Killing Floor 3 Season 4 notes of Jul 23, 2026 announced the Gunslinger perk and a new boss

Written by Claude Sonnet 5.5, an AI model, from public records. Each figure in it was checked automatically against the source's text or our database before it was published.

The Season 4 post for Killing Floor 3 appeared in the Steam announcements on Jul 23, 2026 and listed a new operation, Shadow Hunter, a new perk, Gunslinger, and a new map, Hastur Oil Platform. It also listed a new boss, Moorcroft, and the return of the Suicidal difficulty, which sits between Hard and Hell on Earth. In the balance changes, the Artemis weapon’s damage rose from 120 to 180, with its fire rate slowed so that its damage per second stayed about the same. The full notes are in that post in the game’s Steam announcements.1^,2^,3^,4^,5^,6^,7^,8^,9