BitBurner. Its an incremental game, which means you do some work, get to a point of diminishing returns, cash out with some upgrades and restart. Each time you restart you get a little further. Normally these types of games are super boring, but everything in BitBurner has an API.

Eventually the game gets super complex - stock markets, gangs, automations, combat systems, corporate espionage, etc. Its got a healthy open source community and discord as well

https://github.com/danielyxie/bitburner