Free games like Gates of Horizon
Below are 14 free-to-play Steam games similar to Gates of Horizon, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Gates of Horizon page.
Ranked picks
- 1
Aircar
Free-to-play alternative to Gates of Horizon — no purchase or trial window. Shares Indie with Gates of Horizon.
A simple immersive flying game built for VR. Pilot an aircar through a futuristic cityscape.
- 2
The Riftbreaker: Prologue
Free-to-play alternative to Gates of Horizon — no purchase or trial window. Shares Strategy and Indie with Gates of Horizon.
The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.
- 3
Totally Accurate Battlegrounds
Free-to-play alternative to Gates of Horizon — no purchase or trial window. Shares Indie with Gates of Horizon.
Grab your balloon crossbow and trusty inflatable hammer, because things are about to get wobbly! Be the last weirdo standing in the world-leading physics-based Battle Royale game.
- 4
PlanetSide 2
Free-to-play alternative to Gates of Horizon — no purchase or trial window. Shares Massively Multiplayer with Gates of Horizon.
PlanetSide 2 is an all-out planetary war, where thousands of players battle as one across enormous continents. Utilize infantry, ground and air vehicles, and teamwork to destroy your enemies in this revolutionary first-person shooter on a massive scale.
- 5
Cell to Singularity - Evolution Never Ends
Free-to-play alternative to Gates of Horizon — no purchase or trial window. Shares Simulation with Gates of Horizon.
The epic story of evolution, technology, humanity, and dinosaurs is yours to tap.
- 6
Moonbase Alpha
Free-to-play alternative to Gates of Horizon — no purchase or trial window. Shares Strategy and Simulation with Gates of Horizon.
NASA has once again landed on the lunar surface with the goal of colonization, research, and further exploration. Shortly after the return to the Moon, NASA has established a small outpost on the south pole of the moon called Moonbase Alpha.
- 7
MechWarrior Online™ Legends
Free-to-play alternative to Gates of Horizon — no purchase or trial window. Shares Strategy and Simulation with Gates of Horizon.
MechWarrior Online™ Legends is a tactical, 'Mech-based online shooter set in the vast BattleTech Universe. Assume the role of an elite MechWarrior, piloting powerful BattleMechs, fighting for supremacy over the Inner Sphere.
- 8
Learn to Fly 3
Free-to-play alternative to Gates of Horizon — no purchase or trial window. Shares Strategy and Indie with Gates of Horizon.
Build your spaceship from scratch, earn funds and invest them into building a bigger, better spaceship as you try and fly your way up to space!
- 9
Foundation: Galactic Frontier
Free-to-play alternative to Gates of Horizon — no purchase or trial window. Shares Strategy and Simulation with Gates of Horizon.
Command Asimov's OFFICIAL Foundation universe! Live the life as an interstellar trader to exploit your trade routes! Build your starship home, crush enemies in explosive shootouts & outsmart rivals with fleet strategies in epic space wars - with new content expanding your saga!
- 10
Veyrasol
Free-to-play alternative to Gates of Horizon — no purchase or trial window. Shares Strategy and Massively Multiplayer with Gates of Horizon.
Veyrasol is a real-time MMO strategy game set in the Veyra Spiral galaxy. Build colonies, command fleets, forge alliances, and battle for dominance across ~120-day seasons in this free-to-play browser-born strategy experience.
- 11
Gods and Idols
Free-to-play alternative to Gates of Horizon — no purchase or trial window. Shares Strategy and Indie with Gates of Horizon.
Take the role of a newly ascended deity in Gods and Idols. Carve your place among the stars in an open, dynamic, and massive MMORTS universe. Command the powers of the cosmos, form alliances, and use your worshipers as instruments to further your goals.
- 12
Nexus Legacy
Free-to-play alternative to Gates of Horizon — no purchase or trial window. Shares Strategy and Indie with Gates of Horizon.
Rebuild civilization from a single planet in Nexus Legacy, a persistent sci-fi 4X MMO. Colonize worlds, manage resources, research technologies, command fleets, forge alliances, and fight for control of a living galaxy.
- 13
Nova: Space Armada
Free-to-play alternative to Gates of Horizon — no purchase or trial window. Shares Strategy and Massively Multiplayer with Gates of Horizon.
An exceptional sci-fi strategy game based on space adventure as its core.
- 14
Pixel Starships
Free-to-play alternative to Gates of Horizon — no purchase or trial window. Shares Strategy and Indie with Gates of Horizon.
Pixel Starships is an FTL-style online sci-fi strategy builder and management game with a competitive PVP tournament. Set in the retro galaxy, your role is to explore space, meet aliens, and develop your ship, crew and AI. The game contains deep strategic and 4x elements. PSS is community-driven.