The Ultimate PS3 Emulator
If you have a hankering to play some old PlayStation 3 games, then RPCS3 is something you should take a peek at. While there are a total of over 6000 games on the platform, not 100% of them launch but 100% of them do at least something. Of the games available, there is an impressive 3233 of them which work perfectly on the emulator which should keep you busy for at least a few hours.
RPCS3 is open source and will run on just about any PC, but you have to supply your own games. Though thousands are playable, RPCS3 does not provide the actual games; that is on you to have handy. If you are stuck unable to purchase a modern GPU to play the latest games on, why not take a look for a box of old PS3 games and wander down memory lane?
There have been over 6,000 games and programs tracked over the emulator's lifespan, so to get every single one of them to some degree of booting up is an incredible achievement. It's important to note, though, that of the emulator's five tiers of playability, only one -- "Playable" -- is worth your time.