Hey! Solid work, great aesthetic. I'm having trouble finding these rounded bits for the dark cross floor tiles, I only see the full square in the upper right of the sprite sheet. The image here is from your mockup. 
2 days ago (+1)
Hey! Thanks a lot :)
To do that, overlay the "broken tiled floor" tiles onto the "cave floor" tiles. You can do that directly in your engine (if it supports multiple tile layers) or, alternatively, in an image editor like Aseprite (the best software option if you take this route), Photoshop, or similar, before using it in the engine.
I hope it helps!
