Build your world across the planets of the Solar System
Click or press any key to start
ASTOMINE
Astronaut account
ASTOMINE· Nowhere
Choose a world to build on
Drag to rotate · Scroll to zoom · Click a planet or the Sun
Online room
Friends who type the same room code play together over the internet. Builds are saved in each player's browser and merged when you meet.
Design your astronaut
Suit
Trim colour
Visor
Mission patch
Flag
LAUNCH
…
Jetpack
✈ Fly mode
Health
Food
Power
SICK — press T to eat · grow crops for food
POWER OUT — devices are off
Click to playEsc menu · H help · E blocks, items & buildings · V camera views
Menu
Put something in the selected slot
Flag for flag items:
Sign text:
Controls
W A S DWalk (Shift to run)SpaceJump · press again in mid-air and hold for the jetpackFFly mode (Space up · C down)MouseLook around (or drag, if the mouse is in drag mode — see Menu) · I J K L also lookLeft click / XBreak / dig the block you aim at — hold to keep going · harvest ripe cropsRight click / GBuild. Blocks attach only to the ground or to other blocks — never in mid-air. The grid on the ground shows the cells; the ghost block shows exactly where it goesB / Shift+BBuild tool: block, line, floor, wall, room, dome, pillar, flatten, dig, area demolishFlattenChoose a block (the ground material), hold right-click on the ground and drag a square / rectangle: it becomes level ground at that height — hills are cut away and holes filledDigHold right-click and drag an area to dig it out · [ ] sets the depthV / Shift+VCamera: first person → third person → front view → top-down build view (look up/down to reach nearer or further)Hold Z + WheelZoom in / out (tap Z to reset)EBlocks · Items (farming, power, lights, furniture, flags, defence…) · Buildings (house, company office, mosque, church, power station, farm, greenhouse, clinic)BuildingsPut one in a slot, aim at the ground and right-click: it is built facing you, on a levelled foundation, furnished and signedFarmingPlant seeds on farmland (grass or dirt is tilled for you). Left-click a ripe crop to harvest rations; it replants itselfTEat a ration. Food runs down over ~20 min — at zero you get sick, slow and lose health. Med bays (clinic) heal you while poweredPowerSolar panels (weaker far from the Sun), wind turbines (need air) and fusion reactors make power; batteries store it. Lamps, screens, turrets and shields switch off when it runs outMiddle clickPick the block or item you are looking at1 – 9 / WheelSelect a hotbar slot[ ]Dome size · dig depthQCancel the first cornerCtrl + ZUndo last actionRBack to the landing padEscMenu