Games like Iron Marines on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like Iron Marines are available at the bottom of the page.
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Supreme Commander: Forged Alliance
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.
Kingdom Rush 5: Alliance TD
While a formidable evil emerges, an unexpected alliance is taking shape! It will take the finest warriors of Linirea and the relentless Dark Army to stop it. Beware! Though they may journey side by side the ever-changing winds of fate could swiftly alter their course.
United Penguin Kingdom
A city-building game where you build a penguin settlement and satisfy the various needs of your penguins while dealing with seals and killer whales. Enjoy the growth of your settlement, become the king, and lead the United Penguin Kingdom.
Scarlet Tower
Hunt during the day, be hunted during the NIGHT! Scarlet Tower is a gothic horror casual game with roguelike and RPG elements, like talent trees, classes, familiars and more!
Tasty Planet: Back for Seconds
Control a tiny ball of grey goo with the ability to eat anything smaller than itself. The more it eats, the bigger it gets! Eat rats, dinosaurs, gladiators, samurai, pyramids, volcanoes... Everything! Soon you'll be eating the entire planet.
SteamWorld Heist
Command a steam-driven pirate crew in a series of epic tactical shootouts in SteamWorld Heist. This is turn-based strategy with a twist: You manually aim the guns of your robots, allowing for insane skill shots and bullet-bouncing action!
Starcom: Unknown Space
Starcom: Unknown Space is an action RPG of space exploration and adventure. Build your own starship while discovering an epic story in a universe of strange mysteries, alien factions and uncharted worlds.
Taur
Taur is an action-strategy sci-fi game. Control the Prime Cannon and unlock all of its powerful weapons and abilities. Build turrets, droids, aircraft and more as you fight to protect the homeworld of the Tauron droids against a relentless invasion. Will your Taur stand against the Imperion warmachine?
Kingdom Rush Origins - Tower Defense
Command your elven army and defend mystical lands from sea serpents, evil sorcerers, and wave after wave of gnoll tribesman, all with the help of brand-spankin’ new towers, heroes, and spells to fend off every last baddie.
Cosmic Trip
Cosmic Trip is an award-winning real-time strategy VR game. Build a base, command a flying drone army, and attack/defend hostile enemies on strange alien planets.
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?
Planet of the Eyes
An atmospheric narrative-platformer about a service robot stranded on a mysterious planet, Planet of the Eyes features a stunning visual mix of puzzle and platforming challenges, an original musical score, and fully voiced audio logs left by another survivor. Explore the mystery of an unknown world.
Halo: Spartan Strike
Halo: Spartan Strike makes you a Spartan supersoldier battling evil forces. Delve into 30 challenging missions through cities and jungles using a devastating arsenal of weapons, abilities and vehicles including the iconic Warthog against the Covenant and Promethean enemies. *DirectX feature level 10 required*
Cortex Command
Choose between different factions, with their own set of expendable soldiers, mechas, and weapons. Protect your brain, mine gold, and destroy the enemy cortex in his bunker complex!
Oriental Dynasty - Silk Road defense war
Experience the perfect combination of tower defense and the historical plot of the Silk Road, so as to bring an amazing epic game adventure experience! You will follow our protagonists in a strategic battle on the Eurasian continent! Come on, buddy, this epic fantasy adventure needs your help!
Starship Troopers: Terran Command
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!
Putin Life
Putin Life - a game that allows you to feel not only the leader of the Russian Federation, but perhaps the Lord of the world.Rob, steal, enslave.
Halo Wars: Definitive Edition
Halo Wars: Definitive Edition is an enhanced version of the real-time strategy classic, Halo Wars, updated to run natively on PC. Halo Wars: Definitive Edition includes improved graphics, new achievements and all of the DLC created for the landmark real-time strategy game.
AirMech
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!
Silica
Silica blends FPS and RTS in epic, photorealistic battles. Choose to fight on the ground or command from above as humans or aliens. Dive into thrilling multiplayer combat or master strategic command. Are you ready to survive and conquer?
