Killing Floor 2 is a co-op wave survival shooter developed and published by Tripwire Interactive. Squads of up to six players hold out against relentless waves of Zeds, bio-engineered horrors that pour in faster and hit harder with every round. It launched into Early Access in 2015 and reached full release in November 2015, built on a heavily modified Unreal Engine 3.
Every match is a fight for breathing room. Between waves you bank Dosh and spend it at the Trader on weapons, armor, and ammo before the next swarm hits. Skillful kills trigger Zed Time, the signature slow-motion burst that turns a desperate hold into a highlight reel. Ten Perks, from Berserker and Commando to Field Medic and Demolitionist, level up as you play, so a coordinated squad can cover every role on the way to the boss wave.
Difficulty climbs from Normal up to brutal Hell on Earth, and the mode list runs well past standard Survival: six-on-six Versus, Endless, Weekly Outbreak, and Objective each change the rhythm. Sessions are short and endlessly replayable, which is exactly why groups keep a server running around the clock. On a private dedicated Killing Floor 2 server, your squad sets the difficulty, map rotation, and rules, and the server is always there waiting for the next wave.
Killing Floor 2 has a deep Steam Workshop scene. Servers pull custom maps built in the KF2 SDK, swap in custom weapons, and run server-side mods like ServerExt and ServerPerks for stat tracking and admin tools. The Controlled Difficulty mutator is the community standard for high-end runs, handing admins precise control over wave size, spawn rate, and Zed composition.
Killing Floor 2 leans hard on the CPU. Its Unreal Engine 3 core is single-thread heavy, so high-frequency CPUs are what keep tick rates stable when a full Zed wave and Zed Time hit at once. NVMe SSD storage keeps Workshop map downloads and level loads fast, and DDR5 RAM scales the server from a six-player co-op hold to a twelve-player Versus lobby with custom content loaded. Pick your plan by player count and how much Workshop content you plan to run.
| Server type | RAM needed | Players | Recommended plan |
|---|
| Co-op Survival (vanilla) | 3 GB | Up to 6 | 3 GB plan |
| Versus + Workshop maps | 5 GB | Up to 12 | 5 GB plan |
| Modded / Controlled Difficulty | 8 GB | 6 to 12 | 8 GB plan |
A private dedicated server hands your squad the whole control panel: difficulty, match length, map cycle, active mutators, and whether you run ranked vanilla or a fully modded Workshop loadout. Unlike a player-hosted game, a dedicated Killing Floor 2 server stays online when you log off, so your map rotation and admin setup are ready the moment the squad regroups.
Hosting with PingPlayers removes host advantage, frees you from your own hardware limits, and holds tick rates steady through the heaviest waves. Every plan includes high-performance hardware, full config control, automated backups, 24/7 human support, and Ping AI, which installs Workshop content, applies recommended settings, and clears common setup errors for you.
