Closed Beta Keys are temporary licenses to playtest a game under active development. They can be revoked at any time. Usually our Closed Beta Keys are valid until release.
The closed beta key allows you to activate one copy of the game to your steam account. As soon as the closed beta key gets revoked (e.g. on release) the game is removed from your library.
A Key can only be activated when you do not yet own the corresponding game.
At the end of a closed beta period we will give away some release keys to the most valued feedback-givers (feedback via bugtracker linked within the closed beta game). There is no legal claim to get one of those if participating in the closed beta. Our Staff will pick who will get a key by personal estimate