Free games like Event Horizon
Below are 8 free-to-play Steam games similar to Event 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 Event Horizon page.
Ranked picks
- 1
Endless Sky
Free-to-play alternative to Event Horizon — no purchase or trial window. Shares Action and Indie with Event Horizon.
Endless Sky is a 2D space trading and combat game inspired by the classic Escape Velocity series. Work your way up from a relatively wimpy shuttle, cargo ship, or fighter, to a highly upgraded and customized flagship or to a massive fleet of warships or freighters.
- 2
Sunrider: Mask of Arcadius
Free-to-play alternative to Event Horizon — no purchase or trial window. Shares Indie and RPG with Event Horizon.
As Captain Kayto Shields, embark on a galactic voyage of heroism and survival. With his home world destroyed and his nation conquered, the inexperienced Captain Shields, and his newly minted vessel, the Sunrider, are left as the only hope against a galactic evil intent on subjugating all sentient life.
- 3
Destination Sol
Free-to-play alternative to Event Horizon — no purchase or trial window. Shares Action and Indie with Event Horizon.
Pilot your ship in the seamless open world made of space, planets, and more. Find new ships and equipment, find allies and beat all the enemies in this open source space shooter!
- 4
Gangs of Space
Free-to-play alternative to Event Horizon — no purchase or trial window. Shares Action and Indie with Event Horizon.
Gangs of Space is a massively-multiplayer Rogue Shmup where Gangs of players compete for the conquest of the galaxy.
- 5
Space Commander: War and Trade
Free-to-play alternative to Event Horizon — no purchase or trial window. Shares Action and Indie with Event Horizon.
Fight, explore the stars, trade, and lead your fleet across the galaxySpace Commander: War and Trade is an ultimate single player space-sim featuring spectacular graphics, intuitive combat and deep mechanics.
- 6
Zero Gravity
Free-to-play alternative to Event Horizon — no purchase or trial window. Shares Action and Indie with Event Horizon.
Zero Gravity is a beautiful first-person/third-person puzzle-platformer simulation game where you will undergo four types of game modes. (Zero Gravity is being recreated, find more info in the 'Early Access Description')
- 7
The Pirates of Sector 7
Free-to-play alternative to Event Horizon — no purchase or trial window. Shares Action and Indie with Event Horizon.
Seek adventure, fortune and fame in a sector of space riddled with faction conflict, dastardly pirates, & deft merchants.
- 8
Pirates of the Asteroid Belt
Free-to-play alternative to Event Horizon — no purchase or trial window. Shares Action and Indie with Event Horizon.
Role-play shooter in space. Your personal space adventure.