>>347251 (OP)
https://buttplug.io/
I've seen a few threads in which owners of these things ask porn-game devs (or modders) to add support for their devices. The problem is that these are niche luxury items, and most people (even within pervert subcultures) don't actually own one. Devs and modders can't do any whitebox testing and debugging (e.g. measuring and mapping input range, establishing deadband tolerance, compensating for input lag) without a test-bench setup. Most people will be reluctant to spend hundreds of dollars on a high-tech sex toy for a hobby project - especially when it might lead to awkward conversations with mailman, wife, parents, pastor, etc.
Hence, the prospects for software development are dismal. It would probably go something like this: spend hours on integration work, release the module without any testing, receive unhelpful bug reports (e.g. "it doesn't work properly"), and eventually abandon the whole thing. Even if it works perfectly, you've dumped hours of work into servicing a handful of weirdos who own expensive tech. Those same hours could have generated normal content (or bugfixes) which are useful for your entire playerbase. You're letting the 99% starve in order to feed the 1%.
The buttplug.io library is intended to streamline the integration work and improve hardware compatibility, but it's still a dicey proposition for porn-game developers. However … if you browse the buttplug site (and its forum, discord, etc) then you might discover a few games that have already been modded (or specifically written) to work with your device.
