Sum

Sum is a combat-free, 2D side-scrolling puzzle game in which you explore rooms and use cards to progress. You observe environmental clues and decide which card to play, and when. Timing and the order of your plays matter as you experiment with different sequences.

Card puzzles

Cards have different effects and act as tools for solving puzzles. There are no enemies or health bars; the focus is on your deck, logic and experimentation.

Presentation and replay

The game uses pixel art, moody lighting and jazz-themed soundscapes, with a jazz bar aesthetic. Optional time trials and randomized card draws offer varied experiences.