Solar Plexus is a puzzle platformer created by the developer of the Noitu Love series, where you are in control of a female protagonist sent to investigate the sudden communication silence from a certain space colony. Most of the challenges in the game require the player to manipulate blocks using the mouse and navigate around obstacles placed deliberately to hinder their progress forward.

Weapon ammo is limited to just fifty shells as well, but you can replenish this stock by left-clicking on ammunition blocks resting somewhere in most levels. Some doors will only open after you've placed purple blocks in specially marked areas, while other locations are only accessible by creating your own platforms with the blocks.

This is an unfinished version of the full game, containing nine levels to play in total. Joakim has no plans to continue developing it, and is considering the project an abandoned one.