COGEN: Sword of Rewind / COGEN: 大鳥こはくと刻の剣

A side-scrolling action-platformer where you rewind time after fatal hits

Gemdrops, Inc. · Released Jan 26, 2022

Reviews: Mixed; 69% of 121
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Verified
Last update on Steam: 1 year ago; Oct 3, 2025
Minimum PC: HD 620; 8 GB RAM; Full requirements

What is COGEN: Sword of Rewind / COGEN: 大鳥こはくと刻の剣?

In this single-player 2D action-platformer, Kohaku explores the ruins of Cogen City with a talking sword to uncover what happened to her home. You fight enemies and navigate traps; every hit is fatal, but you can rewind up to three seconds to try again.

For you if...

+you enjoy combining sword attacks, dashes, and double jumps
+you like replaying stages to improve your performance

Not for you if...

−you prefer forgiving platforming over repeated trial and error

What players say

69% of 121 reviews are positive

Players praise the rewind mechanic and soundtrack, but criticize frustrating level design. A recurring complaint is that the campaign is too short for the price.

Screenshots and trailer

COGEN: Sword of Rewind / COGEN: 大鳥こはくと刻の剣 screenshot 1

COGEN: Sword of Rewind / COGEN: 大鳥こはくと刻の剣 system requirements

Minimum: HD 620, 8 GB RAM.

As published by the developer.

Can my PC run COGEN: Sword of Rewind / COGEN: 大鳥こはくと刻の剣?

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Minimum

OS: Windows 10
Processor: core i5-7200U
Graphics: Intel HD Graphics 620
Memory: 8 GB RAM

Does COGEN: Sword of Rewind / COGEN: 大鳥こはくと刻の剣 have co-op or multiplayer?

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

Single-player

Does COGEN: Sword of Rewind / COGEN: 大鳥こはくと刻の剣 run on Steam Deck?

Verified Yes, Verified by Valve: it works on Steam Deck out of the box.

All functionality is accessible with the default controller configuration
Shows Steam Deck controller icons
In-game text is legible on Steam Deck
Default graphics settings perform well on Steam Deck
External controllers are not supported for the primary player

PC version details

DRM: None declared on Steam
Controller: Full controller support
Platforms: Windows
Achievements: 39
Steam features: Cloud saves, Family Sharing
Languages: Full audio: Japanese. Text only: English, Simplified Chinese, Traditional Chinese, Korean, Spanish - Spain, Portuguese - Brazil.

Does COGEN: Sword of Rewind / COGEN: 大鳥こはくと刻の剣 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