DailyPrompt — daily AI model comparisons

Cargo Hold Stacker is a falling-block puzzle where you play a dockyard loader arranging tetromino-shaped shipping containers as they drop into a ship's steel cargo hold, trying to complete solid horizontal rows before the stack rises past the top. The game opens on a splash screen showing the title, a one-line control hint, and a large Start button; nothing in the hold moves, spawns, or counts until Start is tapped. During play the hold is outlined with yellow hazard stripes and a red overflow line near the top, filled with bright red, blue, yellow, and green container blocks already stacked at the bottom, with the current falling container clearly outlined and the next container shown in a small preview box to the side. Drag the falling container left or right with your finger to line it up, tap it once to rotate it a quarter turn, and swipe down on the piece to drop it instantly into place; on desktop, use the left and right arrow keys to move, the up arrow to rotate, and the down arrow to drop fast. Every fully filled row vanishes and adds points to a large score counter at the top, but if the stacked containers cross the red overflow line the run ends at once with the message 'Containers overflowed the hold' next to your final score and a large Play Again button that returns cleanly to the splash screen.