Aliens: Dark Descent
Drop into the gripping journey of Aliens: Dark Descent, a squad-based, single-player action game in the iconic Alien franchise. Lead your soldiers in real-time to stop a new and terrifying kind of Xenomorph outbreak on Planet Lethe.
Shattered Planet
Explore a dangerous planet that's different every time and try to survive! The Galactic Union's job for you is clear: research the alien wildlife -- for science! However, in this case, researching may include lasers, explosions, hungry aliens, space sushi, and other similarly delicious-or-terrifying hazards.Most played games like Iron Marines on Steam
Take a look at the top games like Iron Marines that are currently attracting the largest player bases on the Steam platform, as of April 16th 2025.
1. Geometry Dash
Similarity 52% Jump and fly your way through danger in this rhythm-based action platformer! Geometry Dash is a difficult, music and level editor game developed and published by RobTop Games. Released on December 22nd 2014 has received 410,026 reviews of which 383,002 were positive and 27,024 were negative resulting in an impressive rating of 9.3 out of 10. The game has hit the top spot as the #1 most played game like Iron Marines, thanks to its 31,476 peak concurrent players over the last day.
9.3
383,002
27,024
31,476
players
2. Oxygen Not Included
Similarity 50% Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive. Oxygen Not Included is a colony sim, base-building and survival game developed and published by Klei Entertainment. Released on July 30th 2019 has received 127,145 reviews of which 123,019 were positive and 4,126 were negative resulting in an impressive rating of 9.5 out of 10. While seeing 11,579 players online at once in the last 24 hours, this game is currently ranked #2 among games like Iron Marines based on player count.
9.5
123,019
4,126
11,579
players
3. Space Engineers
Similarity 50% 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 131,727 reviews of which 116,631 were positive and 15,096 were negative resulting in a rating of 8.7 out of 10. While seeing 5,494 players online at once in the last 24 hours, this game is currently ranked #3 among games like Iron Marines based on player count.
8.7
116,631
15,096
5,494
players
4. Dyson Sphere Program
Similarity 50% 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. Dyson Sphere Program is a automation, space and base-building game developed by Youthcat Studio and published by Gamera Games. Released on January 20th 2021 has received 84,564 reviews of which 82,585 were positive and 1,979 were negative resulting in an impressive rating of 9.6 out of 10. With 5,134 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Iron Marines.
9.6
82,585
1,979
5,134
players
5. Idle Champions of the Forgotten Realms
Similarity 50% Idle Champions of the Forgotten Realms is a Dungeons & Dragons strategy management game uniting Champions from throughout the D&D multiverse into a grand adventure. Idle Champions of the Forgotten Realms is a dungeons & dragons, free to play and idler game developed and published by Codename Entertainment Inc.. Released on March 25th 2020 has received 14,368 reviews of which 11,141 were positive and 3,227 were negative resulting in a rating of 7.6 out of 10. With 3,395 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Iron Marines.
7.6
11,141
3,227
3,395
players
6. Clicker Heroes
Similarity 51% Ever wondered what one quadrillion damage per second feels like? Wonder no more! Embark on your quest to attain it today! Clicker Heroes is a clicker, idler and casual game developed and published by Playsaurus. Released on May 13th 2015 has received 61,156 reviews of which 54,871 were positive and 6,285 were negative resulting in a rating of 8.8 out of 10. With 2,697 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Iron Marines.
8.8
54,871
6,285
2,697
players
7. FTL: Faster Than Light
Similarity 50% 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 74,348 reviews of which 70,940 were positive and 3,408 were negative resulting in an impressive rating of 9.4 out of 10. With 2,432 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Iron Marines.
9.4
70,940
3,408
2,432
players
8. STAR WARS™ Empire at War - Gold Pack
Similarity 57% 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 38,771 reviews of which 37,851 were positive and 920 were negative resulting in an impressive rating of 9.6 out of 10. With 2,383 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Iron Marines.
