Web-based Cloud Gaming service for Retro Game
https://github.com/giongto35/cloud-game Sounds exactly like what you are trying to do.
NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.
How to stream semi-retro games
1 project | reddit.com/r/cloudygamer | 15 Jan 2022
WebRTC for Low-latency Gaming on Cloud
1 project | reddit.com/r/WebRTC | 28 Jan 2021
CloudRetro – Multiplayer NES, Playstation and More Powered by WebRTC
1 project | news.ycombinator.com | 30 Dec 2020
Play Diablo on Browser Collaboratively
4 projects | news.ycombinator.com | 15 Apr 2021
Show HN: WebRTC Bandwidth Estimation. Send pre-recorded in multiple levels
1 project | news.ycombinator.com | 24 Jan 2022