Welcome to the club, TigerQuoll!
The list I made is just to get people started. Any game you can find is more than welcome! I think it’s probably best to open a thread per game, so we can discuss them in a somewhat organised way.
People get their games from all over the place. Sometimes games have been released as freeware or are for sale on gog.com or other such sites. Sometimes people still have their old copies from back in the day, or buy boxed games from eBay for their collection. Sometimes the sources are some vague abandonware website, which is totally fine but we appreciate if people keep the links to themselves haha
Looking forward to your contributions!