AT THE CASUAL DESK
Pendulum Stack
Build a balanced tower from drifting jewel blocks.


Timing arcade
One clear challenge.
Press Stack or Space when the moving block lines up with the tower. Only the overlapping part remains. Place ten blocks; missing the tower ends the attempt.
No Play Credits or stakes. Your best and completed challenges are saved on this device when storage is available.
Before you play
The goal and next move appear above the field. Direction, action and settings buttons sit below the field. Start when you are ready; Pause stops time and movement. Restart creates a fresh attempt. Preview begins automatically and does not save a result.
UN-POP is for UK adults aged 18+. Read Player Care, Terms and Privacy before creating an account.
