Sum Points is relaxing, soft puzzle game with clear, simple rules.
Game objective is to set value of Target tiles to zero by placing Num tiles in right positions. Blue round Num tiles decrease value of Target tiles in a diagonal directions from the point they placed. Red square ones subtract values in horizontal and vertical directions.
Z, Space, Backspace – Undo last move
R, Enter, Down – Restart Game
F1 – Show help (levels 1-7)
Esc – Main Menu
M, S – Music / Sound
L, Up – Select Level
Left, Right – Prev / Next Level