Arctic Research Base

You need a card swipe. That's the full requirement to run the Arctic Research Base puzzle — put the fuse in to power the room, then swipe the cards. Keycards are single-use per swipe, so bring spares if you plan to run it more than once, and don't count on finding one on site.

Card swipe. You can craft keycards or find them in monument crates. Green cards are cheap and common, blue cards come from mid-tier monuments, and red cards are the ones worth planning around — our keycards guide covers where each colour comes from and what it costs to make.

Yes, Arctic Research Base has a recycler on site. That matters more than it sounds — you can break components down into scrap before you leave instead of hauling them home, which cuts what you're carrying if you die on the way back.

Arctic Research Base has low radiation, so bring rad-resistant gear — a hazmat suit covers it comfortably. Radiation protection stacks from individual clothing pieces too, so a full set of decent gear can be enough without a dedicated suit.

Arctic Research Base has low radiation, so you need some coverage rather than a dedicated suit. A full rad-resistant clothing stack holds low-rad zones, and a hazmat suit's 50% radiation protection trivializes them — you'll only take slow ticks if you stand still in a hot pocket wearing rags.