Shrek in The Backrooms Materials & Crafting Items

Eight material types fuel weapon crafting in Shrek in The Backrooms. Every craftable weapon requires Scrap Metal as a base component. Rarity tiers — Common, Uncommon, and Rare — determine farming difficulty and which levels you must revisit for efficient collection.

Understanding material sources prevents wasted level runs. Common materials come from lockers and file cabinets on almost every level. Rare materials require targeted routes to The Office, The Island, and hidden rooms in late-game content.

Scrap Metal (Common): Found in lockers, file cabinets, and rubble piles in Motion. Used in every craftable weapon from Single Shooter through Nuke. Farm Lobby and Motion repeatedly for bulk collection.

Wood (Common): Drops from lockers and file cabinets. Required exclusively for Rocket Launcher (4 Wood). Accumulates naturally during standard locker runs — no dedicated farm route needed.

Plastic (Uncommon): Lockers and file cabinets. Required for Nuke (3 Plastic). Electric Wire (Uncommon): File cabinets and Office vending machines. Used in Rocket Launcher and Nuke.

Battery (Uncommon): Lockers and Office vending machines. Required for Ray Gun, Nuke, and Proximity Mine. Circuit Board (Rare): Office vending machines and Island treasure chests. Ray Gun and Nuke both need 3.

Plutonium (Rare): Island treasure chests and hidden rooms. Nuke requires 3 Plutonium — the hardest material to farm. Xukralt (Rare): Special containers in hidden areas, used for advanced crafts beyond standard weapons.

• Scrap Metal — Common — all weapons
• Wood — Common — Rocket Launcher
• Plastic — Uncommon — Nuke
• Battery — Uncommon — Ray Gun, Nuke, Proximity Mine
• Electric Wire — Uncommon — Rocket Launcher, Nuke
• Circuit Board — Rare — Ray Gun, Nuke
• Plutonium — Rare — Nuke
• Xukralt — Rare — advanced crafts

Scrap Metal drops from nearly every locker — expect one to two per locker on average. Circuit Board drops are rare from Office vending — expect one to three per full Office clear. Plutonium from Island chests is not guaranteed every visit.

Budget two to three Office replays for Ray Gun materials and five to eight Island visits for first Nuke Plutonium set depending on chest RNG.

Track materials against your next craft target rather than hoarding randomly. If Ray Gun needs three Circuit Board and you have two, prioritize Office vending runs over collecting more Scrap Metal you already have in excess.

Rare materials like Plutonium and Circuit Board should never be spent on Proximity Mines or Bear Traps when Nuke or Ray Gun crafts are incomplete. Trap weapons are B-tier luxuries — Ray Gun and Nuke deliver progression value.

Xukralt from special containers may support future craft recipes beyond the standard seven weapons. Collect Xukralt when found but prioritize Plutonium for Nuke completion first.

Material rarity in Shrek in The Backrooms determines how quickly you progress from Single Shooter to Ray Gun to Nuke. Scrap Metal, Wood, and Plastic appear in common lockers and file cabinets across Lobby, Motion, and early levels. Battery, Electric Wire, and Circuit Board require Office vending machines or Island treasure chests.

Plutonium sits at rare tier exclusively for Nuke crafting — 3 Plutonium per Nuke recipe. Treasure chests on The Island and hidden rooms throughout mid-game levels provide Plutonium drops. Xukralt appears in special containers for advanced crafts beyond standard weapon progression.

Track material inventory at Spawn Zone between levels. Running into The Office without Battery for Ray Gun crafting forces extra vending runs under Cursed Shrek pressure. Our Craft Planner tool helps calculate exact material deficits before entering difficult level chains.