The Summer Sideshow 2018: Treacherous Skies Title update for Killing Floor 2 has 10 achievements.
Complete Airship on Survival Normal difficulty
Complete Airship on Survival Hard difficulty
Complete Airship on Survival Suicidal difficulty
Complete Airship on Survival Hell On Earth difficulty
Collect all the items (Steam Cells) on Airship
Complete Lockdown on Survival Normal difficulty
Complete Lockdown on Survival Hard difficulty
Complete Lockdown on Survival Suicidal difficulty
Complete Lockdown on Survival Hell On Earth difficulty
Collect all the items (Batteries) on Lockdown