FlexTale Encounter Generator

Publisher's blurb: The FlexTale Encounter Generator is an ambitious Dungeon/GameMaster tool that makes generating infinite dynamic content as simple as rolling dice quickly. FlexContent tables such as the dozens that are included in this useful tome support a wide variety of difficulty levels, with PCs of any level. Furthermore, the results are usable in practically any fantasy RPG game: Pathfinder, Fifth Edition/5E, Swords & Wizardry... so long as the monster referenced is part of your game, this tool is fully usable as-is.