The key corresponds to the subscription: https://steamdb.info/sub/28801/apps/
Activation regions: GLOBAL, INCLUDING RUSSIA

210936 DLC Killing Floor - Chickenator DLC (Killing Floor - The Chickenator Pack) 24 ₽ at -76% 19 days ago
210931 DLC Killing Floor - KF Gold - Ash Harding (Killing Floor - Ash Harding Character Pack) 24 ₽ at -76% 26 days ago
210937 DLC Killing Floor - Robot Premium DLC Character (Killing Floor - Robot Special Character Pack) 24 ₽ at -76% 26 days ago
210933 DLC Killing Floor - Harold Lott Character Pack 24 ₽ at -76% 17 months ago
1250 Game Killing Floor 39 ₽ at -90% 6 days ago
35419 DLC Killing Floor - London's Finest DLC Character pack (Killing Floor "London's Finest" Character Pack) 49 ₽ at -75% 22 days ago
35425 DLC Killing Floor - Steampunk Character Pack 49 ₽ at -75% 24 days ago
210938 DLC Killing Floor - Golden AK47 Assault Rifle (Killing Floor - Golden Weapons Pack) 49 ₽ at -75% 26 days ago
1256 DLC Killing Floor - Outbreak Character Pack 49 ₽ at -75% 26 days ago
1257 DLC Killing Floor - Nightfall Character Pack 49 ₽ at -75% 26 days ago
35417 DLC Killing Floor - PostMortem Character Pack 49 ₽ at -75% 26 days ago
35429 DLC Killing Floor - Steampunk Character Pack 2 49 ₽ at -75% 26 days ago
210932 DLC Killing Floor - Urban Nightmare Character Pack 49 ₽ at -75% 26 days ago
210934 DLC Killing Floor - Community Weapon Pack 1 49 ₽ at -75% 2 months ago
35420 Game Killing Floor Mod: Defence Alliance 2 (Defence Alliance 2) No Price 9 days ago
1260 Tool Killing Floor SDK No Price 16 days ago
35428 Config Killing Floor Hungarian Depot (Red Orchestra 2: Heroes of Stalingrad - Single Player DLC) No Price 16 days ago