Update: Though Tripwire said the “extra-long Free Weekend on Steam” was “starting later today”, it seems not to have started yet. So. Mysteries.
Tripwire Interactive really, really want you to check out Killing Floor 2‘s new Back & Kickin’ Brass update it seems, as they’re letting players have a crack at the undead re-deadening co-op shooter for zero money on Steam until next Tuesday at 6pm UK time. The update brings a new game mode, some new weapons, and a new steampunk-inspired level to do violence at things inside of. Crank your mechanical eye-holes towards the trailer below: