Design Statement
I started by listening to the theme track several times, and coming up with words I would use to describe it. I ended up with the following words:

nighttime, lullaby, sleep, dream, clouds, sky, stars, mechanical, clicking, windup, motion

From those I narrowed in on a few central concepts: Night, Hope, Mechanical. This led to the observatory concept, and the idea of ascending an observatory to find hope lent itself to a metroidvania, so that's where I went. The track was also quite peaceful, so I opted for no enemies, instead using simple traps ("mechanical") for the conflict.

Game Instructions (launch steps, controls, and gameplay overview)
Keyboard:

Arrow keys to move
Z - Make a platform (when unlocked)
X - Dash (when unlocked)
C - Jump
Down - Crouch (hold) and then jump to jump extra high (when unlocked) or jump and then down to slam through glass platforms and boxes (when unlocked)
R - reset
M - toggle the minimap

The game is a metroidvania. You are attempting to light the beacon at the observatory. To do so, you must find the four "terrestrial sigils" and once you have them, bring them to the pyramid in the centre of the map, then follow the light.

Gameplay walkthrough video
https://youtu.be/Dqk38t-KrJ4

Did your project use any AI tools or assets? If yes, please specify.
No