Are VR games free?

I'm curious, could you clarify for me if virtual reality (VR) games are typically offered for free or if they require a monetary investment? As someone who's interested in exploring this exciting realm of gaming, I'm eager to understand the cost implications involved. Are there any free-to-play VR games available, or is it more common to find them priced similarly to traditional video games? Your insights would be greatly appreciated as I navigate this exciting but potentially costly new world of VR entertainment.