This Entry is based on the Halo universe specifically Halo Infinite.
Its a Xbox exclusive sci fi first person shooter for the people who are not familiar with the game.

The theme is a Banished outpost where they build and train their troops for war against the UNSC(humans). The Banished are a group of different kinds of aliens who banded together to destroy the last remaining humans. The great grey pillars you see are part of the Zeta Halo Ring which are building blocks to create these ring worlds. The ring has been damaged so that's why the pillars are showing trough some of the landscape

Unfortunately I had to rush this entry because of time shortage so if some parts seem unfinished then that's why.
The coaster is not really something you would see in real life I guess, but in my eyes it looks cool and that's for me way more important then the lay out or realism.

Anyway I hope you enjoy this Halo themed entry

Mulpje