Subnautica this year when Sony ofered the game. Only thing i knew about the game was the name and the trailer that was on the PS Store. Loved it.
Games i buy, only if they are sequels from games i love i also go as blind as posible to avoid spoilers and usually enjoy them alot this way.
I did this all the time when i was a kid without internet. Bought games like Resident Evil, Tomb Raider, Phantasmagoria 2, Monkey Island, and many more just by walking on a store, looking at the game cover and back cover, and buying the game without knowing what to expect. Lots of gems and crap bought this way, but as a kid i enjoyed almost everething as almost everething felt new, even the crapy games.