Don't know if I'm ever gonna upload anything else aside from this but I wanted to share this since I went through the trouble of making it vanilla compatible and set up for a fresh playthrough so why not.

This is a small island I made as an empty template to build onto/do a playthrough in. Everything in the build exists in the base game or is a base game object with modified proportions and/or rotations via the infinity hammer mod and gizmo mod. So you can play in this world without mods and have friends play in it too without them needing anything either. The build itself is one small island made up of a hollow hill covered by a canopy hanging over it and thick foliage throughout. It contains several caves and rock platforms to build in/on.

Important stuff:

1. The Hollows height map (natural ground that can be lowered or raised by 10 meters) is artificially modified by using an object called "ship_construction". If you use an unspecified forcedelete command it will likely delete some of these objects and irreparably mess up the terrain if you don't have the mods and know how to fix it.

2. Everything in the Hollow is borderline indestructible so if you want to get rid of something and don't have mods you'll need to use the forcedelete command. Be extremely careful about the radius you list and always specify the item ID of what you want gone to avoid ruining the terrain. If you want to make significant modifications beyond deletion then you'll need the infinity hammer and gizmo mod.

3. I tried to make everything line up with the vanilla building rotations so nothing would look weirdly angled when built in/on without the gizmo mod but unfortunately I had that thought after already building the entrance tunnel. So that part won't line up. Most other things, mainly the caves, should line up just fine though.

4. I used a mod to freeze time progression while I built everything so when you play in this world it should start on day 1 and progress from there. However, I did skip time up to day 3 and then regress it back so some things (mainly furnaces and kilns to my knowledge) may be frozen until midway through day 3. Sorry about that :P

P.S. Apologies if there are any issues. I've done some testing to make sure everything works but I'm new to this so I can't say for 100% sure that everything works as intended.

Edit: There was in fact something that didn't work. I was using a character with jump 100 so I didn't realize the ladders took around 60-75 jump skill to properly function. Apologies, feel free to remove the ladders if you can't use them and just use stairs or portals instead.