Werwulf ARG launches alongside new trailer — solve moon-timed puzzles before December release

Focus Features dropped a new trailer for Robert Eggers' medieval horror film Werwulf today, and alongside it announced a tie-in Alternate Reality Game that runs from September through November 2026. Both reveals are part of a marketing strategy timed to the lunar calendar — every major asset drop for the film follows the full moon cycle.

Werwulf stars Aaron Taylor-Johnson as a 13th-century farmer cursed to become a werewolf, with Lily-Rose Depp as his wife and Willem Dafoe, Ralph Ineson, and Jack Morris playing a trio of wolf hunters hunting him down. The ARG lives at DevourethAllMankynde.com and runs across three full moons between September and November. Each full moon, players have 24 hours to track down a hidden sign scattered across various digital platforms, then bring it back to the site to complete that moon's challenge. Anyone who completes all three moons earns a mysterious prize — Focus hasn't said what it is. The first clue is already live.

Robert Eggers has described Werwulf as a "Hell-like" medieval horror film, continuing his run of period-set, atmosphere-heavy genre work — The Witch, The Lighthouse, and The Northman all leaned hard into historical dread, and Werwulf looks to push that further into creature-horror territory. ARGs tied to horror films have a long tradition of building cult audiences before release, and the lunar gimmick fits Eggers' obsessive attention to thematic detail.

Werwulf opens in cinemas on December 25, 2026. With three full-moon puzzle windows between now and then, the ARG is clearly designed to keep the film in conversation all the way to release day.