I have finally started working on Atlas again (even though I should be working on Graviton).
Here's a not-so-impressive screenshot I took of a simple rendering test:
Although it features a rectangle, I have actually decided to make Creeps circular. It will allow for easier connections between cells in multicellular organisms, and generally make my life easier when it comes to movement and implementing sight.
The repo of the project can be found here: github.com/Yannbane/Atlas.