HT Game Hub

Next Queue

Beam

Next Level: 10 lines

Score 0
Best 0
Level 1
Time 00:00
Sector Mercury Forge
Lines 0
Combo x1
State Menu

Puzzle Guide

Clear, compact, and easier to scan

Prism Stack is a modern falling-block game with next queue, combos, and planet-themed level progression. Learn the basics quickly, then chase cleaner clears.

Next queue planning Mobile-friendly Run saves + leaderboard

About

Stack pieces into a clean 15 x 24 well and complete full horizontal lines before the launch lane closes.

Single clears keep you alive, but back-to-back clears and efficient drops drive the bigger leaderboard scores.

How to Play

  • Slide pieces left or right to line them up cleanly.
  • Rotate clockwise or counter-clockwise for easier fits than the old 3D version.
  • Use instant drop when you are ready to lock a piece straight to the ghost position.
  • Watch the next piece preview and the ghost projection to plan ahead.

Controls

Move: Left/Right or A/D

Rotate: Up, W, or X

Counter Rotate: Z or Q

Fast Fall: hold Down or S

Instant Drop: double-tap Down or mobile Down

Pause: P or Esc