Gods & Monsters is mostly compatible with TSR’s old Advanced Dungeons and Dragons role-playing game, at least their first and second editions. You can use most any first or second edition adventure with Gods & Monsters. It is likely also compatible with original D&D and the basic/expert set adventures.
The original version of this document, as well as a link to purchase printed copies, is available at http://godsmonsters.com/. Go to http://godsmonsters.com/cool for a list of great old-school adventures that you can use with Gods & Monsters.