9.6
37,851
920
2,383
players
9. Supreme Commander: Forged Alliance
Similarity 57% 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 13,370 reviews of which 12,950 were positive and 420 were negative resulting in an impressive rating of 9.4 out of 10. With 1,411 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Iron Marines.
9.4
12,950
420
1,411
players
10. Mr.Mine
Similarity 51% Explore the depths of the earth and uncover hidden treasures in this addictive idle mining game. Unlock the power of your drill with hundreds of upgrades, discover mysterious relics, and unearth priceless gems. Can you master the mines and reveal their deepest secrets? Dive in and dig deep! Mr.Mine is a idler, clicker and strategy game developed and published by Playsaurus. Released on September 30th 2020 has received 16,877 reviews of which 15,520 were positive and 1,357 were negative resulting in a rating of 9.0 out of 10. With 1,286 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Iron Marines.
9.0
15,520
1,357
1,286
players
Best deals on games like Iron Marines on Steam
Discover fantastic savings with the best discounts on a variety of games like Iron Marines available on Steam right now, updated on April 16th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Iron Marines.
1. Homeworld Remastered Collection
Similarity 54% 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. Homeworld Remastered Collection is a space, strategy and rts game developed by Gearbox Software and Aspyr (Mac) and published by Aspyr (Mac) and Gearbox Publishing. Released on February 25th 2015 has received 13,504 reviews of which 11,934 were positive and 1,570 were negative resulting in a rating of 8.6 out of 10. Featuring a massive 94% discount, this game currently holds the #1 spot in the best deals for games like Iron Marines.
8.6
11,934
1,570
-94%
33.33€
2.00€
2. Scribblenauts Unlimited
Similarity 54% The best-selling, award-winning franchise is back – on your home PC in gorgeous HD for the first time. Scribblenauts Unlimited is a puzzle, casual and adventure game developed by 5th Cell Media and published by Warner Bros. Interactive Entertainment. Released on February 15th 2013 has received 11,670 reviews of which 10,950 were positive and 720 were negative resulting in an impressive rating of 9.1 out of 10. Thanks to its incredible 93% discount, this game is now the #2 best deal in games like Iron Marines.
9.1
10,950
720
-93%
21.14€
1.48€
3. Distant Worlds: Universe
Similarity 60% 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. Distant Worlds: Universe is a strategy, 4x and space game developed by Code Force and published by Slitherine Ltd.. Released on May 23rd 2014 has received 1,815 reviews of which 1,375 were positive and 440 were negative resulting in a rating of 7.3 out of 10. Thanks to its incredible 92% discount, this game is now the #3 best deal in games like Iron Marines.
7.3
1,375
440
-92%
28.00€
2.24€
4. Tooth and Tail
Similarity 51% 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 4,043 reviews of which 3,234 were positive and 809 were negative resulting in a rating of 7.8 out of 10. Currently offered at a significant 91% discount, this title has earned the #4 position in the best deals for games like Iron Marines.
7.8
3,234
809
-91%
20.00€
1.80€
5. Shortest Trip to Earth
Similarity 50% Shortest Trip to Earth is a roguelike spaceship simulator focused on exploration, ship management and tactical battles. Embark on a perilous journey across the universe with nuclear missiles, armed crew and a cat. Shortest Trip to Earth is a rogue-lite, space and strategy game developed by Interactive Fate and published by Interactive Fate and Iceberg Interactive. Released on August 15th 2019 has received 1,385 reviews of which 1,066 were positive and 319 were negative resulting in a rating of 7.4 out of 10. Currently offered at a significant 91% discount, this title has earned the #5 position in the best deals for games like Iron Marines.
