Wonder no more: https://curiousjp.itch.io/caveman-bios-teaches-erotic-typing

Although it seems likely this may raise more questions for you, or anyone, than it answers.

Edit: Like "Where did I put that Xbox controller..?"

Yup! One of the first programs I wrote for Buttplug was the Game Vibration Router. It hijacks force feedback signals from games using DLL injection and reroutes them to hardware:

https://www.youtube.com/watch?v=W6qbNcgl2fI

I also built Twine (interactive fiction engine) bindings because our tutorial needed to be branching:

https://github.com/buttplugio/buttplug-twine

We're working with a couple of different game studios on Unity integration, that's just taking a while because I'm having to rework our C# codebase a bit first.

I can certainly see that taking off if there was any twitch-like streaming platform that allowed for such content. Heck, just integrate it with twitch chat while we're at it. Let's be real though, twitch would ban anybody streaming like that and there's not really any alternatives that wouldn't, but you have to admit there'd be an audience.

Also yes, .io really is the perfect TLD

Chaturbate models regularly use vibrators that integrate with donations (and react in different ways to different donation amounts), I'm at work so not going to be looking that one up but it exists.

Or so my friend tells me...

Last I heard Chaturbate had banned gaming though, so that probably wouldn't work. Something to do with them being worried about copyright issues I believe.

And IMHO, there should be Oscars (or Razzies) for how some of users react to the different levels.

Not only does it exist (and was created by models themselves), it's patented! :(

This idea isn't entirely without prior art because some adult streaming sites support interactive vibrators.

There is. https://plexstorm.com. They're still fairly new, but that's exactly what they're trying to do.

There are possibly plenty of cam websites that would integrate or create a new section for larger increase in audience and money.

I recently made a video where I got the old Rez Trancevibrator working with Rez Infinite. :) https://www.youtube.com/watch?v=rAYdo1vDNak

There seem to be a number of existing integrations to pilot the toy from a media source, so a video game link is right on target

Edit: was wrong, rewrote the answer