Sanc: Rise of the Tomb Raider
Lala Croft is on her way to the final McGuffin that would finally and hopefully put an end to the constant nagging of weirdo sidekick Jacob that believed he's captain wisdom or something with so many platitudes each time he tried to say something ...
But with how insanely dangerous that path to the end was , Lala finally understood why there were so few of those idiot tribesmen left despite their ancestors had settled there since ancient times : those guys insist in building extremely dangerous roads so it's no wonder most of them have died just trying to travel around.
Anyways, finally reaching the entrance of their "glorious" city in this icy underground, Lala finallymet with more ancient tribesmen, that all happened to be immortal cosplayers dressed like pseudo-byzantine troopers.
Oh well, after testing their "immortality" by killing most of them and understanding that their so called immortality only allowed them to respawn (proving that the world was indeed a videogame) some days after being killed, that was rather disappointing to Lala, but after clearing a way for herself she finally reached the city itself, the long desired McGuffin was there somewhere in the highest points of that icy city.
The end was close, but there were still people to be killed, ancient ruins to be burned down and a McGuffin to be retrieved !