WWII Milsim · Strategy · Cosmo Hub
Hell Let Loose
Expression Games’ 100-player WWII tactical shooter. Communication is mandatory. The Garrison is the round.
Welcome to the Cosmo strategy hub for Hell Let Loose. Black Matter started this 100-player WWII tactical shooter in 2019 early access; Team17 published the 1.0 release in 2021; Expression Games continues development through Update 19 and the upcoming 2026 Conquest game mode. Hell Let Loose rewards squad communication, sector-by-sector positioning, and resource management over individual aim. A team that builds Garrisons wins; a team that does not loses, regardless of how many kills the top frag-getter posts. Everything below is vanilla, mechanics-only knowledge — the combat loop, communication structure, roles and kits, the Garrison and Outpost spawn system, resources, map knowledge, tank play, artillery and recon, audio and settings, and pro tips.