Place colored blocks on an expanding grid — but matching adjacent colors block clears! Outpace entropy creep, trigger chain reactions in cascade mode, deploy shields and salvage charges, master growing boards from 6x6 to 8x8, or challenge AI opponents in Cascade Clash versus mode with entropy attacks, counters, and special blocks.
How Grid Lock plays
Grid Lock inverts the usual color-matching loop: matching adjacent colors blocks the cell from clearing instead of clearing it. You're managing the opposite of greed — placing colors apart, then bridging them later in a deliberate chain. The grid expands from 6×6 to 8×8 over the course of a run, and entropy creep slowly fills cells you haven't cleared.
Each turn places one piece. Pieces can be rotated before placement, and rotation matters: the same piece in a different orientation can either save a chain or kill it. Salvage charges and shields are limited resources earned through play.
Modes and what they reward
Classic is the standard solo mode against entropy creep. Cascade Clash is the versus mode: you face an AI opponent and your matches send entropy attacks across the divider. Counters, special blocks, and combo timing all interact with the opponent's board, so playing for personal score and playing to win look different.
Entropy Countdown is the high-pressure mode: a faster creep timer, smaller margin for error, and bigger combo bonuses. Top scores typically come from Countdown runs, but the failure rate is much higher.
Strategy: bridges and salvage
Plan two moves ahead. The piece you have right now matters less than where it goes relative to the next one. A short bridge between two colors lets you set up a cascade that clears half the board.
Hoarding salvage charges is a trap. They expire when entropy wipes the cell anyway. Spend them on protecting active chains, not as panic buttons.
- Set up chain reactions by placing matching colors one cell apart, then bridging them.
- Save salvage charges for when entropy creep threatens your best combos.
- Rotate pieces before placing — the right orientation creates more adjacency matches.