Alternate

In Alternate, you play as Robert, a guy with some anxiety issues.

The main mechanic lies around your heartbeat, with each one of them changing your current dimension.

Alternate is a puzzle game where you can't fight back, so you'll have to use your best puzzle solving and platformer skills to overcome each level.

It's also open-source!

Git repository: vininew921/game_jams (github.com)