Cube Fit is a logic-puzzle game in the block puzzle category. Across 99 levels, the player uses spatial thinking and other strategies to eliminate one or more three-dimensional teal cubes from an upper pattern to align the remaining ones with gaps in a lower pattern to create a complete square.
The player receives two vertically positioned patterns on the playfield per level. They make selections to remove the blocks from the top pattern so that the remaining ones successfully drop into gaps in the lower pattern to complete the puzzle. Typically, their greatest challenge is to understand how the cubes from both patterns can fit together via elimination. That said, the game increases the number of blocks on the playfield in each pattern over time to make it more difficult for the player to visualize their moves and create a strategy before making their selections.
Cube Fit allows the player to reload a level at any time without penalty via an upper-right corner semicircular forward arrow button. If they suddenly struggle to visualize their next moves, they can receive a hint by selecting the button marked with a light bulb in the same area and viewing an ad video. They can also skip a level entirely with a forward double-arrow button.