Free games like Deep Space Outpost
Below are 8 free-to-play Steam games similar to Deep Space Outpost, 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 Deep Space Outpost page.
Ranked picks
- 1
The Riftbreaker: Prologue
Free-to-play alternative to Deep Space Outpost — no purchase or trial window. Shares Strategy and Indie with Deep Space Outpost.
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.
- 2
The Last Sovereign
Free-to-play alternative to Deep Space Outpost — no purchase or trial window. Shares Strategy and Indie with Deep Space Outpost.
Explore a world torn between armies of lust and purity in which everything is more complex than it seems, deciding the fate of nations through might, politics, and finance. Every decision matters in an intricate saga that tracks thousands of variables.
- 3
The Life and Suffering of Sir Brante — Chapter 1&2
Free-to-play alternative to Deep Space Outpost — no purchase or trial window. Shares Strategy and Indie with Deep Space Outpost.
A narrative-driven hardcore RPG set in a gritty world where the gods are real. Set out on a challenging lifetime journey, where every choice you make has a price to pay and consequence to it. Will you become an inquisitor, a judge, or conspire against the old order? Dare to decide!
- 4
Totally Accurate Battlegrounds
Free-to-play alternative to Deep Space Outpost — no purchase or trial window. Shares Indie with Deep Space Outpost.
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.
- 5
Crusader Kings II
Free-to-play alternative to Deep Space Outpost — no purchase or trial window. Shares Strategy and Simulation with Deep Space Outpost.
Explore one of the defining periods in world history in an experience crafted by the masters of Grand Strategy.
- 6
AdVenture Capitalist
Free-to-play alternative to Deep Space Outpost — no purchase or trial window. Shares Indie with Deep Space Outpost.
Welcome, eager young investor, to AdVenture Capitalist! Arguably the world's greatest Capitalism simulator!
- 7
Supermarket Together
Free-to-play alternative to Deep Space Outpost — no purchase or trial window. Shares Indie and Simulation with Deep Space Outpost.
The multiplayer supermarket has arrived to your neighbourhood for free! Stock your shop space, unlock perks and franchises, hire employees or chase those pesky shoplifters. The more players, the more action!
- 8
Fallout Shelter
Free-to-play alternative to Deep Space Outpost — no purchase or trial window. Shares Simulation with Deep Space Outpost.
Fallout Shelter puts you in control of a state-of-the-art underground Vault from Vault-Tec. Build the perfect Vault, keep your Dwellers happy, and protect them from the dangers of the Wasteland.