Guide the Lander to the Blue Ice deposits trapped under the crater floor.
↑ / Space main engine | ← → rotate | Q E lateral thrust
When landed over blue ice, press D to drill into the ice.
When the drill is in the ice, press I to begin ISRU extraction.
This will fill up the Oxygen tank (white bar).
Retract the drill with D, then take off and find more ice for propellant!
W up (O₂) | A D rotate (O₂) | D deploy/retract drill | I begin ISRU