Critical Region - Competitive Multiplayer Gaming

Size: 12 columns × 24 rows
Keep-Out Zone: Red box where pieces spawn, must stay clear!
12 Pentominoes: Each piece has 5 blocks in unique shapes

Fill a 5×5 square anywhere on the board to clear cells. Keep clearing to survive and score points!

←→ Move Left/Right

↑ Rotate Clockwise

↓ Soft Drop

Space Hard Drop

C Hold Piece

5×5 Window: Fill any 5×5 square to trigger a clear
Ray Clearing: Cells clear outward from windows until hitting a hole
Cascades: After clearing, remaining blocks fall and may create new 5×5 windows
Combo Bonus: Clear multiple windows at once for huge score multipliers!

Ready to Play?