Bright Memory: Infinite

https://store.steampowered.com/app/1178830/Bright_Memory_Infinite/
releases 11 november
might not look that good but i think its a one man team

free if you own https://store.steampowered.com/app/955050/Bright_Memory/

I think it looks phenomenal for something done by a single person.

Of course looks can also be deceiving when it comes to game trailers.

I think he started solo, but now has a team. I don't know if this expands the original, but that was less than an hour long. No-one's making a full game like this on their own. Clearly an excellent graphics guy, though.