RETRO ARCADEINSERT NOSTALGIA
● NOW IN THE ARCADE / PUZZLE

Tetris

Play Stack Shift free in your browser. Rotate falling shapes, clear rows, and keep up as the pace rises.

RETRO ARCADE / NOW PLAYING
GAME 006 STACK SHIFT
SCORE 0LINES 0LEVEL 1
RETRO ARCADE / 006STACK SHIFT

Shift the falling shapes. Fill a row to clear it.

ARROWS / WASD / TOUCH
WIDE DESKTOP Use Left and Right to move, Up to rotate, Down to lower, and Space to drop. WASD also works.PORTRAIT PHONE Tap the on-screen move, rotate, lower, and drop buttons, or swipe across the board.
DESKTOP Use Left and Right to move, Up to rotate, Down to lower, and Space to drop. WASD also works.MOBILE Tap the on-screen move, rotate, lower, and drop buttons, or swipe across the board.
01 / ABOUT THE GAME

Tetris Online & Unblocked: Meet Stack Shift

Stack Shift is Retro Arcade's original falling-block puzzle with its own visual style and seven geometric shapes. Plan ahead as the next shape appears and make space by filling rows.

Clearing rows in consecutive placements builds a score chain. The pieces fall faster as your cleared-row count climbs.

Stack Shift is independently created with original code and art. It is not affiliated with or endorsed by the owners of Tetris.

02 / FIELD MANUAL

How to Play

  1. 01Select Start Stacking to begin a new run.
  2. 02Move and rotate each falling shape to fit it into the stack. Use Drop to place it immediately.
  3. 03Fill a horizontal row to clear it. Consecutive clears build a larger score, and the falling speed rises every ten rows.
  4. 04The run ends when a new shape has no space to enter. Retry to improve your score and best line count.
03 / CONTROLS

Your Controls

Desktop

Use Left and Right to move, Up to rotate, Down to lower, and Space to drop. WASD also works.

Mobile

Tap the on-screen move, rotate, lower, and drop buttons, or swipe across the board.

04 / THE ARCADE WAY

Why Play on Retro Arcade?

01Instant browser play
02No download needed
03Desktop + mobile
04Retro arcade energy
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GOOD TO KNOW

FAQ

Can I play a Tetris-style game online here?

Yes. Stack Shift is an original falling-block game that plays in your browser.

How do I rotate and drop a shape?

Press Up or W to rotate, Down or S to lower, and Space to drop. On a phone, use the buttons below the game.

How does scoring work?

Clearing more rows at once earns more points. Consecutive clearing placements increase the reward.

Is Stack Shift the official Tetris game?

No. It is an independent puzzle game and is not affiliated with or endorsed by the owners of Tetris.