There are lots of sites that let you play retro games in the browser. I don't want to link to any here but you can find them easily with a google search.
Often they only allow you to download a save state rather than an in-game save, meaning...
btw i feel this a good time to remind you guys that sea of thieves was made by rare, who also made DKC1-3 and DK64, alongside banjo kazooie and conker's bad fur day