"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.
Progress is happening as far as an optional trainers feature is concerned. The option will require you to find a trainer for the class and/or skill and/or feat you want to learn. In the future, it will turn off the default level up screen, too.
This is the trainer dialogue so far - it launches the proper screens but randomization is not done yet.