Moscow logic / arcade color

Blockfall 84

Seven shapes locked

deep-black playing field / pixel rhythm

Seven blocks fall

A saturated puzzle alphabet snaps into a hard black grid: cyan, yellow, purple, green, red, blue, orange; no curves, no blur, no wasted pixels.

I O T S Z J L
This is the Tetris (1984) design system, applied by Curio Design — a design-style library for AI agents. Full Tetris (1984) guide → designbycurio.com/learn/tetris-1984