4. Antstream Arcade

Availability
Antstream Arcade’s bounty of old-school and retro titles made the news last year as the first third-party streaming service allowed on Xbox consoles. This brought a select few NES and PlayStation titles to Microsoft’s platform for the first time ever, though the service is available across the range of Windows PCs and Macs, as well as on Android and iPhones. You can run it through a beta web app, and it’s also available as an app on Epic Games Store, with the hope that it will eventually come to Steam as well. Essentially, if it can play games, it can run Antstream.
Game Library
Antstream boasts it has 1,333 games currently available to download across a pretty ludicrous range of old-school consoles, from the Amiga to the MSX2 and even the PlayStation 1. Of course, not all consoles are created equally. Licensing on older titles is a particularly scarce hellscape. You won’t find classics like Metal Gear Solid for the PS1 but you’ll instead get Glover and Worms. You’ll find Zombies Ate My Neighbors on the Sega Genesis, but not any of those games that really made the console what it was like to play Echo the Dolphin.
Pricing
Antstream costs $30 annually, but if you really don’t want to remember to subscribe every year, you can pay $80 for a lifetime subscription. “Lifetime” should be better referred to as “so long as it exists.”
Other Considerations
You should really take a second look at the games library to see if there’s anything you’re truly interested in revisiting. There’s been a few titles like the Atari 50 collection from developers Digital Eclipse that also might be worth a look if you want to play some older titles permanently.