What are some actual hardcore games, something that i really have to sink some time into to git gud.
Antlantis no nazo. Even with a guide no one could probably beat it. It's a shit game, but probably one the the one the most amusing shitty and hard games ever made.
EVE literally has enough material to create an entire college major for. Or multiple college majors. I had a friend who got way too far into it and ended up reading entire textbooks on tax laws just to keep himself afloat ingame.
This is another great example.