Large Oil Rig

You need a fuse, a blue keycard and a red keycard. That's the full requirement to run the Large Oil Rig 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.

Fuse, Blue+Red card. 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, Large Oil Rig 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.

Large Oil Rig 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.

Large Oil Rig 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.

There's no official respawn timer — Facepunch doesn't publish one, and in the game files the rig's Locked Crate has no fixed respawn value because it's spawned as an event rather than on the normal crate cycle. What you'll actually see is server-dependent: after a crew starts the Locked Crate's 15-minute hack, loots it and clears out, Large Oil Rig resets over the following stretch — scientists repopulate and a fresh Locked Crate appears — and modded or high-pop servers tune that cycle differently. The same goes for console: community-reported windows vary and none are official numbers. Treat a rig you just watched get taken as dead for a while, and scout the crate from a distance before committing a boat.