Free to Play RTS Games on Steam
Check out this fantastic list of free-to-play rts games you can enjoy on Steam right now, updated on July 31st 2025. Looking for even more free titles? Explore the complete list of the best free to play rts games.
Lists & Categories
1. Age of Empires III: Definitive Edition
Age of Empires III: Definitive Edition offers players a trial of this historical single & multiplayer RTS experience. *Note: To unlock all features of the game please see the “Base Game” product. Age of Empires III: Definitive Edition is a game developed and published by . Released on October 15th 2020 has received 48,342 reviews of which 40,941 were positive and 7,401 were negative resulting in a rating of 8.3 out of 10. The game has hit the top spot as the #1 most played rts game, thanks to its 3,275 peak concurrent players over the last day.
8.3
40,941
7,401
3,275
players
2. War Selection
War Selection is a compelling RTS game featuring base building, resource extraction and warfare. Evolve from a stone age tribe to a distinct industrial nation with unique game mechanics and battle for supremacy with dozens of players on a unique procedurally generated map. War Selection is a game developed and published by . Released on October 08th 2019 has received 21,854 reviews of which 18,745 were positive and 3,109 were negative resulting in a rating of 8.4 out of 10. While seeing 458 players online at once in the last 24 hours, this game is currently ranked #2 among rts games based on player count.
8.4
18,745
3,109
458
players
3. EMERGENCY
Save lives – be a hero! Join forces against the chaos in the newest title of the award-winning EMERGENCY series. Take up your shift as incident commander and coordinate with other players to fight fires, arrest gangsters and rescue injured civilians. Your city needs you! EMERGENCY is a game developed and published by . Released on August 15th 2023 has received 5,701 reviews of which 3,882 were positive and 1,819 were negative resulting in a rating of 6.7 out of 10. While seeing 189 players online at once in the last 24 hours, this game is currently ranked #3 among rts games based on player count.
6.7
3,882
1,819
189
players
4. Zero-K
With 100+ truly unique units, Zero-K is an RTS of freedom and creativity, tempered by a decade of refinement. Sculpt land into a castle and throw invaders off it with a Jugglenaut. Explore a massive campaign, solo or co-op. Hop online for epic 32 player battles or fast paced 1v1, on 100s of maps. Zero-K is a game developed and published by . Released on April 27th 2018 has received 3,922 reviews of which 3,678 were positive and 244 were negative resulting in an impressive rating of 9.0 out of 10. With 105 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played rts games.
9.0
3,678
244
105
players
5. World War Armies
World War Armies is the ultimate PvP real-time strategy game. Command advanced war machines and compete for free against other players worldwide. Revolutionary mechanics reduce downtime and focus on direct engagement with the enemy, you get to the fun parts of RTS faster. World War Armies is a game developed and published by . Released on May 02nd 2024 has received 798 reviews of which 496 were positive and 302 were negative resulting in a rating of 6.1 out of 10. The game currently holds the #5 spot among the most played rts games.
6.1
496
302
42
players
6. My Lands: Black Gem Hunting
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 game developed and published by . Released on September 16th 2014 has received 3,306 reviews of which 2,766 were positive and 540 were negative resulting in a rating of 8.1 out of 10. The game currently holds the #6 spot among the most played rts games.
8.1
2,766
540
39
players
7. 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! AirMech is a game developed and published by . Released on March 30th 2018 has received 10,679 reviews of which 8,984 were positive and 1,695 were negative resulting in a rating of 8.2 out of 10. The game currently holds the #7 spot among the most played rts games.
8.2
8,984
1,695
26
players
8. AOD: Art Of Defense
AOD is a new gameplay in the traditional tower defence genre. You must protect your base from waves of approaching enemies. Build and improve your towers and units and destroy your enemies in any way you can. Don't be weak, destroy them all, show who's in charge! AOD: Art Of Defense is a game developed and published by . Released on December 01st 2020 has received 376 reviews of which 294 were positive and 82 were negative resulting in a rating of 7.4 out of 10. The game currently holds the #8 spot among the most played rts games.
7.4
294
82
16
players
9. Planet S
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 game developed and published by . Released on October 28th 2023 has received 2,630 reviews of which 2,407 were positive and 223 were negative resulting in a rating of 8.8 out of 10. The game currently holds the #9 spot among the most played rts games.
8.8
2,407
223
13
players
10. Warzone 2100
In the late 21st century, the world's civilizations are wiped out by a series of nuclear strikes, seemingly caused by a massive malfunction of the new NASDA (North American Strategic Defense Agency) strategic defense system. Warzone 2100 is a game developed and published by . Released on February 18th 2020 has received 1,500 reviews of which 1,355 were positive and 145 were negative resulting in a rating of 8.6 out of 10. The game currently holds the #10 spot among the most played rts games.
8.6
1,355
145
13
players
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