How high can you stack before the tower fights back?

Stack Tower Insanity starts as the stacking game you know — tap to drop blocks, land them perfectly to keep your tower wide — and turns into something else entirely the higher you climb.

🏗️ STACK
Tap to drop moving blocks. Perfect drops keep your block wide and build a scoring streak: land them back to back and each one is worth more than the last. Miss the edge and your tower shrinks until there's nothing left to land on.

🌪️ SURVIVE THE SWAY
From floor 25 every block is worth double — and the whole tower starts swaying. Timing gets harder, drops get riskier, and every perfect landing matters.

🚀 FIGHT BACK
Reach floor 50 and the game transforms: your block becomes a ship. Steer with tilt controls, auto-fire at incoming enemies, and survive as long as you can. The invasion starts as a trickle and builds to a storm by floor 100 — and a drop timer keeps you climbing, so camping is never an option.

👹 BOSSES
Every tenth enemy is a boss: twice the size, ten times the health, and a gun that sprays the whole lane. Bring one down for a serious score.

💥 GRAB THE POWER-UPS
Downed enemies drop shields, rapid fire, and screen-clearing bombs. Steer into them mid-fight to turn a losing run around.

⚡ UPGRADE YOUR SHIP
Spend coins on fire rate, damage and hull upgrades — then max them out to unlock TWIN CANNONS and fire two shots at once.

🏆 CLIMB THE LEADERBOARD
Daily, weekly and all-time boards. Finish in the top 100 to earn coins, medals and exclusive rewards — then tap any rival to see their stats.

🎖️ 39 ACHIEVEMENTS
From your first perfect drop to one million blocks stacked. Game Center achievements included.

🎨 MAKE IT YOURS
Aircraft skins, tower skins, avatars and profile frames — earned by climbing, won on the leaderboard, or bought with coins. Chase The Architect set if you dare.

Free to play. Optional in-app purchases (coin packs, cosmetic packs, remove ads, 2× rewards) and ads that can be removed forever with a single purchase.

Simple to learn. Brutal to master. Insane past floor 50.