The QuiVr Alpha is aimed at generating community feedback on game mechanics at an earlier state of development than any request for payment seems reasonable.
This is the free QuiVr Alpha test! It is intended to give players the chance to experience gameplay mechanics in a very early state (before it even seems reasonable to ask for any money for early access).
It will be updated regularly until the Early Access phase for the game begins, at which point the Alpha will remain available for an undetermined amount of time, though without updates. Eventually, the Alpha will either be transitioned into a Demo or closed entirely.