2048 3D reimagines the beloved sliding number-merge puzzle with an added dimension. The core is the one that made this genre a phenomenon: shift the board, watch matching numbers slide together and double, and keep enough space open to keep the chain going. Simple to grasp, genuinely tricky to master, and quietly ruthless once the grid starts to crowd.

As a number puzzle it rewards planning over speed, thinking a move or two past the one in front of you so a full board never catches you flat. It's free and browser-based, made for that just-one-more-slide feeling that eats your afternoon in the best way. Chase a bigger tile than last time, and when you want a change of pace, there are more puzzle games to try.