A downloadable game for Windows and macOS

Buy Now$7.99 USD or more

You are bacteria, lost in the human bloodstream. Explore, fight, and uncover the mystery of your new home to the beat of the heart.

In biorhythm, you play as bacteria lost in the human body. As the heart beats, everything in the body moves to the rhythm. You'll swim through the bloodstream to the beat, exploring, fighting other microbes, and duplicating yourself as you go.

As the progression of your lifecycle weakens the body, you'll face terrifying challenges; hungering white blood cells, intense fever, and, in the end, the other copies of yourself.

The game runs 2.5 - 3 hours. It features hand-painted art, an orchestral score, and a thrilling story. Downloads thru Itch are DRM free.

  • Grow a swarm of bacteria and explore the human body at a microscopic scale.
  • Encounter strange microbes & fearsome white blood cells.
  • Live as an outsider in a vast, incomprehensible system.

The OST is available for free download!

Created by Brady Soglin. Art by Anna Cich & Jackie Lombard. Sounds by Dylan Payne & Bobby Volpendesta.

StatusIn development
PlatformsWindows, macOS
Publisheroverfull LLC
Release date Aug 23, 2019
Authorbrady soglin
GenreRhythm, Action
Made withUnity
Tags2D, Meaningful Choices, Multiple Endings, Mystery, Story Rich
Average sessionAbout an hour
InputsKeyboard, Mouse
AccessibilityConfigurable controls, Interactive tutorial
LinksSteam, Steam, Twitter


Buy Now$7.99 USD or more

In order to download this game you must purchase it at or above the minimum price of $7.99 USD. You will get access to the following files:

biorhythm.app 296 MB
biorhythm.exe 291 MB

Leave a comment

Log in with itch.io to leave a comment.