The Iron Chest is the third most common chest in 99 Nights in the Forest. It features a cylindrical lid and a sturdy metal frame, and is most commonly found around Campfire Levels 3–4.
| Picture | Name | Use |
|---|---|---|
 | Rifle + Ammo | The Rifle is a ranged weapon that uses Rifle Ammo and has a single-shot magazine capacity. |
 | Revolver + Revolver Ammo | A ranged weapon used to eliminate entities from a safe distance. |
 | Strong Flashlight | The Strong Flashlight emits brighter light than the Old Flashlight and can stun The Deer, but it must be recharged by standing near a Campfire or interacting with Fireflies. It has a maximum capacity of 100%. |
 | Good Sack | Can store up to 15 items, or 17 items when using the Scavenger Class. |
 | Defensive Blueprint Spikes | Places down up to 3 spike walls. |
 | Fuel Canister | The Fuel Canister is used to refuel the Campfire or recharge the Flamethrower, keeping both active and functional. |
 | Leather Body | The Leather Body decreases the amount of damage players take from enemies. |
 | Flower Seeds | Flower Seeds bloom into Flowers across the map one day after being planted. |
 | Spear | The Spear offers greater attack range and higher damage compared to Axes. |
 | (1) Diamond | An item used as lobby currency, Diamonds can be spent to unlock various Classes that assist players during their runs. |