the cosmos.

Similarity 50%
Price -89% 2.28€
Rating 7.4
Release 23 Jan 2013
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 50%
Price -99% 0.88€
Rating 7.8
Release 20 Jan 2016
SpaceBourne Spacebourne is an open space exploration game with Rpg elements. Its world consists of different factions at war. You as an expert pilot need to choose your side or be on no one's side and create a force of your own. Load up your weapons, Ready your ship and warp to adventure.

Similarity 50%
Price 12.49€
Rating 7.3
Release 18 Jul 2020
Star Trek™: Bridge Crew Star Trek™: Bridge Crew, playable in both VR and non-VR, will immerse you in the Star Trek universe. In co-op, form a crew of four players to serve in the roles of Captain, Helm, Tactical or Engineer. Make strategic decisions and coordinate actions with your crew.

Similarity 50%
Price 24.99€
Rating 7.3
Release 30 May 2017
Flight Of Nova Flight of Nova is a simulator based on newtonian mechanics in which you control spacecraft in the Noren star system. You fly multiple types of spacecraft doing transport and search missions in an environment with realistic aerodynamics and orbital physics.

Similarity 50%
Price 24.99€
Rating 8.7
Release 31 May 2022
Shadow Empire Shadow Empire is a deep turn-based 4X wargame with a unique blend of military focus, procedurally generated content and role-playing features. Players take the seat of the supreme ruler of a small nation, with the goal of reconquering a devastated planet.

Similarity 50%
Price -88% 4.84€
Rating 8.3
Release 03 Dec 2020
Yet Another Research Dog The research dog is a newly graduated Ph.D.. His life-long dream is to become a great scientist, but the fortune is not on his side. After years of hard working, he is finally offered an intern position in a random lab. However, the job is not that easy and happy as he expected.

Similarity 50%
Price 0.79€
Rating 7.9
Release 02 Feb 2018
Reentry - A Space Flight Simulator Do you have what it takes to be an astronaut? Reentry is a realistic space flight simulator based on NASAs space programs; from the first American human spaceflight in Project Mercury, the rendezvous and EVAs of Project Gemini to the Moon landing in Project Apollo.

Similarity 50%
Price 28.99€
Rating 9.1
Release 15 Nov 2018
Dune: Imperium The award-winning board game of strategy and intrigue in the iconic universe of Dune. The Spice must flow.

Similarity 50%
Price -58% 9.54€
Rating 9.1
Release 13 Mar 2024
RollerCoaster Tycoon® Classic Create incredible parks in the original rollercoaster sim from Chris Sawyer.

Similarity 50%
Price 19.99€
Rating 8.7
Release 28 Sep 2017
Hostile Waters: Antaeus Rising In 2032 an Earth that knows only peace is forced to relearn the art of war. Twenty years have passed since the population of Earth did a fine job of destroying nearly everything in one final struggle for power by the politicians and military leaders.

Similarity 50%
Price -90% 0.32€
Rating 7.2
Release 30 Jan 2014
Rodina A single-developer passion project. A seamless full scale solar system. Thrilling action. Be part of an incredible journey as a Universe is built from the ground up!

Similarity 50%
Price 14.99€
Rating 8.8
Release 28 Jul 2014
Tropico 3 Become the dictator of a remote island during the Cold War. Charm, persuade, intimidate, oppress, or cheat your people to stay in power! Are you a kind and generous leader? A corrupt and ruthless tyrant ruling with an iron fist?

Similarity 50%
Price 9.99€
Rating 8.5
Release 13 Nov 2009
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 50%
Price -96% 0.81€
Rating 7.0
Release 17 Oct 2018
Dyson Sphere Program Build the most efficient intergalactic factory in space simulation strategy game Dyson Sphere Program! Harness the power of stars, collect resources, plan and design production lines and develop your interstellar factory from a small space workshop to a galaxy-wide industrial empire.

