OK, took a while but here it is. Still learning so please let me know if anything goes wrong.
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=302806593

Designed the puzzle in the PeTI but completely rebuilt it in Hammer overcoming obstacle after obstacle as big time hammer noob...
I learned quite a lot creating this one with great help from Pirahna.A who teaches me a lot, thanks for that. Also prototype helped me get the paint cube working properly so thanks go to him as well :)
Please notify me of any kind of bug...
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=264851351

To my knowledge there are no rules about hammer in general but for this particular competition I would agree, but it's up to LPChip to decide...

I agree, i did hammer this one a bit so it looks better and the connection visibility sucked so I also redid that. And while I was at it, I changed the music to a more suitable tune :P.
Apart from that, it's all PeTI

a round corner would indeed do I guess, but would be kinda unfair to mappers without hammer knowledge...
Edit : a well, I allready posted mine :P

I guess 2 as it would be 2 glass walls

Ok here we go, 12 Items (if you count the cube and dropper as one) and 20 lightstrips
Edit : 13, I missed the goo there... but whe're still good to go :)
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=264292643

What about the stock observation room when I hide it away from the map itself? I don't want the damn thing in my map but it would still count as item....
Otherwise I will have to export the map to hammer and delete it there :/
Edit : Also a cube and dropper count as 2?

I'm fine with any idea, choose which one you like best :)

Anyone got an idea? In empty headded