Check out this fantastic list of free-to-play action rts games you can enjoy on Steam right now, updated on May 30th 2026. Looking for even more free titles? Explore the complete list of the best free to play action rts games on Steam.
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1. Crystal Clash
Crystal Clash is a mix of Lane Battles and Deckbuilding - with action-packed tug-of-war strategy, just like your favorite RTS mods from back in the day! :) Play 2v2 or co-op with a friend, or pair up with new allies and enemies! Collect cards, build your decks and have fun crushing your enemies! Crystal Clash is a action rts, tower defense and casual game. Released on January 14th 2022 has received 1,374 reviews of which 1,138 were positive and 236 were negative resulting in a rating of 7.9 out of 10. The game currently holds the #1 spot among the most played action rts games.
7.9
1,138
236
6
players
2. Crustacean Nations
🦀Crustacean Nations🦀 is a real-time strategy game about total crab warfare. Build a sprawling sand castle and amass huge armies to dominate the beach and become the one true crustacean nation! Crustacean Nations is a strategy, casual and action rts game. Released on August 19th 2022 has received 511 reviews of which 472 were positive and 39 were negative resulting in a rating of 8.6 out of 10. The game currently holds the #2 spot among the most played action rts games.
8.6
472
39
2
players
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