Cosmobreeder Yiffai FAQ Cosmobreeder Yiffai Game Walkthrough Wiki

1 What is the premise

The setting is an age of faster than light travel and advanced cyber-robotics, in which explorers known as Cosmobreeders visit forgotten worlds and study the alien creatures living there. It is a job, not a war.

You play a lone Cosmobreeder shot down over Planet Tutone, a world fallen to ruin and haunted by an ancient betrayal. Your comrades have been captured and your equipment has been stolen, so you begin with your wits and nothing else.

Alongside your stolen equipment you uncover alien artifacts and awaken mysterious ESPer abilities, so the toolkit grows beyond what you originally arrived with.

2 How big is the world

Tutone is described as hundreds of intricate rooms across three named kinds of territory: ancient service tunnels, eerie alien forests, and deep volcanic caverns.

Two details tell you how the map is meant to be played. Fragile walls hide secrets, and hidden paths reward the curious. That means the visible route is not the whole route, and a wall that looks solid may not be.

3 Are you really alone

Mechanically yes, this is a single player game. Narratively the developers make a point of the opposite: you might be on a solo mission, but you are never lonely.

A support team is a radio call away. You can contact Mauser, Tomcat or Bossu for guidance, for banter, and for intel on every enemy or item you discover. That last function is the interesting one, because it makes the radio a working encyclopedia rather than only flavour.

There are also other people on the planet. Every rescued Cosmobreeder has a story to tell, and you meet shopkeepers and other denizens of Tutone with whom you can barter for information or equipment.

4 How much content is there

Sixty achievements is a large number for a 200 megabyte pixel art game, and in a metroidvania that usually maps onto discoveries rather than onto story beats.

The content the store names supports that reading: hundreds of rooms, over a hundred hidden things to find in the form of secrets and hidden paths, dozens of unique foes, epic bosses, and dozens of hand crafted pixel art cutscenes.

Progression is the familiar loop of the genre. Each boss victory grants a new ability and lets you delve deeper into Tutone, which in turn makes earlier areas partly re-explorable.

5 Languages and requirements

It is developed and published by KEMOSHOCO, released on 24 April 2025, Windows only and single player. Full controller support is offered and a gamepad is explicitly recommended, with DualShock recognised. Steam Cloud saves and Family Sharing are included, and there are no paid add-ons and no demo.

The recommended column on the store page contains only the note that a 64-bit processor and operating system are required, with no hardware listed at all. We are reporting it as written; in practice the minimum row is the whole specification, and it is a very low one.