What can you do as a free member?

Member benefits illustration

Create your free account today and unlock all our premium features and tools to enhance your gaming experience.

Member benefits illustration

Create your free account today and save articles to your watchlist and get notified when they're updated with new information.

Member benefits illustration

Create your free account today and save your favorite games for quick access later, synced across all your devices.

Member benefits illustration

By creating a Game8 account and logging in, you'll receive instant notifications when someone replies to your posts.

Comment rating feature illustration

By creating a Game8 account and logging in, you can make use of convenient features in the comments section, such as rating and sorting comments.

Premium archive feature illustration

By creating a Game8 account and logging in, you can access Premium articles that are exclusively available to members.

Site Interface

Guest
Free Member
Article Watchlist
Game Bookmarks
Cross-device Sync
Light/Dark Theme Toggle
User Profiles
Direct Feedback
Comment Rating

Game Tools

Guest
Free Member
Interactive Map Access
Interactive Map Pins
Interactive Map Comments
Interactive Map Pins Cross-Device
Check List
Event Choice Checker
Deck Builder Cross-Device
Message Board Notification
Message Board Cross-Device
Build Planner
Stat Calculator
Diagnostic Tool
Weapon/Armor Wishlist

Want more information?Learn more

Once Human

ACS12 - Corrosion How to Get and Location

Add to Watchlist

ACS12 - Corrosion is a kind of Shotgun in Once Human. Read on to see how to get the ACS12 - Corrosion, its stats and weapon passives, the different materials required per tier, the location of its blueprint fragment, as well as the best ammo, accessories, and mods for ACS12 - Corrosion.

How to Get ACS12 - Corrosion

Get via the Wish Machine

Once Human - Wish Machine

The ACS12 - Corrosion's blueprint can be acquired via the Wish Machine. The blueprint or blueprint fragments of this weapon is included in these pools:

• Echoes From the Rift

Starchroms are needed to make a wish in the Wish Machine to get blueprints, which you can get via Battle Pass rewards and completing Journey tasks.

How to Get and Use the Wish Machine

Bought from the Blueprint Shop

Once Human - Blueprint Shop

This weapon's blueprint is bought from the Blueprint Shop, which can be accessed by pressing the G key when facing the Wish Machine. The blueprints are bought with Starchrom.

ACS12 - Corrosion Blueprint Fragment Locations

This weapon's blueprint or fragments cannot be found in any Mystical Crates.

ACS12 - Corrosion Stats and Passives

ACS12 - Corrosion Stats

ACS12 - Corrosion IconACS12 - Corrosion
DMG Fire Rate MAG
36x5 180 18
Crit Rate% Weakspot DMG% Crit DMG%
8 15 27
DMG Bonus
Suppression: Dealing more DMG against Deviants
Stability 42
Accuracy 32
Range 41
Reload Speed 13
Blueprint Fragment Type Wanderer
Rarity Legendary

The stats shown are the weapon's Tier I value without any blueprint enhancements and calibrations.

ACS12 - Corrosion Passives

Weapon Features
1 70% chance to trigger Power Surge with a hit, but will not inflict Power Surge status.
2 Power Surge can deal Crit hit, Power Surge Crit Rate +15%.
3 When Power Surge is triggered, Power Surge Crit DMG +15% for 6s. Effect can stack up to 10 times.
4 Power Surge DMG Factor +15%.

Power Surge - Deal Status DMG of 50% Psi Intensity once and inflict Power Surge status for 6s (Accuracy -40).
Shock Element type. The additional damage cannot Crit, cannot strike Weakspots, and will not decay with distance.
Actual Factor = 50% x (1 + Power Surge DMG Factor Bonus) x (1 + Power Surge Final DMG Bonus).

ACS12 - Corrosion Enhancement and Upgrades

Tiers and Crafting Materials

Tier New DMG Required Materials
I 36x5 TBA
V 210x5 TBA

Calibration and Blueprint Enhancement

Once Human - Blueprint Enhancement

Calibrating your weapons will increase your weapon's DMG and cost materials and Energy Links. Reaching a calibration level of 4, 7, and 10 will unlock additional calibration attributes. This upgrade method only applies to your current weapon.

Enhancing the star rank of your blueprint will also increase a weapon's DMG once it's been crafted. Weapons crafted prior to the enhancement of their blueprints will not be affected with the stat increase. The higher the blueprint's rarity, the more you can enhance the blueprint.

How to Upgrade Weapons

ACS12 - Corrosion Best Ammo and Accessories

Best Accessories and Ammo Type
Muzzle Extended Brake
Optic -
Tactical Tactical Laser Sight
Magazine Shotgun Drum Mag
Ammo Blasting Shotgun AP Ammo

These are the best accessories and ammo you can equip on the ACS12 - Corrosion to maximize the damage output and overall performance of the weapon.

ACS12 - Corrosion Best Mods

Surge Amplifier

Surge Amplifier Available Weapons / Armor Tier
All Weapons
V
Core Effect
Dealing Power Surge DMG grants Power Surge DMG +5% for 3s, up to 4 stack(s).

Once Human Related Guides

Once Human - Weapons

All Weapons List

All Weapon Types

All Weapon Types
Pistol Icon Pistols Shotgun Icon Shotguns Submachine Gun Icon SMGs
Assault Rifle Icon Assault Rifles Sniper Rifle Icon Sniper Rifles Light Machine Gun Icon LMGs
Crossbow Icon Crossbows Heavy Artillery Icon Heavy Artillery Melee Icon Melee

List of All Shotguns

Once Human - ACS12 - CorrosionACS12 - Corrosion Once Human - ACS12 - NetherworldACS12 - Netherworld Once Human - ACS12 - Pyroclasm StarterACS12 - Pyroclasm Starter
Once Human - DB12 - BackfireDB12 - Backfire Once Human - DB12 - Raining CashDB12 - Raining Cash Once Human - DBSGDBSG
Once Human - DBSG - DoombringerDBSG - Doombringer Once Human - Dual FuryDual Fury Once Human - Old HuntsmanOld Huntsman
Once Human - S870 - SandstormS870 - Sandstorm

Author

    Please participate in our site
    improvement survey
    12/2025
    Would you assist in
    improving Game8's site?
    ×
    This survey will take about 1 minute.
    Your answers will help us to improve our website.
    We are listening to our users' valuable opinions and discussing how to act on them.
    The information collected through this survey will be used for the purpose of improving our services. In addition, the information will only be disclosed a part of a statistic in a format that will not allow identification of personal information.
    Begin Survey

    All rights reserved

    Guide Index