Try VRTK, or virtual reality toolkit, for unity.  It's pretty much an out of the box VR editor, with grabbing, teleporting, climbing, running, and even more!  If you need advanced custom mechanics, it won't work too well.  For prototypes, it's the tool of choice.

4 hours ago, UnlovedDolphin said:

to code with

This is not a game design question. Moving to a more appropriate forum.