From publisher blurb:
You've reached the Gates of Shun-Zin.
The massive iron doors closed in response to a mysterious earthquake. Numerous denizens of the city are now trapped outside.
Perhaps they need your help to return to Shun-Zin? Perhaps they're just obstacles in your way? Only YOU can decide...
SHOTGLASS ROUNDS are PDF-only One-Shots! Each adventure is designed for a 4-5 hour game and includes new monsters, full-size player’s maps in grid & grid-less versions!
Gates of Shun-Zin is a complete, 3rd-level adventure with new monsters, new magic items, and multiple new and old school maps! It's an old school-style adventure designed to be used with 5e, Old School Essentials (OSE) or OSR games, and comes with 5e and OSE/OSR monster listings and 5e and OSE rulings.
Gates of Shun-Zin can be played as a One-Shot or as the first adventure in the old school-style Dungeon Duumhaven mini-campaign, designed to take PCs from 1st - 8th level!