There’s this indie game called The Gap. It’s about a man who is trying to find the cure to Huntington’s disease to save his family. He discovers that déjà vu is one’s own memories from a parallel universe. He uses this knowledge to search other realities to find the cure. It’s a slow burn but it’s so good.

This is actually one of my favorite games and it has the third place spot after Silent Hill 2 and SOMA. This isn’t a horror game just to be clear. I haven’t seen anyone talk about this game which is a real shame. I highly recommend it!

https://store.steampowered.com/app/1458300/The_Gap/