May I present you my latest level - Maths zone!! (Hooray!)
Theme: Mathematics
Design: One single zone, solely gameplay i.e. no story, minimal internal scripting
Trinkets: 12 (in 40 rooms!!)
Crewmate:

Difficulty: Fairly challenging
Map:

Fancy screenshots:




I will be fairly busy in life soon, so this will be my last level for the time being.
Please give me some suggestions and point out bugs in case you face any.

The original version has 20 downloads before removing.
v1.1 has 13 downloads before removing.
EDIT: I'm removing all my levels after receiving confirmation that I'm a poor level maker. It's probably my strongest level before "retirement" but its difficulty needs a lot more finetuning. If you really want to go through such a mess, I still have them backed up and I would reply to you maybe 20 years later.