Similarity 49%
Price 16.79€
Rating 9.6
Release 20 Jan 2021
Earth 2140 The year is 2140. After numerous wars and several environmental disasters, only two world powers remain; the United Civilized States (»UCS«), covering the American continent, Western Europe and North Africa, and the Eurasian Dynasty (»ED«) covering the coherent landmasses of Eastern Europe and Asia.

Similarity 49%
Price -97% 0.21€
Rating 6.1
Release 15 Nov 2013
Shop Tycoon: Prepare your wallet Shop Tycoon is a store simulator. Create a supermarket, sex shop, games store or a store with good Polish vodka. Place your logo, hire employees, expand your car fleet, build offices and parking lots, create a chain of stores and more!

Similarity 49%
Price -82% 1.07€
Rating 7.3
Release 25 Aug 2021
Submarine Titans Submarine Titans is a real-time strategy video game that takes place in the year 2115 after a comet has struck Earth, driving two human factions, the militant White Sharks and the scientific Black Octopi, to establish underwater bases and fight for dominance over the oceans.

Similarity 49%
Price 4.99€
Rating 8.0
Release 18 Mar 2020
EVE Online EVE Online is a free-to-play community driven space MMO where players can choose their own path from countless different options. Experience space exploration, immense PvP and PvE battles, mining, industry and a thriving player economy in an ever-expanding sandbox.

Similarity 49%
Price Free to play
Rating 7.3
Release 15 Dec 2010
7,62 High Calibre 7.62 High Calibre is a tactical action game, sequel to Brigade E5. A professional mercenary is in pursuit of a certain Russian "businessman", who stole a large amount of money from his "colleagues". Now he is hiding in a small country of Latin America to avoid an inevitable punishment.

Similarity 49%
Price -90% 0.53€
Rating 7.2
Release 30 Apr 2014
Jurassic World Evolution 2 Jurassic World Evolution 2 is the much-anticipated sequel to Frontier’s highly successful Jurassic World Evolution. This bold new era in the Jurassic World Evolution game franchise builds upon the ground-breaking and immersive 2018 management simulation.

Similarity 49%
Price -89% 6.67€
Rating 8.8
Release 09 Nov 2021

Most played games like X2: The Threat on Steam

Take a look at the top games like X2: The Threat that are currently attracting the largest player bases on the Steam platform, as of June 16th 2025.

1. Football Manager 2024

Similarity 45% 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 X2: The Threat, thanks to its 41,995 peak concurrent players over the last day.
8.9
20,927
2,121

41,995
players

2. Stellaris

Similarity 65% 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 X2: The Threat based on player count.
8.5
159,527
25,906

13,555
players

3. Elite Dangerous

Similarity 60% 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. While seeing 4,593 players online at once in the last 24 hours, this game is currently ranked #3 among games like X2: The Threat based on player count.
7.7
77,388
22,636

4,593
players

4. EVE Online

Similarity 49% EVE Online is a free-to-play community driven space MMO where players can choose their own path from countless different options. Experience space exploration, immense PvP and PvE battles, mining, industry and a thriving player economy in an ever-expanding sandbox. EVE Online is a space, free to play and massively multiplayer game developed and published by CCP. Released on December 15th 2010 has received 36,388 reviews of which 26,813 were positive and 9,575 were negative resulting in a rating of 7.3 out of 10. With 4,117 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like X2: The Threat.
7.3
26,813
9,575

4,117
players

5. Anno 1800

Similarity 51% 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 #5 spot among the most played games like X2: The Threat.
8.0
20,368
4,723

3,157
players

6. STAR WARS™ Empire at War - Gold Pack

Similarity 58% 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 #6 spot among the most played games like X2: The Threat.
9.6
38,503
932

