OMG! You're the creator of Sprytile! That's awesome, I love your project! The tileset requires some adjustments if it were used for 3d I guess, but I totally see it used in a 3d first person dungeon crawler now :)
Yep, could use a corner floor tile which I could have put together if I wanted to edit the tileset. I did enjoy the effect of the liquids spilling down into the floor though.
Speaking of 3D first person game. I'm using your tileset to make a small prototype.