Stack

Stack is a sleek arcade game where you stack blocks on top of each other as precisely as possible to build the tallest tower you can. Each block slides back and forth, and you must tap at exactly the right moment to align it with the one below. Any overhanging portion gets sliced off, making your platform increasingly smaller and the challenge progressively harder.

How to Play Stack

Tap or click when the moving block is aligned with the block below it. The closer to perfect alignment, the more of the block you keep. Misaligned portions are cut away, shrinking your available platform. Try to stack as many blocks as possible before the platform becomes too small to land on.

Controls

• Left Click / Space - Drop the current block
• Any Key - Drop the current block

More Games Like This

If you enjoy Stack, check out these similar games on HamsterMath:

• 99 Balls Evo
• Frying Nemo
• Riddle School

FAQ

Is Stack free to play? Yes! Stack is completely free to play on HamsterMath. No downloads, no sign-ups — just open your browser and play instantly.

Can I play Stack on my phone? Yes — Stack works on mobile browsers, tablets, and desktop computers. For the best experience on mobile, play in landscape mode.

Does Stack require Flash? No. Stack is an HTML5 game that runs directly in modern browsers without Flash or any other plugins.