Sum Fall

Sum Fall is played on a grid split by a centre row. Each turn you choose where to drop the next numbered piece in that row, and it falls either up or down; which way is part of the puzzle. Pieces carry a sign: green pieces add and red pieces subtract. When two touching pieces combine to 0 or 10, they both disappear and you score, and chains of these build a multiplier from 1.5x up to 5x.

The Daily Challenge is one handcrafted puzzle a day, the same for every player. You get a fixed set of pieces and must clear the board, which in the daily means destroying every golden cell, racing the clock for up to three stars. A calendar lets you replay past days, a streak counts the days in a row, and completing a whole month earns a trophy. Game Center keeps global leaderboards.

Outside the daily there is Demolition, an endless series of solvable levels with a piece budget and specials such as bombs, armoured cells and mystery values, and three endless modes: Easy, Classic with a new row pushing in from turn 10, and Hardcore where both sides push. Power-ups can reveal where pieces will fall, flip a direction, change a value or a sign, or store a piece for later.

Sum Fall is made by Adrien Buot and came out in April 2026. It plays offline with no account, in five languages. It is free with ads and a lives system; a one-time Premium purchase removes ads, gives infinite lives and adds a power-up charge.