Free games like Imperium
Below are 8 free-to-play Steam games similar to Imperium, 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 Imperium page.
Ranked picks
- 1
The Lab
Free-to-play alternative to Imperium — no purchase or trial window.
Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!
- 2
Aircar
Free-to-play alternative to Imperium — no purchase or trial window. Shares Indie with Imperium.
A simple immersive flying game built for VR. Pilot an aircar through a futuristic cityscape.
- 3
South Scrimshaw, Part One
Free-to-play alternative to Imperium — no purchase or trial window. Shares Indie with Imperium.
South Scrimshaw is the story of a newborn whale in a vast alien ocean. It is a richly illustrated experimental visual novel, written in the style of a nature documentary.
- 4
The Riftbreaker: Prologue
Free-to-play alternative to Imperium — no purchase or trial window. Shares Strategy and Indie with Imperium.
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.
- 5
Liquidators
Free-to-play alternative to Imperium — no purchase or trial window. Shares Indie and Simulation with Imperium.
Chernobyl, USSR, 1986. Three nuclear plant workers go on a daring mission to prevent a radioactive fallout that would affect half of Europe. Every moment is permanent, and all is at stake.
- 6
DFHack - Dwarf Fortress Modding Engine
Free-to-play alternative to Imperium — no purchase or trial window. Shares Strategy and Simulation with Imperium.
Extensions for Dwarf Fortress, including bugfixes, interface improvements, automation agents, design blueprints, modding building blocks, and other tools.
- 7
The Life and Suffering of Sir Brante — Chapter 1&2
Free-to-play alternative to Imperium — no purchase or trial window. Shares Strategy and Indie with Imperium.
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!
- 8
SCP – Containment Breach
Free-to-play alternative to Imperium — no purchase or trial window. Shares Indie with Imperium.
A procedural first-person horror adventure. You are on your own after something goes terribly wrong in this top-secret containment facility. Collect items to aid in your escape and try to uncover the truth, as horror lurks behind every door. Can you make it out alive?