From publisher blurb:
Bringing fighters, wizards, bards, and multiclass ranger/paladin/martial artist/math-a-magicians to Abstract Dungon
In many roleplaying games, players are able to sum up their characters with just one word, be it fighter, wizard, ranger, or ninja.
While the Abstract Dungeon core game doesn’t have any character classes like many traditional roleplaying games do, but it does contain an extremely flexible trait system. For those who appreciate the direction classes provide, or for those who just want to kick it old school with a half-orc barbarian, you can use these class traits to create characters that mimic the feel of classes.