Free games like StellarHub
Below are 8 free-to-play Steam games similar to StellarHub, 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 StellarHub page.
Ranked picks
- 1

The Riftbreaker: Prologue
Free-to-play alternative to StellarHub — no purchase or trial window.
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

Fallout Shelter
Free-to-play alternative to StellarHub — no purchase or trial window. Shares Simulation with StellarHub.
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.
- 3

Kingdom: Classic
Free-to-play alternative to StellarHub — no purchase or trial window. Shares Simulation with StellarHub.
Kingdom is a 2D sidescrolling strategy/resource management hybrid with a minimalist feel wrapped in a beautiful, modern pixel art aesthetic.
- 4

Upload Labs
Free-to-play alternative to StellarHub — no purchase or trial window. Shares Simulation with StellarHub.
A sci-fi management game where you build and optimize your computer's system from the ground up. Connect and configure interconnected nodes to efficiently download, process, and upload files. Manage your setup, solve system challenges, and become the ultimate system architect
- 5

Ocean World: Eden Crafters Prologue
Free-to-play alternative to StellarHub — no purchase or trial window. Shares Simulation with StellarHub.
Survive, craft, and automate in this free prologue set on one of the planets you can transform in Eden Crafters, an open-world game where you play solo or with friends to turn a hostile planet into a habitable haven for humanity.
- 6

Plasma
Free-to-play alternative to StellarHub — no purchase or trial window. Shares Simulation with StellarHub.
Plasma is a pure engineering sandbox. Use advanced visual programming and robotics tools to create anything you can imagine.
- 7

Oxygen: First Breath
Free-to-play alternative to StellarHub — no purchase or trial window. Shares Simulation with StellarHub.
This is a free version of Oxygen, featuring the first 50 game-days. Build your city around the Oxygen Center and ensure your people's survival in a post-apocalyptic future, threatened by crack explosions, deadly winds, droughts and frosts. Lead your people and keep the Oxygen Center running!
- 8

Sunset Motel: Prologue
Free-to-play alternative to StellarHub — no purchase or trial window. Shares Simulation with StellarHub.
Sunset Motel: Prologue is a free motel management game. Ensure customer satisfaction, renovate interiors, design entertainment spaces! Manage your motel in your own style and provide travelers with unforgettable experiences!