Atlantis: The Second Age Theragraphica is up on Kickstarter and looking to fund. There’s plenty of new monsters to throw at your unsuspecting players. Go check it out.
From the campaign:
The Theragraphica is the final companion book for the role-playing game Atlantis: The Second Age. The Theragraphica details the adversaries and creatures that stalk the antediluvian world once ruled by the kingdom of Atlantis.
The lavishly illustrated book details creatures of cultural myths from around the world, each keyed to a distinct region to help immerse the players in the world of ATLANTIS. With the Theragraphica, no longer will the heroes battle generic monsters with no cultural grounding.