Check out this fantastic list of free-to-play rts games you can enjoy on Steam right now, updated on May 20th 2026. Looking for even more free titles? Explore the complete list of the best free to play rts games on Steam.
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1. Summoners War
A global hit RPG that captured the Summoners all around the world! Jump into the Sky Arena, a world under battle over the vital resource: Mana Crystals. Design your own deck and strategy using 1,000 Monsters to claim victory. Go on an epic adventure with your Monsters! Summoners War is a rpg, strategy and turn-based strategy game. Released on January 07th 2024 has received 10,282 reviews of which 7,357 were positive and 2,925 were negative resulting in a rating of 7.0 out of 10. The game has hit the top spot as the #1 most played rts game, thanks to its 7,294 peak concurrent players over the last day.
7.0
7,357
2,925
7,294
players
2. 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 strategy, base-building and rts game. 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. While seeing 3,187 players online at once in the last 24 hours, this game is currently ranked #2 among rts games based on player count.
8.3
40,941
7,401
3,187
players
3. 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 strategy, base-building and rts game. 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 327 players online at once in the last 24 hours, this game is currently ranked #3 among rts games based on player count.
8.4
18,745
3,109
327
players
4. 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 multiplayer, strategy and rts game. Released on August 15th 2023 has received 6,628 reviews of which 4,611 were positive and 2,017 were negative resulting in a rating of 6.8 out of 10. With 193 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played rts games.
6.8
4,611
2,017
193
players
5. 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 strategy, rts and indie game. 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 109 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played rts games.
9.0
3,678
244
109
players
6. Hades' Star
A unique space strategy game where thousands of players participate in one shared galaxy. Hades' Star is a space, strategy and massively multiplayer game. 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 #6 spot among the most played rts games.
7.1
1,874
703
88
players
7. 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 strategy, rts and massively multiplayer game. 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 #7 spot among the most played rts games.
8.1
2,766
540
73
players
8. Diplomacy is Not an Option: Shareware
Diplomacy is Not an Option: Shareware is a free prequel to the original game. In a medieval fantasy world, you are to build settlements, raise huge armies, and defend against massive hordes of enemies. Learn how Ironbrow clan shaped the world's map the first time - if you survive, that is. Diplomacy is Not an Option: Shareware is a strategy, city builder and colony sim game. Released on April 30th 2025 has received 672 reviews of which 617 were positive and 55 were negative resulting in a rating of 8.6 out of 10. The game currently holds the #8 spot among the most played rts games.
8.6
617
55
43
players
9. 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 strategy, multiplayer and mechs game. 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 #9 spot among the most played rts games.
8.2
8,984
1,695
28
players
10. 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 strategy, city builder and multiplayer game. Released on October 28th 2023 has received 2,846 reviews of which 2,607 were positive and 239 were negative resulting in a rating of 8.8 out of 10. The game currently holds the #10 spot among the most played rts games.
8.8
2,607
239
17
players
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