Single-player games like Biolum
Below are 9 single-player Steam games similar to Biolum, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Biolum page.
Ranked picks
- 1
Red Matter 2
Single-player alternative to Biolum — playable solo, no multiplayer required. Shares Action and Indie with Biolum.
Red Matter 2 is an immersive, puzzle-adventure game that will transport you to the far reaches of space. Step into the shoes of Sasha, an agent awakened in a lunar base by an undercover operative and tasked with uncovering the secrets of the mysterious Red Matter.
- 2
Gloomy Eyes VR
Single-player alternative to Biolum — playable solo, no multiplayer required. Shares Adventure and Casual with Biolum.
With the voice of Colin Farrell, Gloomy Eyes narrates the story of the sun who got tired of the humans and decided to hide and never rise again. Gloomy Eyes is an animated VR-series in 6DoF & 3D real-time.
- 3
FREEDIVER: Triton Down
Single-player alternative to Biolum — playable solo, no multiplayer required. Shares Indie and Adventure with Biolum.
Plunge into VR on a capsizing research ship, the Triton, where survival means outmaneuvering the water's lethal surge. Freedive through a sinking ship, overcome underwater chaos, and unlock your path to the surface, all while protecting your most precious resource: the breath in your lungs.
- 4
Barotrauma
Single-player alternative to Biolum — playable solo, no multiplayer required. Shares Action and Indie with Biolum.
Barotrauma is a 2D co-op submarine simulator – in space, with survival horror and RPG elements. Steer your submarine, complete missions, fight monsters, fix leaks, operate machinery, man the guns and craft items, and stay alert: danger in Barotrauma doesn’t announce itself!
- 5
Time Machine VR
Single-player alternative to Biolum — playable solo, no multiplayer required. Shares Indie and Adventure with Biolum.
You are a time traveller tasked with exploring the Jurassic era and the creatures that once ruled the prehistoric oceans. Use an array of advanced tech tools to track, examine, and discover the scientific secrets of mosasaurs, livyatans, and megalodons, among others!
- 6
theBlu
Single-player alternative to Biolum — playable solo, no multiplayer required. Shares Indie and Adventure with Biolum.
Experience the wonder and majesty of the ocean through a series of habitats and come face to face with some of the most awe inspiring species on the planet.
- 7
Subnautica
Single-player alternative to Biolum — playable solo, no multiplayer required. Shares Indie and Adventure with Biolum.
Descend into the depths of an alien underwater world filled with wonder and peril. Craft equipment, pilot submarines and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more - all while trying to survive.
- 8
Half-Life: Alyx
Single-player alternative to Biolum — playable solo, no multiplayer required. Shares Action and Adventure with Biolum.
Half-Life: Alyx is Valve’s VR return to the Half-Life series. It’s the story of an impossible fight against a vicious alien race known as the Combine, set between the events of Half-Life and Half-Life 2. Playing as Alyx Vance, you are humanity’s only chance for survival.
- 9
Inua - A Story in Ice and Time
Single-player alternative to Biolum — playable solo, no multiplayer required. Shares Indie and Adventure with Biolum.
Inua is a narrative game in which three protagonists have their destinies intertwined decades apart in the same locations in the far north. Explore each era, collect ideas and manipulate their minds to change the course of history.