Frog God's Monastery is an adventure module available in a digital PDF version, designed for 4th–6th level characters. It captures the spirit of classic old-school gaming and is fully compatible with OSE, the first edition of AD&D, and other OSR systems.

This PDF version keeps the adventure right at your fingertips – open it easily on your tablet, computer, or phone and jump straight into the game.

The adventure leads players into a vast swamp teeming with strange inhabitants, dangerous factions, and marsh monsters. In the heart of this inhospitable land lies a half-ruined monastery complex, now home to a fanatical frog cult worshipping an ancient, inhuman deity. Beneath the monastery stretch ancient catacombs dating back to a time long before humanity, filled with forgotten secrets and deadly traps.

The module combines a mini point-crawl in the swamps with fifteen detailed locations and a vast, complex dungeon featuring seventy-seven locations, multiple entry points, sublevels, and a wide range of challenges. Frog God's Monastery is perfect for gaming groups looking for a dark atmosphere, non-linear progression, and an emphasis on exploration, decision-making, and the consequences of player choices.