Free games like Quantum Odyssey
Below are 8 free-to-play Steam games similar to Quantum Odyssey, 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 Quantum Odyssey page.
Ranked picks
- 1
Helltaker
Free-to-play alternative to Quantum Odyssey — no purchase or trial window. Shares Indie with Quantum Odyssey.
Helltaker is a short game about sharply dressed demon girls.
- 2
Steam Engine Simulator
Free-to-play alternative to Quantum Odyssey — no purchase or trial window. Shares Simulation with Quantum Odyssey.
The Steam Engine Simulator shown on AngeTheGreat's YouTube channel.
- 3
The Lab
Free-to-play alternative to Quantum Odyssey — 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!
- 4
Z.A.T.O. // I Love the World and Everything In It
Free-to-play alternative to Quantum Odyssey — no purchase or trial window. Shares Indie with Quantum Odyssey.
USSR, 1986. A girl goes missing in the closed city of Vorkuta-5, yet not a soul seems to be concerned. Uncover the mystery behind her disappearance and transmit your signal to the universe.
- 5
The Children of Clay
Free-to-play alternative to Quantum Odyssey — no purchase or trial window. Shares Indie and Simulation with Quantum Odyssey.
The Children of Clay is a short stop motion archeology horror game, where you have to study an ancient artefact and discover its dark secret.
- 6
Aircar
Free-to-play alternative to Quantum Odyssey — no purchase or trial window. Shares Indie with Quantum Odyssey.
A simple immersive flying game built for VR. Pilot an aircar through a futuristic cityscape.
- 7
South Scrimshaw, Part One
Free-to-play alternative to Quantum Odyssey — no purchase or trial window. Shares Indie with Quantum Odyssey.
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.
- 8
D1AL-ogue
Free-to-play alternative to Quantum Odyssey — no purchase or trial window. Shares Indie with Quantum Odyssey.
Become an android repair technician in a cyberpunk city where the sun never rises. Rotate the unique circular puzzle 'D1AL' and merge modules to fix their broken bodies and hearts. Your precise repair is the conversation starter. Turn the dial and listen to their stories.