7.4
1,066
319
-91%
23.78€
2.14€
6. Space Crew: Legendary Edition
Similarity 61% Time for your toughest mission yet! Recruit and train your crew to tackle the growing threat from alien and android armies as you defend Earth to become a Galactic Legend in Space Crew: Legendary Edition. All new content free to existing owners of Space Crew! Space Crew: Legendary Edition is a action, sci-fi and adventure game developed by Runner Duck and published by Curve Games. Released on October 15th 2020 has received 2,837 reviews of which 2,140 were positive and 697 were negative resulting in a rating of 7.3 out of 10. Currently offered at a significant 91% discount, this title has earned the #6 position in the best deals for games like Iron Marines.
7.3
2,140
697
-91%
16.56€
1.49€
7. Space Rangers HD: A War Apart
Similarity 65% Space adventure, open world RPG, strategy, arcade, quest and more! Space Rangers HD: A War Apart is a space, rpg and strategy game developed by SNK Games, Elemental Games and Katauri Interactive and published by Fulqrum Publishing. Released on October 17th 2013 has received 6,610 reviews of which 6,242 were positive and 368 were negative resulting in an impressive rating of 9.1 out of 10. Currently offered at a significant 90% discount, this title has earned the #7 position in the best deals for games like Iron Marines.
9.1
6,242
368
-90%
15.30€
1.53€
8. Bloodsports.TV
Similarity 51% Co-Op Hero Defense set in a deadly post-apocalyptic Sweden. Team up with your friends and protect the Missile Silo against horrific beasts and outlaws. Bloodsports.TV is a action, hack and slash and indie game developed by Toadman Interactive and Fatshark and published by Fatshark. Released on March 30th 2015 has received 651 reviews of which 508 were positive and 143 were negative resulting in a rating of 7.4 out of 10. Currently offered at a significant 90% discount, this title has earned the #8 position in the best deals for games like Iron Marines.
7.4
508
143
-90%
9.99€
0.99€
9. Holy Potatoes! We’re in Space?!
Similarity 50% Holy Potatoes! We’re in Space?! is a whacky space exploration game where you manage your very own spaceship, craft hundreds of weapons, and explore the vastness of a veggie-filled universe. Holy Potatoes! We’re in Space?! is a adventure, indie and simulation game developed by Daylight Studios and published by Daedalic Entertainment. Released on February 14th 2017 has received 957 reviews of which 637 were positive and 320 were negative resulting in a rating of 6.5 out of 10. Currently offered at a significant 90% discount, this title has earned the #9 position in the best deals for games like Iron Marines.
6.5
637
320
-90%
9.99€
0.99€
10. Anomaly: Warzone Earth
Similarity 55% Lead an armored squad through the perils of this reversed tower defense action-strategy game! Anomaly: Warzone Earth is a strategy, indie and tower defense game developed and published by 11 bit studios. Released on April 08th 2011 has received 4,622 reviews of which 4,025 were positive and 597 were negative resulting in a rating of 8.4 out of 10. Currently offered at a significant 89% discount, this title has earned the #10 position in the best deals for games like Iron Marines.
8.4
4,025
597
-89%
9.99€
1.09€
Free games like Iron Marines on Steam
Check out this fantastic list of free-to-play games like Iron Marines you can enjoy on Steam right now, updated on April 16th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like Iron Marines.
1. Idle Champions of the Forgotten Realms
Similarity 50% Idle Champions of the Forgotten Realms is a Dungeons & Dragons strategy management game uniting Champions from throughout the D&D multiverse into a grand adventure. Idle Champions of the Forgotten Realms is a dungeons & dragons, free to play and idler game developed and published by Codename Entertainment Inc.. Released on March 25th 2020 has received 14,368 reviews of which 11,141 were positive and 3,227 were negative resulting in a rating of 7.6 out of 10. With 3,395 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Iron Marines.
7.6
11,141
3,227
3,395
players
2. Clicker Heroes
Similarity 51% Ever wondered what one quadrillion damage per second feels like? Wonder no more! Embark on your quest to attain it today! Clicker Heroes is a clicker, idler and casual game developed and published by Playsaurus. Released on May 13th 2015 has received 61,156 reviews of which 54,871 were positive and 6,285 were negative resulting in a rating of 8.8 out of 10. Thanks to its free to play tag and a daily player base of 2,697, this game has secured the #2 spot in the ranking of free games like Iron Marines.
