Biphase

A puzzle platformer where jumping changes which platforms you can use

Seasun Seed · Released Mar 29, 2021

Adventure Casual Indie Strategy Free To Play

Reviews: Very Positive; 96% of 331
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 5 years ago; Jul 14, 2021
Minimum PC: 2 GB disk; Full requirements

What is Biphase?

Biphase is a free, single-player 2D puzzle platformer about a protagonist with bipolar disorder navigating an abstract red-and-black world. You move, jump, and operate switches to reach each level's exit. Jumping swaps the background color: objects matching it become non-interactive, while those in the contrasting color become usable.

For you if...

+you prefer short games you can finish in one sitting

Not for you if...

−you want action-focused platforming rather than stopping to solve puzzles

What players say

96% of 331 reviews are positive

Players praise the minimalist visuals, puzzle progression, and portrayal of bipolar disorder. Some report getting stuck on difficult stages.

Screenshots and trailer

Biphase system requirements

Minimum: 2 GB of disk space.

As published by the developer.

Can my PC run Biphase?

The published requirements do not name a graphics card we can compare.

Set up my PC →

Minimum

OS: Windows 7 (SP1+) and Windows 10, 64-bit versions only.
Processor: X64 architecture with SSE2 instruction set support
Storage: 2 GB available space
DirectX: Version 10

Does Biphase have co-op or multiplayer?

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

Single-player

Does Biphase 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
Steam features: Family Sharing
Languages: Text only: English, French, Italian, German, Spanish - Spain, Japanese, Traditional Chinese, Korean, Polish.

Does Biphase 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