Powered by Rust + WebAssembly + WebGPU
Stack falling pieces to form complete horizontal lines. When a line is completed, it disappears and awards points. The game ends when pieces reach the top of the board.
Enhance your experience with music-reactive backgrounds and retro visual effects:
• Use ← → arrow keys to navigate between help pages
• Press H or ESC to close help and return to game
Seven different pieces fall from the top. Learn their shapes and names:
Tip: All pieces can be rotated with the ↑ key. The I-piece is perfect for clearing 4 lines at once (Stacky!)
• Clear 10 lines to advance to the next level
• Levels 1-20: Speed increases progressively with each level
• Level 21+: Maximum speed maintained for ultimate challenge
• Higher levels = significantly more points per line clear
⚡ Chain line clears for massive scores!
Clear lines consecutively to build combos! Each piece that clears lines extends your combo. Timer starts at 3.5s (level 1) and scales to 2.5s (level 20+). Each combo reduces timer further, down to a minimum of 1.2s (level 1) or 0.8s (level 20+).
×2 = 1.5x score
×5 = 3.0x score
×7 = 4.0x score
×10+ = 7.0x score!
×5 = Chain Reaction
×7 = Mega Combo
×9 = Phosphor Overload
×10+ = Critical Mass!
💡 Pro Tip: At high combos, phosphor effects intensify and the screen starts shaking. Push for ×10 to achieve CRITICAL MASS with full CRT distortion!
🏆 Become a Stacky Champion!
• Use hard drop (Space) for instant placement
• Master rotation timing
• Plan 2-3 pieces ahead
• Prioritize multi-line clears
• Save I-pieces strategically
• Level up for score multipliers
The secret to mastering Stacky is patience and planning. Don't rush for quick clears - set up multiple lines and go for those high-scoring Stacky bonuses. Remember: one 4-line clear is worth 30 single lines at the same level!
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