"A fantasy d20-themed dungeon crawler", to quote DarkGod's comment. Inspired by Incursion by Julian Mensch. Made available under Open Game License. This is a non-profit fan project. No money is made. There are currently only two people working on the mod. However, we have released several beta versions so far.
Now you can see the in-character information too.
Also, that sustained talent in the hotbar is something that has been long in the planning. Hint: I've approached this gnome once already and it didn't react to me.