This game was made in about 12 hours for the Game Makers Toolkit Gamejam 2019.

Unibility is a simple puzzle-platformer where can only hold 1 ability at a time, so you have to swap them out as needed.


Design/Programming/Most things - Sam Tregillus - @thesambassador
Music -
Art Assets -

V1 - GMTK 2019 Jam submission build - 8 levels, no menu
V1.1 - Updated build, 10 levels, menu to let you resume where you left off

Install instructions

download, unzip, and run Unibility.exe


Download 19 MB
Download 20 MB


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Follows a familiar platformer formula but stands out for great level design and take on the game jam's "only one" theme. Tutorial levels start out simple but the fun quickly ramps up. Quit reading reviews and go play it!

P.S. - Had some technical issues with keybind conflicts and my browser/extensions but downloading worked great. 


This game was awesome. It took me a while to figure out that second to last level. Juggling the location of the power-ups turned out to be much more important than I thought.

Cool game!


Glad you liked it!  I may update it eventually and add another 7-12 levels depending on how I'm feeling!