Shoot squishy blobs down onto the stack with the goal of merging as many as you can for ever-bigger blobs and the high score. There is some strategy and skill in how you play. Shoot blobs hard to push others and cram them into tight squeezes, or shoot softly to carefully position them and not disturb the rest.

The demo is free and the full game is paid, both on Steam, for Windows and Linux. There is also a browser demo on itch.io, and a mobile version is planned after launch. sobosuba is made and published by keepeetron: this site, the Steam page and the itch.io page are its only official homes, and other sites or apps using the sobosuba name have nothing to do with the game.