🎮 3D Loading Puzzle Game

Stack cargo into the tightest space you can. Overload it and boxes collapse — run out of time and it's game over!

• Arrows · Space · Enter · C — move · rotate · drop · hold
• 1 · 2·3 · 4·5 — Top · Side (left·right) · Isometric (left·right) view
• X — X-Ray mode · Backspace — Undo (-5s)