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 - Players say: Lead a squad of tiny explorers through miniature worlds, collecting clues and materials, battling creatures, and crafting a life in town. Players like: Miniature World Art · Relaxed Exploration · Outfit Customization ·
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Tiny Miniature World Cozy Light Social Grand Open Adventure Hello! Let's explore the OverField together!

Diplomacy is Not an Option: Shareware - Players say: As Duncan Ironbrow, build a medieval settlement, grow its economy and army, and hold your castle against enemy waves. Players like: City-Building Defense · Tactical Base Planning · Hard-Won Victories ·
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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.

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Apr 30, 2025
92% 👍
of 826
Crustacean Nations - Players say: Build a crab beach fortress, gather resources and command specialized units in real-time battles against rival colonies. Players like: Crab-Themed Strategy · Cute Visuals · Casual Fun ·
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🦀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!

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Aug 19, 2022
93% 👍
of 530
Slava Ukraini! - Players say: Choose battles across a map of Ukraine, then fight brief, stationary first-person missions to ambush columns and defend positions. Players like: Strategic Map · Simple Battles · Ukraine Tribute ·
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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.

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May 23, 2022
71% 👍
of 1.6k
Citywars Tower Defense - Players say: Fight on the front line as you gather and craft, build towers, and defend a crystal from waves of monsters. Players like: Unusual Genre Blend · Co-op Teamwork · Tower Variety ·
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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.

Crystal Clash - Players say: Build a two-Legion card deck, summon units and cast spells along a lane, then break through defenses to destroy the enemy crystal. Players like: Tactical Deckbuilding · Unit Placement And Timing · Distinct Legion Strategies ·
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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!

SpellForce 3 Versus Edition - Players say: Build an army, develop a hero, and face AI skirmishes or ranked and unranked one-on-one battles in a fantasy RTS. Players like: RTS-RPG Blend · Hero Builds · Challenging AI ·
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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.

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Nov 3, 2020
75% 👍
of 1.6k
Conqueror's Blade - Players say: Create a medieval commander, fight on the front line, and lead specialized troops through online sieges and territory wars. Players like: Large-Scale Battles · Tactical Unit Command · Team Coordination ·
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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!

Spellsworn - Players say: Spellcasters duel in shifting arenas, buying and upgrading spells between rounds to outplay rivals alone or in teams. Players like: Fun With Friends · Spell Build Variety · Chaotic Party Battles ·
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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!

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Mar 13, 2018
89% 👍
of 1.5k
Strife® - Players say: Choose a hero in a five-player team MOBA, push three lanes toward the enemy Crux, and use pets, crafting, and couriers. Players like: Enjoyable MOBA Matches · Nostalgic Appeal · Lightweight Feel ·
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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.

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May 22, 2015
77% 👍
of 4.9k
Command & Conquer 3 Tiberium Wars™ - Players say: Lead GDI, Nod, or the Scrin in a 2047 RTS of Tiberium harvesting, base construction, and faction-driven campaigns. Players like: Campaign Story · Live-Action Scenes · Faction Variety ·
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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

Empires Mod - Players say: In a two-faction war, command a team from above or fight on foot, using classes, vehicles, and base-building tactics. Players like: FPS-RTS Blend · Distinct Team Roles · Tactical Teamwork ·
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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.

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Jul 28, 2008
87% 👍
of 1.1k