Bunker 21 Extended Edition

First-person action adventure with mutant fights and bunker mysteries

Garden of Dreams · Released Aug 1, 2023

Reviews: Very Positive; 92% of 59
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 3 years ago; Aug 11, 2023
Minimum PC: 1 GB; 4 GB RAM · 1 GB disk; Full requirements

What is Bunker 21 Extended Edition?

You play as Andrei in a single-player first-person action adventure, searching for answers after humanity vanishes. Across six chapters, you explore ruined locations and alternate dimensions, fight mutants and bosses, collect resources, solve puzzles, and find notes about the world's past.

For you if...

+you enjoy exploration and puzzles alongside fights against monsters

Not for you if...

−you want to fight without conserving ammunition

What players say

92% of 59 reviews are positive

Players praise the story and stylized graphics.

Screenshots and trailer

Bunker 21 Extended Edition system requirements

Minimum: 1 GB, 4 GB RAM, 1 GB of disk space.

As published by the developer.

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Minimum

OS: Win 7
Processor: Quad-core Intel / AMD processor, 2 GHz
Graphics: 1 GB
Memory: 4 GB RAM
Storage: 1 GB available space
DirectX: Version 12

Does Bunker 21 Extended Edition have co-op or multiplayer?

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

Single-player

Does Bunker 21 Extended Edition 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, macOS
Steam features: Family Sharing
Languages: Full audio: English, Russian.

Does Bunker 21 Extended Edition 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 28, 2026. How to filter AI games on Steam