8.8
54,871
6,285
2,697
players
3. Mr.Mine
Similarity 51% Explore the depths of the earth and uncover hidden treasures in this addictive idle mining game. Unlock the power of your drill with hundreds of upgrades, discover mysterious relics, and unearth priceless gems. Can you master the mines and reveal their deepest secrets? Dive in and dig deep! Mr.Mine is a idler, clicker and strategy game developed and published by Playsaurus. Released on September 30th 2020 has received 16,877 reviews of which 15,520 were positive and 1,357 were negative resulting in a rating of 9.0 out of 10. Thanks to its free to play tag and a daily player base of 1,286, this game has secured the #3 spot in the ranking of free games like Iron Marines.
9.0
15,520
1,357
1,286
players
4. Soda Dungeon 2
Similarity 54% Everyone’s favorite laid-back dungeon crawler returns in Soda Dungeon 2. Featuring a new adventure, a whole town to upgrade, crafting, new classes, alternate dimensions, and more! It’s everything you loved about the original plus all the stuff you’ve been asking for. Soda Dungeon 2 is a free to play, idler and rpg game developed by AN Productions and Poxpower and published by Armor Games Studios. Released on July 09th 2020 has received 5,380 reviews of which 5,079 were positive and 301 were negative resulting in an impressive rating of 9.1 out of 10. Attracting a solid base of 289 players due to its free access, this strategy game has achieved the #4 position in the best free games like Iron Marines.
9.1
5,079
301
289
players
5. Endless Sky
Similarity 62% 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 6,579 reviews of which 6,074 were positive and 505 were negative resulting in a rating of 8.9 out of 10. Attracting a solid base of 122 players due to its free access, this strategy game has achieved the #5 position in the best free games like Iron Marines.
8.9
6,074
505
122
players
6. Soda Dungeon
Similarity 54% Pop the top on some legendary action with Soda Dungeon, the fresh and fizzy hit mobile RPG adventure, now available on your desktop! Manage your team as you raid the local dungeons, upgrade your tavern, and attract new party members. Gold, legendary items, and more await you. Soda Dungeon is a free to play, rpg and pixel graphics game developed by AN Productions and Poxpower and published by Armor Games Studios. Released on February 06th 2017 has received 6,140 reviews of which 5,791 were positive and 349 were negative resulting in an impressive rating of 9.1 out of 10. Attracting a solid base of 113 players due to its free access, this strategy game has achieved the #6 position in the best free games like Iron Marines.
9.1
5,791
349
113
players
7. 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 3,304 reviews of which 2,766 were positive and 538 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 Iron Marines.
8.1
2,766
538
92
players
8. Art of War: Red Tides
Similarity 62% Art of War: Red Tides is a fair multiplayer strategy game that allows different teams on the same platform (e.g. smartphones, PC, etc.) to battle against each other. You will encounter players around the world! Art of War: Red Tides is a free to play, strategy and multiplayer game developed and published by Game Science. Released on December 22nd 2016 has received 6,893 reviews of which 5,437 were positive and 1,456 were negative resulting in a rating of 7.7 out of 10. The game currently holds the #8 spot among the most played free games like Iron Marines.
7.7
5,437
1,456
77
players
9. AirMech
Similarity 55% 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 10,654 reviews of which 8,960 were positive and 1,694 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 Iron Marines.
8.2
8,960
1,694
52
players
10. Battle Islands
Similarity 51% Battle friends over air, land and sea in this epic WW2-themed battle strategy game. Battle Islands is a strategy, free to play and multiplayer game developed by DR Studios and published by 505 Games. Released on August 06th 2014 has received 3,424 reviews of which 2,601 were positive and 823 were negative resulting in a rating of 7.4 out of 10. The game currently holds the #10 spot among the most played free games like Iron Marines.
7.4
2,601
823
22
players