This review contains spoilers

The best puzzle-platformed of all time and Valve's best game. Takes every idea that Portal introduced and runs with it while implementing fun new mechanics and having some incredible voice acting. You know a game's good when you've got J.K. mother-FUCKING Simmons on board.

Interesting level design, but kind of weak bosses

Frigid Outskirts best area first tried Lud and Zallen with summons

One of only a handful of genuinely well put together areas and the only genuinely fantastic bosses in the entire game. There is actual problem and puzzle-solving involved and a consistent verticality that really resonates with me. unfortunately it's still stuck in the bones of Dark Souls II.