2,985
players

7. Transport Fever 2

Similarity 48% The classic transport simulation genre has a new gold standard with Transport Fever 2. Discover a whole new world by navigating transport routes through land, water and air. May progress and prosperity find their way! Transport Fever 2 is a simulation, strategy and management game developed by Urban Games and published by Good Shepherd Entertainment. Released on December 11th 2019 has received 27,627 reviews of which 24,960 were positive and 2,667 were negative resulting in a rating of 8.9 out of 10. With 2,477 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like X2: The Threat.
8.9
24,960
2,667

2,477
players

8. Jurassic World Evolution 2

Similarity 49% Jurassic World Evolution 2 is the much-anticipated sequel to Frontier’s highly successful Jurassic World Evolution. This bold new era in the Jurassic World Evolution game franchise builds upon the ground-breaking and immersive 2018 management simulation. Jurassic World Evolution 2 is a dinosaurs, building and simulation game developed and published by Frontier Developments. Released on November 09th 2021 has received 36,638 reviews of which 32,817 were positive and 3,821 were negative resulting in a rating of 8.8 out of 10. With 2,251 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like X2: The Threat.
8.8
32,817
3,821

2,251
players

9. X4: Foundations

Similarity 55% Thrilling space battles meet deep strategy. X4 invites you to explore, fight, trade, and build an empire in a dynamic, fully simulated space sandbox, where every decision shapes your journey. Now featuring the 2025 flight model overhaul. X4: Foundations is a space sim, simulation and sandbox game developed and published by Egosoft. Released on November 30th 2018 has received 23,847 reviews of which 18,951 were positive and 4,896 were negative resulting in a rating of 7.8 out of 10. With 2,190 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like X2: The Threat.
7.8
18,951
4,896

2,190
players

10. Kerbal Space Program

Similarity 52% In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics. Kerbal Space Program is a space, simulation and sandbox game developed by Squad and published by Private Division. Released on April 27th 2015 has received 127,162 reviews of which 121,084 were positive and 6,078 were negative resulting in an impressive rating of 9.4 out of 10. With 2,138 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like X2: The Threat.
9.4
121,084
6,078

2,138
players

Best deals on games like X2: The Threat on Steam

Discover fantastic savings with the best discounts on a variety of games like X2: The Threat 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 X2: The Threat.

1. EarthX

Similarity 64% 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 X2: The Threat.
8.3
769
106

-99% 19.99€ 0.29€

2. Interstellar Space: Genesis

Similarity 50% 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 X2: The Threat.
7.9
648
124

-99% 27.99€ 0.46€

3. Homeworld: Deserts of Kharak

Similarity 50% 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 X2: The Threat.
7.8
6,789
1,730

-99% 45.99€ 0.88€

4. Aven Colony

Similarity 60% 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 #4 position in the best deals for games like X2: The Threat.
7.1
1,921
717

-99% 29.99€ 0.47€

5. Distant Worlds 2

Similarity 69% 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 #5 position in the best deals for games like X2: The Threat.
6.9
2,304
933

-99% 48.99€ 0.36€

6. Starpoint Gemini 2

Similarity 70% 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 #6 position in the best deals for games like X2: The Threat.
6.8
2,843
1,250

-99% 31.99€ 0.57€

7. BattleGroupVR

Similarity 56% 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 X2: The Threat.
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 X2: The Threat.
8.3
2,723
440

-98% 12.49€ 0.26€

9. Battlestar Galactica Deadlock

Similarity 66% 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 X2: The Threat.
8.1
2,906
554

-98% 38.99€ 1.00€

10. Tin Can

Similarity 63% You've barely managed to escape your exploding spaceship. Now in an old escape pod, you hurtle through space at the mercy of the cosmos. With no knowledge of the pod’s complex systems, your life depends on a technical manual and your own wits. How long can you survive? Tin Can is a simulation, space and survival game developed by Tin Can Studio and published by Tin Can Studio and IndieArk. Released on May 12th 2022 has received 1,198 reviews of which 1,015 were positive and 183 were negative resulting in a rating of 8.1 out of 10. Currently offered at a significant 98% discount, this title has earned the #10 position in the best deals for games like X2: The Threat.
8.1
1,015
183

-98% 17.99€ 0.46€

Free games like X2: The Threat on Steam

Check out this fantastic list of free-to-play games like X2: The Threat 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 X2: The Threat.

