Stack Em! Cosmic Blocks vs Gridlock

Stack Em! is a clean, satisfying block puzzle built for quick sessions. Drag pieces onto the board, complete rows and columns, clear space, and chase a higher score. Features: • Ad Free! Just Play • Fast offline gameplay • No account required • Smooth drag-and-drop block placement • Satisfying clears, combos, sound, and haptics • Multiple visual themes to unlock and enjoy Play at your own pace, restart instantly, and keep improving your best run.

You know the moment. Three pieces drop into the tray, none of them fit anywhere, and you realise the run ended two moves ago — not because you played badly, but because the game handed you a hand that was never playable. Gridlock doesn't do that. Every tray is checked before it reaches you. You will still lose, often. But you'll lose because you filled the board and ran out of room, which is your own doing and fixable next time. HOW IT PLAYS Drag three pieces onto an 8x8 grid. Fill a row or a column and it clears. Clear on back-to-back moves and the combo multiplier climbs. Pieces don't rotate, and the tray only refills once all three are gone. So each round is a small planning problem rather than a reflex test — which is why it works equally well in a two-minute gap or a long evening. That's the whole game. Nothing to unlock, no meters refilling in the background, nothing asking you to come back at six o'clock. TWO WAYS TO PLAY Endless — one board, one score, until nothing fits. Daily Challenge — the same board as every other player, every day. ABOUT THE ADS Gridlock is free and supported by advertising, so here is exactly what that means: never an ad before your first game, and never more than one between games. If you want three fresh pieces after a run ends, or more undos, you can choose to watch one. Nothing else. ALSO Undo your last moves, because everyone misclicks. Works offline. No account, no sign-in. Your scores stay on your phone.