Action RPGs such as Fallout 4 and Skyrim have gotten VR versions, as has Doom, but The Last Guardian demo offers a completely different sandbox in which to test the technology. No guns or dragons, just some kid playing in some ruins with some really funky looking bird-dog-cat. It's also free. If you have a PS VR headset and any ounce of you is human and still has a heart, go try The Last Guardian VR demo right now.