Ok, so i when i would open the game, "Steam VR" would automatically try to open for it Even though i didnt even have it In my steam library. what i ended up doing was just closing Steam VR as soon as it would come up and it Works Now! But to answer your question, yes i would run the full version. even though i had a free key i bought the game to see if it would fix my problem. All i did was close down steam vr thru my task manager and its good now. I LOVED THE GAME BTW!!!!!!