Hello everybody.
Last year, I came here to ask some questions about how to begin procedural content generation. And today, I am glad to telle you that I've come a long way and put together a really nice plugin for Tier 1: a Wave Function Collapse algorithm in Tier 1 !
In the beginning, I implented the algorithm in pure Tier 1 but I found that it was way too slow to be useable, and I wanted to use it to make, for example, dungeons for procedurally generated levels so it was not possible to have it in full Tier 1. Instead, I programmed a little plugin to speed up the generation process and I'm quite proud of the result !
Platforms:

Windows 64 bits (W7 and higher)

Windows 32 bits (W7 and higher)

Linux

Mac OS
Store Link/Avaliability:
I joined a demon version of the plugin (only overlapping generation) with full doc and an example. But if you want to buy the full, commercial version of the plugin, you will find it in the tgcstore:
https://www.tgcstore.net/product/32303
How does it work?
There are 2 methods to generate something using Wave Function Collapse:
- Overlapping
- Tilemap generation
The overlapping method generates a png file that is locally similar to the input while the tilemap method generates a tilemap using tiles and tiles' constraints.
Examples:

Generating worlds:

->
This plugin is now avaliable on the store for the small price of 5.00$
If you want to try it out before buying, you can use the attached DEMO with a documentation. It only includes the overlapping algorithm though and can't be used for commercial projects.