How high can you stack?
Block Boi is a free block-stacking game for iOS and Android. Drop blocks, climb your tower, and see how far you can go.
Play through campaign levels or take on Infinite Mode. Build the tallest tower each week and compete for the prize on the leaderboard.
What is Block Boi?
Block Boi is a physics-based platformer and stacking puzzle game. Run, jump, dodge spikes and rolling death balls, throw bombs when the level demands it - then hit a stacking flag, hear the countdown, and build.
You're not just dropping blocks. You're engineering a tower.
- Tap to rotate
- Slide to position on the grid
- Slide down to fast-drop
This week's prize
500
How to play
Levels - Platform through 20+ campaign stages across multiple worlds: the tutorial Simple world, sunny Grass, industrial Metal, and Furnace (coming soon). Collect coins, hunt crates, and discover hidden secrets as you go.
Infinite - Endless stacking. Build the tallest tower you can, measured in centimetres and metres. Compete on the global leaderboard for this week's real-money prize. The scores to beat are right there on screen while you play.
Tutorial - New to stacking? Learn gold blocks, tessellation, and the art of not watching your tower collapse in slow motion.
Join the community
Share your tallest towers, swap stacking tips, compare Infinite scores, and talk to other players in the official Block Boi Discord.
Join our Discord
Master the stack
Place blocks straight, pack them tight, and touch at least two others - they turn gold. String together 7 gold blocks in a row and you trigger a tessellation bonus: floating bonus islands, speed boosts, and that satisfying "Nice tower" moment.
No gaps. No sloppy angles. Stack smart. Watch out for explosive blocks in Infinite - they go gold like everything else, until they don't.
Unlock & discover
- Block Boi - The legend. Your starter.
- Bacon Boi - Hidden in the levels. Keep playing until you find them.
- Iso - Lurking deeper in the Metal world.
Earn coins, spend them in the block shop, and unlock characters and items as you explore. Free to play - jump in as a guest or sign in to save progress and climb the Infinite leaderboard.
This is Block Boi.