Stack blocks as high as you can. Your height only counts once blocks have come to rest, and anything that falls off the grid is lost to the void. Each material behaves differently: ice slides, rubber bounces, metal is heavy and foam is feather light.
Tools
| Place | Drop the selected material and shape. Set the drop height to zero to place blocks gently. |
| Grab | Drag a block to carry it. It hovers over whatever is underneath and drops when you let go. |
| Push | Shove a block away from the camera at the spot you click. |
| Remove | Delete a block. Anything resting on it will fall. |
Mouse and keyboard
| Click or Space | Use the current tool |
| Left-drag | Orbit the camera |
| Right-drag or Shift + drag | Pan across the grid |
| Scroll | Zoom toward the cursor |
| Right-click | Centre the view on that spot |
| ← → ↑ ↓ | Orbit and tilt |
| I J K L | Pan |
| + − | Zoom |
| B G P X | Place, Grab, Push, Remove |
| 1–6 | Pick a material |
| Q E | Rotate 45° (also turns a block you’re holding) |
| R F or Shift + scroll | Raise or lower the drop height |
| Scroll or R F while grabbing | Lift or lower the held block |
| H | Show this help |
| ` | Show or hide the debug panel |
Touch
| Tap | Aim the preview (Place) or select a block (Push, Remove) |
| Gold button | Confirm: drop, push or remove. A second tap on a selected block works too. |
| Drag the preview | Fine-tune where the block will land |
| Drag a block | Carry it (Grab) |
| One finger | Orbit the camera |
| Two fingers | Pinch to zoom, drag to pan, twist to rotate |
| Two-finger tap | Centre the view |