Biolum

A VR sci-fi horror story about a deep-sea research mission

IKO, Reynard Films, Prefrontal Cortex · Published by Astrea · Released Dec 2, 2021

Reviews: Very Positive; 80% of 117
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 4 years ago; Jul 6, 2022
Minimum PC: GTX 1070; 16 GB RAM · 5 GB disk; Full requirements

What is Biolum?

This first-person, single-player narrative follows researcher Rachel on a linear underwater expedition guided by marine scientist Eva. You explore through light interactions that advance an investigation into a glowing parasite affecting marine life. The experience lasts about half an hour.

For you if...

+you enjoy eerie science fiction about strange marine life

Not for you if...

−you expect skill-based challenges and complex gameplay
−you want a lengthy campaign rather than a short experience

What players say

80% of 117 reviews are positive

Players praise the underwater atmosphere and visual design, while opinions on the voice acting vary. Common complaints concern restricted movement and sparse interaction; some players also criticize the dialogue, textures, and lack of collisions with scenery.

Screenshots and trailer

Biolum system requirements

Minimum: GTX 1070, 16 GB RAM, 5 GB of disk space.

As published by the developer.

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Minimum

OS: Windows 10
Processor: Intel i7-7700 / AMD Ryzen 7 1700X or equivalent
Graphics: Nvidia Geforce GTX 1070
Memory: 16 GB RAM
Storage: 5 GB available space
Notes: SSD recommended

Does Biolum have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does Biolum run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 12
Steam features: Family Sharing, VR
Languages: Full audio: English, French, Simplified Chinese.

Does Biolum use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam