GameOgre.com and Aeria Games have teamed up to offer closed beta keys for Wolf Team to GameOgre.com forum members. All you have to do to get a beta key is to register for this forum and post in this thread. The beta key will be delivered by private message. Only one beta key per forum member. No multiple accounts.
Video:
YouTube - Wolf Team Gameplay Video by Aeria Games
Instructions for Using the Beta Key:
1. Go to Aeria Games website and login or create an account
https://login.aeriagames.com/user/login
2. Visit the Wolf Team website
Wolf Team Closed Beta Key Event | Wolf Team
3. Input beta key at the bottom of the page and click the submit button.
4. Download the game client at
http://wolfteam.aeriagames.com/download and then log in with your registered account.