Free to Play Action RTS Games on Steam
Check out this fantastic list of free-to-play action rts games you can enjoy on Steam right now, updated on September 14th 2025. Looking for even more free titles? Explore the complete list of the best free to play action rts games.
Lists & Categories
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 game developed and published by . Released on January 14th 2022 has received 1,343 reviews of which 1,112 were positive and 231 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
1,112
231
4
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 game developed and published by . Released on August 19th 2022 has received 476 reviews of which 442 were positive and 34 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
442
34
3
players
More Action RTS & Related Games
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