Click a tool, then click a gnome. Blocker stops others. "Dig ↓" (digger) tunnels straight down. "Dig →" (miner) tunnels horizontally through rock in the direction the gnome is facing. Builder lays a staircase up. Parachute lets one gnome float down safely from any height.
signup to receive a short message when new levels arrive
Level 4 — parachutes
Some drops are too far, even for a bridge. Assign a parachute to a gnome and he will float down safely from any height.