From publisher blurb:
Siege of the Silver Stag is an adventure for a party of four to six 4th-level adventurers for 5th Edition Dungeons & Dragons. This one-shot is a horror survival adventure that requires the characters to survive waves of zombies while managing the conflicting personalities of the surviving NPCs during the interludes.
Siege of the Silver Stag includes a creative Threat System, allowing you to resolve a number of events with each of the NPCs in the tavern without including all of them in combat. The system relies on random tables, allowing for replayability from one session to the next. Each NPC has a backstory and motivations that weave with the lives of each other, and the events in the later stages of the adventure can vary depending on who survives the early waves. Included in the adventure are:
A custom map from Saga Mackenzie
Three new monsters
story ideas for future adventures
The unique Threat System that makes life easy for the DM