Weapon and upgrade locations

01 · Do this

Follow the route in order.

1. 01

   Equalizer Mk. II is the starting pistol. Field Surgeon is the shotgun found in the Chapter 2 saloon route, and The Minuteman is the Tommy gun in the Chapter 2 Generator Room route.

2. 02

   Black Reef Longshot is the rifle in the Chapter 3 Hospital route, in the room south of the Prosthetics Workshop. Linguist's Folly is the later grenade launcher; follow the chapter walkthrough and its named pickup rather than assuming the Fish Market attachment is the weapon itself.

3. 03

   In the Miskatonic Library Annex, meet Corentin and take the ERC Activator Pen. Return to the first-floor ERC crate to collect the Voss Compensator pistol part.

4. 04

   At Akeley Hospital, take the Woman's Face route into the west wing and use the nearby ERC Activator Pen on the Hospital crate. The crate supplies a shotgun upgrade; the exact part name can vary by the guide's naming, so follow the crate landmark rather than a guessed room number.

5. 05

   Continue through the Hospital's Prosthetics Workshop, assemble the face, then enter the Materials room. The Black Reef Longshot rifle is beside the note in the next room.

6. 06

   After the Hospital digit notes are complete, enter Storage with code 1308. The locked room contains Doyle's Cold Blood, the continuous-fire slow attachment for the submachine gun.

7. 07

   In the Fish Market, solve the Salt Storage route first if needed, then enter 1496 at the Locker Room safe. It contains Pyre's Ocularum, the grenade-launcher upgrade for clustered enemies.

8. 08

   Keep the base list separate from add-ons: the official Chthonic Arsenal announcement names Shale Mary, Breakwater, and Tektite Tommy as three DLC weapons. Holloway Manor's Bucking Bronco is also add-on content, not part of the five-weapon base list.

9. 09

   Use the map and ERC crate landmarks to backtrack safely; this page does not rank weapons or promise that every attachment has the same name across difficulty or guide terminology.

02 · Confirm

What success looks like.

• The five base-game named weapons are Equalizer Mk. II, Field Surgeon, The Minuteman, Black Reef Longshot, and Linguist's Folly.
• The Annex ERC crate yields the Voss Compensator pistol part.
• The Hospital ERC route yields a shotgun upgrade.
• The Materials route yields the Black Reef Longshot rifle.
• Hospital Storage 1308 yields Doyle's Cold Blood for the submachine gun.
• Fish Market Locker Room 1496 yields Pyre's Ocularum for the grenade launcher.
• Shale Mary, Breakwater, Tektite Tommy, and Bucking Bronco are recognized as add-on weapons rather than silently counted as base-game pickups.

03 · Boundaries

Read this before changing files.

• The five-name list is a base-release inventory answer, not a tier list, damage comparison, or promise that every attachment has been catalogued.
• The DLC boundary is current as of 2026-09-16: Chthonic Arsenal and Holloway Manor are separate add-ons. A later weapon pack would need a separate verification pass.
• ERC crates require the Activator Pen, and some routes are gated by face masks, keys, or the Hospital investigation. Do not search for a crate before its gate is open.
• A weapon part's name and the item roll around it can be presented differently by a guide or difficulty setting; the location and route are the stable answer.

04 · Undo

How to roll it back.

• No file or configuration change is needed. If an ERC crate is still sealed, keep progressing for its Activator Pen rather than forcing it.
• If a pickup is missed, return through the unlocked shortcuts after the relevant face, key, or code objective is complete.