1. EVE Online

Similarity 49% EVE Online is a free-to-play community driven space MMO where players can choose their own path from countless different options. Experience space exploration, immense PvP and PvE battles, mining, industry and a thriving player economy in an ever-expanding sandbox. EVE Online is a space, free to play and massively multiplayer game developed and published by CCP. Released on December 15th 2010 has received 36,388 reviews of which 26,813 were positive and 9,575 were negative resulting in a rating of 7.3 out of 10. With 4,117 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like X2: The Threat.
7.3
26,813
9,575

4,117
players

2. Star Trek Timelines

Similarity 52% 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 148, this game has secured the #2 spot in the ranking of free games like X2: The Threat.
6.4
938
492

148
players

3. Endless Sky

Similarity 63% Endless Sky is a 2D space trading and combat game inspired by the classic Escape Velocity series. Work your way up from a relatively wimpy shuttle, cargo ship, or fighter, to a highly upgraded and customized flagship or to a massive fleet of warships or freighters. Endless Sky is a space, free to play and open world game developed and published by Michael Zahniser. Released on October 30th 2015 has received 6,651 reviews of which 6,141 were positive and 510 were negative resulting in a rating of 8.9 out of 10. Thanks to its free to play tag and a daily player base of 135, this game has secured the #3 spot in the ranking of free games like X2: The Threat.
8.9
6,141
510

135
players

4. 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 #4 position in the best free games like X2: The Threat.
7.1
2,008
724

117
players

5. Hades' Star

Similarity 49% 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 #5 position in the best free games like X2: The Threat.
7.1
1,874
703

104
players

6. Fun Hospital

Similarity 46% Build your own theme hospital! Here, you might meet patients with a lot of hair, or no hair; strange aliens, evil guy, super hero… Fun Hospital is a casual, strategy and simulation game developed and published by OrangesGame Technology Limited. Released on June 21st 2018 has received 578 reviews of which 367 were positive and 211 were negative resulting in a rating of 6.2 out of 10. The game currently holds the #6 spot among the most played free games like X2: The Threat.
6.2
367
211

54
players

7. Kingdom: Classic

Similarity 48% Kingdom is a 2D sidescrolling strategy/resource management hybrid with a minimalist feel wrapped in a beautiful, modern pixel art aesthetic. Kingdom: Classic is a free to play, strategy and singleplayer game developed by Noio and Licorice and published by Raw Fury. Released on October 21st 2015 has received 22,088 reviews of which 20,023 were positive and 2,065 were negative resulting in a rating of 8.9 out of 10. The game currently holds the #7 spot among the most played free games like X2: The Threat.
8.9
20,023
2,065

48
players

8. Planet S

Similarity 48% 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 #8 spot among the most played free games like X2: The Threat.
8.8
2,387
216

17
players

9. Simutrans

Similarity 46% 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 #9 spot among the most played free games like X2: The Threat.
7.2
468
154

16
players

10. Oxygen: First Breath

Similarity 45% This is a free version of Oxygen, featuring the first 50 game-days. Build your city around the Oxygen Center and ensure your people's survival in a post-apocalyptic future, threatened by crack explosions, deadly winds, droughts and frosts. Lead your people and keep the Oxygen Center running! Oxygen: First Breath is a strategy, base-building and city builder game developed by Turquoise Revival Games and published by GrabTheGames and UpgradePoint. Released on October 07th 2022 has received 1,594 reviews of which 1,432 were positive and 162 were negative resulting in a rating of 8.6 out of 10. The game currently holds the #10 spot among the most played free games like X2: The Threat.
8.6
1,432
162

4
players