Today I spent most of my time working on new tilesets for the prototype. I didn't like the feel of the previous "Dungeon" style tileset, I want dark but it was too dark. I also want to use lots of color, I feel temple/dungeon tilesets will restrict my use of color. The underground city/world I want to create needs to be a place people want to stay and explore, walls covered in shimmering stones,cave formations,glowing bugs etc. The center tiles are now seamless and look much better. Above I have included a screenshot with the new tileset implemented.