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About
Drop a bug on the board and infection runs out along its arms to the edges. Walls block it. Repel switches push it back. Traps clear everything. Relays fire rays of their own. Infect every cell to win.
Hundreds of hand-built levels across 16 worlds, plus the complete 128-level original from 2014. A new Daily puzzle every day, the same board for everyone, with streaks. Endless mode by difficulty, no clock. Play entirely offline.
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What's New in Grid Infect
1.0.1
October 16, 2026
• Fixed a rare case on the original 2014 levels where using SOLVE several times in a row could use up your SOLVEs and still leave the board unfinished. SOLVE now only places a piece if the level can still be completed. • When you're out of SOLVEs, the button now reads "+1 SOLVE (AD)" so you know a short ad will play before you get one. • Rays now draw cleanly along diagonals when you place a piece. • Cells now light up from their center outward.
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Subscriptions & In-App Purchases
$4.99
Remove Ads
Removes the ads that interrupt play. Yours for good.