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Rigs is also up for consideration. I know it's focused on multiplayer competitive but I think it does look fun. Doesn't sound like there's any level of microtransaction difference among players, too.
Anything else that should be up for consideration immediately? To note, I do think Superhypercube looks great but I'm having a hard time justifying the 29.99 price, so I think I will wait for a sale.
For what it's worth rigs has a decent amount of single player content.
I would recommend trying out the demo disc before deciding. Make sure to get the US version.
I will also say that you can't judge a VR game based on a video or screenshots. I have been wrong about blowing off a few already.