The Sinking City 2

The Sinking City 2 ERC Crates Guide: How to Open Emergency Relief Crates

Learn how ERC Crates work in The Sinking City 2, what the activator pen does, and which rewards to prioritize.

2026-08-23

What Are ERC Crates?

ERC Crates, or Emergency Relief Crates, are high-value containers in The Sinking City 2. They usually reward inventory upgrades, weapon parts, materials, or route-changing survival items. If you see a white or gold upgrade-style crate, do not leave the area until you know whether you can open it.

ERC Crates connect directly to exploration, Talent Points, weapon planning, and safe room loops.

How to Open ERC Crates

StepAction
1Search nearby rooms for an activator pen, key item, or route clue
2Read documents before leaving the area
3Check locked doors, side halls, and upper floors
4Return to the crate after opening shortcuts
5Save after collecting the reward

Some crates may be easy to see but delayed by a puzzle or side route. If you cannot open one yet, write down the location and return later.

ERC Crate Rewards

Reward TypeWhy It Matters
Inventory upgradesLets you carry more ammo, healing, and quest items
Weapon upgradesReduces ammo cost in future fights
Crafting materialsSupports long routes and boss preparation
Survival itemsHelps before enemies, bosses, and distant safe rooms

ERC Crates and the Activator Pen

The activator pen is the key phrase to remember. If a crate will not open, search for the pen-like item, nearby clues, or route steps that unlock the crate. The walkthrough is the best route companion.

FAQ

Are ERC Crates worth opening?

Yes. They often contain upgrades that make the rest of the game easier.

Can ERC Crates be missed?

Some may be missable if you advance too far without checking side rooms. Save often and clear major areas before leaving.

What should I prioritize from ERC rewards?

Inventory and weapon upgrades usually have the biggest long-term value.