Biomass

A 2D action RPG where choices shape a sinking city

Final Scene dev · Released Oct 12, 2020

Reviews: Very Positive; 80% of 105
Recent reviews: Not enough recent
Players: 1; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 5 years ago; Nov 8, 2020
Minimum PC: HD 520; 2 GB RAM · 2 GB disk; Full requirements

What is Biomass?

Biomass is a single-player, 2D action RPG set in a flooded world where most people live in three towers. You explore an interconnected city, encounter factions, and fight with melee weapons, firearms, and beam weapons as you travel toward the heart of a lighthouse.

For you if...

+you enjoy experimenting with weapons in fast combat
+you like piecing together cryptic science-fiction lore

Not for you if...

−you want relaxed combat rather than challenging boss fights
−you prefer self-contained levels over interconnected exploration

What players say

80% of 105 reviews are positive

Players praise the atmosphere and music. Recurring complaints concern unclear progression and tedious trips from checkpoints back to bosses.

Screenshots and trailer

Biomass system requirements

Minimum: HD 520, 2 GB RAM, 2 GB of disk space.

As published by the developer.

Can my PC run Biomass?

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Minimum

OS: Windows 7 or newer
Processor: Intel core i5-4210 1.7ghz
Graphics: Intel HD Graphics 520
Memory: 2 GB RAM
Storage: 2 GB available space
DirectX: Version 9.0

Does Biomass have co-op or multiplayer?

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

Single-player

Does Biomass run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Full controller support
Platforms: Windows
Achievements: 17
Steam features: Family Sharing
Languages: Text only: English.

Does Biomass 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