The objective of Block Stack is to create a stable tower by stacking rectangular blocks on top of each other. Players are given a limited number of blocks, each with a unique size and weight.
The game requires players to think strategically about the placement of each block in order to maintain balance and prevent the tower from collapsing. The core mechanic involves rotating blocks to fit them onto the existing tower, with players needing to balance weight and size to achieve stability.
The challenge lies in creating a tower that reaches a certain height without toppling over. Players must carefully plan their block placement, taking into account the size and weight of each block, in order to succeed. Block Stack runs directly in the browser, requiring no download or registration to play.