Tetris

TETRIS

SCORE 0
LEVEL 1
HIGH 0
NEXT
TO LVL 200

Scoring System & Techniques

Base Line Clear Points

Single (1 line): 10 × (level + 1)

Double (2 lines): 30 × (level + 1)

Triple (3 lines): 50 × (level + 1)

Tetris (4 lines): 80 × (level + 1)

T-Spin Single: 80 × (level + 1)

T-Spin Double: 120 × (level + 1)

Perfect Clear: +100 × (level + 1)

Back-to-Back (B2B) Bonus

Clearing a difficult line (Tetris or T-Spin) immediately after another difficult line awards a 1.5× multiplier. This stacks indefinitely as long as you maintain the chain.

T-Spin Mastery

Basic T-Spin Setup

Setup pattern (X = filled, _ = empty, T = T-piece):

X X _ X X X X X X X
X X X X X X X X X X  ← Clear this line
    ↑
  Place T here, rotate clockwise

Build a notch (2-wide gap) in your stack. Drop T-piece flat above it, rotate clockwise. The wall kick pushes it into the notch, clearing 1 line.

Stacking Patterns

9-0 Stacking (Intermediate)

Keep leftmost or rightmost column empty. Build 9 columns high, place I-pieces vertically for Tetrises.

6-3 Stack (Advanced)

Build a platform 6 columns wide on left, leave 3-column well on right. Alternate between TSD setups and Tetrises.

Mobile Tips

  • • D-Pad: Left thumb controls movement
  • • Rotate/Drop: Right thumb
  • • Enable lock delay in settings (gives 0.5s extra placement time)

Scoring & Speed

  • Line clears score 10/30/50/80 points × (level + 1).
  • Back-to-back clears and T-Spins grant a 1.5× bonus.
  • Levels accelerate after every 200–400 points depending on the stage.

Scores and leaderboards save locally via `tetrisHighScore` and `tetrisLeaderboard`.

Recent Updates

  • 2024-05-22

    Refined mobile HUD spacing and added colorblind palette presets.

  • 2024-04-18

    Fixed level 12 hard-drop stutter and lowered background music volume.

FAQ

What inputs can I use?

Keyboard, touch controls, and an optional Gamepad API beta (toggle in Settings → Input).

Where do ads appear?

Ads render in the hub header/footer and the top/bottom strips on this page; the gameplay canvases stay ad-free.

How do I reset saves?

Delete `tetrisHighScore` and `tetrisLeaderboard` from Local Storage for a fresh start.

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