Looking for challenging exploration
I'm looking to immerse myself in a 3D game world or story where getting from A to B is the challenge. Old or new.
I want to get lost in dense forest, trapped in complex caverns, stuck in ancient ruins.
My favorite moments in gaming are when I'm hunting for secrets, or solving environmental puzzles, or climbing through, up, and around things to get to hidden areas. When I have to stop and think about how to get somewhere, and be observant.
A 3D version of La Mulana would be ideal. Something without white or yellow paint telling you where to go.
Parts of games I've enjoyed the most:
Tomb Raider (challenge tombs)
Indiana Jones and the Infernal Machine (most levels)
Prince of Persia series (but too easy)
Thief series (sneaky parkour, loot/secret hunting)
Zelda games (harder dungeons)
Only restriction is I game on a PC without the internet, so it has to be on the GOG store or have a downloadable installer.
Edit: I'm looking for a first-person game ideally, but 3rd person could also work if done well enough. Games that are 2D in exploration, no matter how well done, don't scratch the itch for me. Needs to use the 3rd dimension for enough complexity.