A lunar day is 29 turns. Fourteen of them are dark — arrays make nothing, heating
triples, and the colony runs on whatever you banked. Every structure you add raises the
load you must carry through the next night.
WHERE THINGS ARE
- Water ice sits deep, in ground the sun never reaches.
- Helium-3 is solar-wind implanted — richest in the top few metres, where the sun does reach.
- You cannot dig toward both at once.
- The lander set down badly: its arrays are in shadow.
HOW TO PLAY
- Tap a tile, pick a tool, then hit BUILD in the bar along the bottom.
- Everything must connect to a habitat by dug tunnel.
- Habitats need 3 rows of regolith overhead or the crew takes a dose.
- CLEAR removes a building, or backfills a tunnel to restore that cover.
- Select a mine or processor and hit IDLE. The IDLE menu below the map shuts down a whole class at once — watch that idling mines also stops your water.
- Tap the day counter for the ledger, the full event log, and display options.
- SURVEY shades tiles by ore grade. Pinch to zoom; FIT returns to the whole colony.