S.U.M: Slay Uncool Monsters is a quirky little educational-puzzle game from developer and producer Doomster Entertainment.
In S.U.M, you take on the roll of a hero in a world filled with uncool monsters, where you must vanquish them by using the power of Math! Each dungeon you go through will challenging you with addition, subtraction, multiplication, division, or some combination of these problems to solve. The monster will provide you with a sum, and your task will be to fill in the equation with the correct numbers at your disposal. Throw in some special attacks, depending on your character class, to provide a bit of extra tactics on top, and you will need to use all of your mathematical skills to slay these uncool monsters!
S.U.M is actually free to play, with most monetary support coming in the form of downloadable content for new characters and worlds to go through. S.U.M is available for phones via Android, as well as the PC and Nintendo Switch.