Unified Setting/Lizardfolk
Lizardfolk are what you fight in a swamp. If you are in a swamp, you will probably fight lizardfolk. Swamp=Fight lizardfolk. Considering how amazing and how variable/awesome lizards are in the real world it's sad that this is all RPGs offer.
Unified Setting Description
Lizardfolk are reptilian beastmen native to Vilous.
Lizardfolk are expected to explore their brave, new world, to seek out new life and new civilizations, to boldly go where no lizardfolk has gone before!
Whatever knowledge they find they are expected to bring back. That can be in the form of new ideas or clever slaves, but if they don't serve their cause and god of PROGRESS! their chances of spawning are pretty low.