Space Engineers attempt of building monorail bewtween starter and main base.
The screenshot comes from early stage of the project (in Survival mode).
Starter base was on the hill. The main base was incorporated in the mountain seen in the back.
The full track has 2 lines perpendicular with a bridge over the gap.

Monorail loco was crude but effective design. 2 drills on front, 8 wheels downward (1st version had only 4) 4 wheels on sides.
4 medium containers (for small grid) and 4 medium batteries.
Mostly stable, but turntable speed must be max 2 deg/second (even then sometimes it may fall from the track)

Space Engineers belongs to Keen Software