Top-Rated Free Action RTS Games on Steam
12 free Action RTS games with 500+ reviews and a 70%+ positive rating, newest first.
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OverField - Tiny Miniature World Cozy Light Social Grand Open Adventure Hello! Let's explore the OverField together!
Nov 8, 2025
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.
Apr 30, 2025
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!
Aug 19, 2022
Slava Ukraini! - A completely free game of heroic defence against enemy aggression. Take part in the defence of Ukraine against Russian aggression. A tribute to the courage and valor of the Ukrainian armed forces.
May 23, 2022
Citywars Tower Defense - Citywars TD is a cute multiplayer third person Survival Tower Defense. Build towers, gather resources, craft tools, upgrade weapons, level up buildings, expand your city with your friends and work under pressure before the next incoming wave of monsters.
Mar 3, 2022
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!
Jan 14, 2022
SpellForce 3 Versus Edition - The SpellForce 3: Versus Edition gives you the chance to enter the battlefields of Eo for free, letting you test your RTS skills against AI opponents or even other human players.
Nov 3, 2020
Conqueror's Blade - Master the art of siege tactics in Conqueror's Blade, a tactical action MMO brought to you by Booming Tech. Create your hero, command medieval units, and ride out for epic online battles in a vast new world. Play for free today!
May 30, 2019
Spellsworn - Enter a world of magic and battle, where your wits and reflexes will be pushed to their limits! Choose your spells, enter the ever-changing arena and prepare to obliterate all who stand in your way!
Mar 13, 2018
Strife® - Strife® is a truly free to play, competitive, MOBA that features non-stop action and engaging combat. Take control of powerful and versatile heroes, each capable of dominating in unique ways, and exert your will in an epic battle between two teams.
May 22, 2015
Command & Conquer 3 Tiberium Wars™ - The year is 2047. A massive nuclear fireball explodes high in the night sky, marking the dramatic beginning of the Third Tiberium War and the long-awaited return of the most groundbreaking Real-Time Strategy franchise of all time
Nov 13, 2009
Empires Mod - Unique strategy/first person shooter mix: One commander on each team plays from above, choosing research, placing buildings and giving orders. The rest fill the role of soldiers on the ground, with four distinct classes to choose from and customizable vehicles to drive.
Jul 28, 2008
