The bigger offshore rig — 23 scientists, a 15-minute hackable crate that calls in 10 heavy scientists by Chinook, top-tier loot, and no recycler on board.
Mid-game puzzle monuments. Most need a green card → blue card progression and one fuse. Loot tier rises sharply (military crates, elite crates, components, scrap) — the meat of the monument economy.
| Keycards | 1× Blue |
|---|---|
| Fuses required | 0 |
| Scientists / NPCs | 23, plus 10 heavy scientists dropped by Chinook on the crate hack |
| Radiation | None |
| Recycler | No — pack your loot out |
| Workbench | None |
Large Oil Rig is the bigger offshore monument — a towering multi-level rig guarded by 23 scientists. Like Small Oil Rig you swipe a blue keycard and hack the Locked Crate, but the stakes are higher: hacking it calls in a Chinook that drops 10 heavy scientists, and there's no recycler on board. It's one of the highest-value PvE loot runs in the game.
Large Oil Rig pays out big: the Hackable Locked Crate (elite weapon/component pool), multiple military and elite crates, and 23+ scientist drops — a clean run is well north of 400 scrap plus top-tier weapons. The catch is the 10 heavy scientists the Chinook drops the moment you hack. They take roughly five headshots each versus three for a normal scientist, so bring plenty of ammo, armour and meds.
A blue keycard for the main puzzle. Some patches also gate an extra top-level room behind a red card — verify in-game, but blue is all you need for the Locked Crate.
23 scientists patrol the levels, and hacking the Locked Crate drops in 10 heavy scientists by Chinook on top of that. The heavies take about five headshots each.
No — unlike Small Oil Rig, Large has no recycler on board. Bring storage and recycle your loot back on land at Outpost or Bandit Camp.
15 minutes, same as Small Oil Rig. The Chinook with 10 heavy scientists arrives the moment you start the hack, so defend the position for the full timer.
Tough but possible for a skilled player — 23 scientists plus 10 heavies on the hack is a lot for one person. A duo or trio is far safer and faster, and helps hold the rig against rival teams.
Large Oil Rig is the higher-stakes of Rust's two offshore rigs. Where Small Oil Rig has ~12 scientists and a recycler, Large has 23 scientists, ten heavy scientists on the hack, and no recycler — more risk, more reward. The elite loot pool is the same as Cargo Ship and CH47 drops.
The defining moment is the hack: starting the Locked Crate timer calls in a Chinook full of heavy scientists, so most teams clear the rig first, set up in a defensible room, and only then start the timer. Bring a boat with storage since there's no on-site recycler. For everything you might pull, see the loot tables.