Hello everyone, this is a step-by-step instruction on how to install the KF3 beta

How To Get Your Giveaway
1. Create or log in to your Alienware Arena account.
2. Click the "GET KEY" button.
3. Open your Steam client, click "Games" in the top menu and choose "Activate a Product on Steam…"
4. Follow the on-screen instructions and insert your key.
5. Right click on Killing Floor 3 in your Steam Library > Properties > Betas
6. In the “Private Betas” section, enter this password and press "Check Code": S4Atp8Jmk2dyrW
7. Once the code has been entered, select “closed_beta_04” in the “Beta Participation” dropdown window and make sure the game in your library says “Killing Floor 3 [closed_beta_04]”

https://eu.alienwarearena.com/ucf/show/2172315/boards/contest-and-giveaways-global/Giveaway/killing-floor-3-closed-beta-key-giveaway