Genesis64 is what might be called a 'Fantasy Console', based on the C64 and written in TypeScript.
What it is: right now a mess of typescript code, which parses C64 basic and let you run it in a browser, it also emulates the c64 screen (the text mode only atm)
What it (hopefully) will be: a system to make c64 *like* games (with a twist, but that's for another post) in the browser or something you could put on a wiki to demonstrate basic commands.
Bugs?: Heck yes! (and I guess a lot of them that I haven't even thought of - so I'd appreciate it if you'd point out any you find :) (DM me on twitter) )
Note: A lot of the VIC is working, namely screen ram: $0400, color ram: $d800 and ALL sprite registers, as well es memory setup registers.
What else: It's rough as guts, alpha (early alpha) and honestly not very useful atm. Still I don't mind if you give it a go and tell me that it is *worth* the time I dump into it ;) .