Ok What i did:
Installed Riftcat on PC and Logged in.
Installed VRridge on Smartphone and started it.
Then Installed and Started Steam VR:
Settings all to Sit Only so no Motion tracking or Movment Tracking is active.
SteamVR is Running and i can see the White Room?!
Next i downloaded and installed Revive Injector:
https://github.com/LibreVR/Revive/releasesIf you have installed it you need to go to this Directory:
My Example:
D:\Program Files\Revive\Revive
and Find the ReviveInjector_x64/x86.exe Files
Next and Final you need to Drag the Reviveinjector File on to the XStoryPlayer.exe and it should inject the game into the running SteamVR.
That Works first try for me.<
EDIT: You need to deactivate Movement Tracking Ingame! Otherwhise you cannot crouch
