It doesn't work in Chrome because apparently the web player uses NPAPI which Google has actively disabled. Apparently you can still turn it on manually.
https://en.wikipedia.org/wiki/NPAPI
The thing that saddens me that is if you would not burn out on this project and you manage to push it to a semi-complete state, if you'd ever release it in any form outside of retro websites the response to it would probably be disheartening to say the least :/