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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Defense Grid: The Awakening
Defense Grid: The Awakening is a unique spin on tower defense gameplay that will appeal to players of all skill levels. A horde of enemies is invading, and it's up to the player to stop them by strategically building fortification towers around their base.
Asgard's Fall — Viking Survivors
Embark on an epic saga in Asgard's Fall, a norse Survivors-like Roguelite. Fight your way through hordes of creatures and let the gods feel your relentless wrath. How will your saga unfold?
2112TD: Tower Defense Survival
Get ready for the ULTIMATE tower defense onslaught. Build, deploy, research and upgrade your defenses in this epic, old school RTS inspired sci-fi adventure.
Lair of the Clockwork God
A fast-paced Point-and-Click adventure AND an indie platfomer in one! Join adventurer Ben and wannabe indie darling Dan in a race against time to stop all the Apocalypses happening at the same time.
Almost There: The Platformer
Sprint between saw blades while dodging homing missiles. Duck under lasers while the floor crumbles beneath you. Almost There was designed specifically for fans of the hardcore platforming genre - you've been warned.
ARMORED KITTEN
Awesome side scroll action about Cute and Deadly Kitten with a double shotgun!
Zombie Defense
A modern hybrid of the classic RTS and modern Tower Defense. Recruit soldiers, place them on slots and let them shoot incoming waves of zombies by their own. Order supplies, throw grenades, order airstrikes and many more... Perfect mix of strategy, tactics and micromanagement.
Space Pilgrim Episode I: Alpha Centauri
Captain Gail Pilgrim has been flying starships since she was a kid, ferrying passengers between planets and space stations across the galaxy. She has no reason to expect that this latest trip to Alpha Centauri will be anything special, even if her passengers are a little more diverse than usual....
Airscape - The Fall of Gravity
Airscape is a fast-paced, ultra-challenging 60 level action platformer. You play a deep-sea octopus, kidnapped by a mechanical alien race. Jump, dodge, and swim through a skybound environment full of floating islands, water formations, and robotic terrors.
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!
Sparkle 2 Evo
Control the evolution with the touch of your finger. Can you grow the biggest Sparkle in the world?
SPORE™ Creepy & Cute Parts Pack
Add horror and humor to your universe. Make grotesque beasts or cuddly critters, then watch them do the robot, zombie walk, break dance and more! Includes over 100 new items. 60 New parts 48 New paint options 24 New animations
Sunshine Heavy Industries
Welcome to Sunshine Heavy Industries! As the new spaceship engineer, solve increasingly tricky design puzzles with your own personal style. Manage customer demands, juggle budget and ship performance, and survive the questionable decision making skills of your business partner.
Mr.Mine
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!
EmergeNYC
EmergeNYC is a simulation of New York City's Emergency Services. Drive over 30 different Emergency Vehicles with up to 32 of your friends through busy City Streets with blazing sirens and air horns. Take the role of a firefighter, medic, or police officer and ride with your friends to emergencies
Clicker Heroes
Ever wondered what one quadrillion damage per second feels like? Wonder no more! Embark on your quest to attain it today!
Bloodsports.TV
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.
Executive Assault
Executive Assault is an indie real-time strategy/first-person shooter where you can not only build your base and create armies, but also take control of your units and fight as one of them.
Star Saviors
Saviors brings the best bullet hell experience you can find on Steam. Play through 18 challenging stages in this ultimate test of tactics and reflexes.
Battle Islands
Battle friends over air, land and sea in this epic WW2-themed battle strategy game.
Halo: Spartan Assault
Halo: Spartan Assault brings the excitement of Halo combat to Steam for the very first time. Battle your way through 30 action-packed missions against the Covenant as you explore the origin of the Spartan Ops program featured in Halo 4. *DirectX feature level 10 required. *
Shadow Tactics: Aiko's Choice
Aiko's Choice is the anticipated standalone expansion to the acclaimed stealth strategy game Shadow Tactics. Set in Edo Japan, you take control of the skillful kunoichi adept Aiko and her deadly assassin friends to hunt down the ghosts of her past.
SPACE / MECH / PILOT
The S/M/P Initiative is not responsible for any odd abnormalities while playing. Connections to other universes are not monitored or controlled by the video game program. Keep away from children under the age of 6. Fun to play but not to eat.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 17,188 peak concurrent players over the last day.
9.3
383,002
27,024
17,188
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 4,534 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
4,534
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 3,101 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
3,101
players
4. 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 2,718 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Iron Marines.
7.6
11,141
3,227
2,718
players
5. 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 2,095 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Iron Marines.
8.8
54,871
6,285
2,095
players
6. 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 1,968 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Iron Marines.
9.6
82,585
1,979
1,968
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 1,832 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
1,832
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 1,640 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
1,640
players
9. 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 simulation game developed and published by Playsaurus. Released on September 30th 2020 has received 16,928 reviews of which 15,565 were positive and 1,363 were negative resulting in a rating of 9.0 out of 10. With 870 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Iron Marines.
9.0
15,565
1,363
870
players
10. 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 667 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Iron Marines.
9.4
12,950
420
667
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 2,718 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
2,718
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 2,095, this game has secured the #2 spot in the ranking of free games like Iron Marines.
8.8
54,871
6,285
2,095
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 simulation game developed and published by Playsaurus. Released on September 30th 2020 has received 16,928 reviews of which 15,565 were positive and 1,363 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 870, this game has secured the #3 spot in the ranking of free games like Iron Marines.
9.0
15,565
1,363
870
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 255 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
255
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 103 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
103
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. The game currently holds the #6 spot among the most played free games like Iron Marines.
9.1
5,791
349
78
players
7. 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 #7 spot among the most played free games like Iron Marines.
8.2
8,960
1,694
47
players
8. 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 #8 spot among the most played free games like Iron Marines.
8.1
2,766
538
41
players
9. 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 #9 spot among the most played free games like Iron Marines.
7.7
5,437
1,456
17
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
17
players