Cosmobreeder Yiffai

Cosmobreeder Yiffai

Released Apr 2025

Travel to a forgotten world and study alien creatures in this authentic retro metroidvania!

84% positive · 174 reviews
Done
All announced content has been released
High confidence
Done
All announced content has been released
High confidence

Where to buy

Steam $14.99
Can't confirm — worth a look
We couldn't confirm these stores carry this game.
Green Man Gaming Steam key Search IndieGala Steam key Search
Prices in USD, as listed by each store.
Buying through an affiliate store helps support the site

Evaluation

Cosmobreeder Yiffai launched on April 24, 2025 as a complete retro metroidvania. The developer, KEMOSHOCO, has not announced any DLC, expansions, or post-launch content of any kind. The store description presents the game as a self-contained adventure with no indication of future content additions. Since launch, the developer has published three patches (through May 22, 2025) focused entirely on bug fixes — resolving a final boss softlock, physics issues, a timing bug, and minor menu corrections. There are no unreleased DLC listings, no roadmap, and no developer statements about planned future content. The game appears to have shipped as a finished product.
Evidence
Store description presents a fully self-contained metroidvania with no mention of DLC, expansions, or post-launch content plans
store metadata · Apr 24, 2025 source ambiguous
medium
Patch 1.0.5 fixed a persistent softlock on the final boss with automatic save file repair — pure bug fix, no new content
news post · May 22, 2025 source ambiguous
low

Media

Details

Developer
Publisher
KEMOSHOCO
Achievements
60
Platform
Windows
Controller
full support
Steam Deck
Verified
Players
Single-player

About this game

In an age of faster-than-light travel and advanced cyber-robotics, brave explorers known as Cosmobreeders travel to forgotten worlds and study alien creatures.

Play as a lone Cosmobreeder shot down over Planet Tutone, a world fallen to ruin and haunted by ancient betrayal. Your comrades have been captured, your equipment stolen. Armed with only your wits, traverse ancient service tunnels, eerie alien forests, and deep volcanic caverns. Reclaim your gear, uncover alien artifacts, and awaken mysterious ESPer abilities to survive the planet’s numerous dangers.

Navigate hundreds of intricate rooms, in which fragile walls hide secrets and hidden paths reward the curious. Battle dozens of unique foes and conquer epic bosses, each victory granting new abilities and allowing you to delve deeper into Tutone.

You might be on a solo mission, but you’ll never be lonely! Every rescued Cosmobreeder has a story to tell, and your support team is just a radio call away. Call up Mauser, Tomcat, or Bossu for guidance, banter, and intel on every enemy or item you discover! Meet shopkeepers and other denizens of Tutone, barter for info or equipment.

Unravel the story through dozens of hand-crafted pixel art cutscenes. Will you uncover the planet’s mysteries, or fall in battle and be captured like your comrades?

Last evaluated Jun 18, 2026
Something about this evaluation looks wrong Report illegal or harmful content