You have to download these files and then SteamVR will start automatically when you open the .exe file:
In one level you fight a big Giant in an old temple with magic and sword.
In the other level you fight against the Volcanic Dragon, what really looks awesome!
The controls feel really good, although I’d like the option to change the bow to the other hand.
Here is some gameplay of the two levels (commented in german), if you want to have a look: