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The Callisto Protocol

All Reforge Weapon Upgrades and Costs

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The Callisto Protocol - All Reforge Weapon Upgrades and Costs

Players can purchase upgrades for weapons and other items in The Callisto Protocol. Read on to learn more about the Reforge Weapon Upgrades, their costs, and how to upgrade weapons.

List of Contents

All Reforge Weapon Upgrades and Cost

Jump to a Weapon Upgrade Tree
Hand Cannon Stun Baton GRP Skunk Gun
Riot Gun Tactical Pistol Assault Rifle

Hand Cannon Upgrades

The Callisto Protocol - BI-55 Pistol
BI-55 Pistol Hand Cannon Upgrade Tree
TK23 Boom Bullets
Magnum Rounds Damage Upgrade
Stability Upgrade High Capacity Magazine Upgrade
BI-55 Pistol Hand Cannon Base Weapon

TK23 Boom Bullets

Weapon Upgrade Pre-Requisite Credits
Effect
TK23 "Boom Bullets" Magnum Rounds Damage Upgrade 1800 Credits
Adds alt-fire module that fires explosive rounds. Rounds explode on a delay after impact.

Magnum Rounds Damage Upgrade

Weapon Upgrade Pre-Requisite Credits
Effect
Magnum Rounds Damage Upgrade Stability Upgrade 600 Credits
Increases the damage of the BI-55 Pistol.

Stability Upgrade

Weapon Upgrade Pre-Requisite Credits
Effect
Stability Upgrade None 200 Credits
Reduces weapon recoil.

High Capacity Magazine Upgrade

Weapon Upgrade Pre-Requisite Credits
Effect
High Capacity Magazine Upgrade Stability Upgrade 200 Credits
Increases ammo capacity of the BI-55 Pistol.

Stun Baton Upgrades

The Callisto Protocol - Stun Baton
Stun Baton Upgrade Tree
Damage Upgrade Level 2 Blocking Feedback Damage Targeting Module Upgrade
Damage Upgrade Level 1 Blocking Protection Block Break
Riot Control Swing Blocking Counter Attack Increased Velocity Alloy Sheath
Stun Baton Base Weapon

Damage Upgrade Level 2

Weapon Upgrade Pre-Requisite Credits
Effect
Damage Upgrade Level 2 Damage Upgrade Level 2 2700 Credits
Maxes out the damage of the Stun Baton.

Damage Upgrade Level 1

Weapon Upgrade Pre-Requisite Credits
Effect
Damage Upgrade Level 1 Riot Control Swing 900 Credits
Increases Stun Baton damage.

Riot Control Swing

Weapon Upgrade Pre-Requisite Credits
Effect
Riot Control Swing None 300 Credits
Unlocks a new, heavier attack. Ideal for extreme situations requiring damage over control.

Blocking Feedback Damage

Weapon Upgrade Pre-Requisite Credits
Effect
Blocking Feedback Damage Blocking Protection 2700 Credits
Allows you to release a retaliatory charge when blocking a strike.

Blocking Protection

Weapon Upgrade Pre-Requisite Credits
Effect
Blocking Protection Blocking Counter Attack 900 Credits
Take less damage when blocking.

Blocking Counter Attack

Weapon Upgrade Pre-Requisite Credits
Effect
Blocking Counter Attack None 300 Credits
Unlocks a new low attack for use following a successful block of an enemy's final attack. Opens the enemy to follow-up attacks.

Targeting Module Upgrade

Weapon Upgrade Pre-Requisite Credits
Effect
Targeting Module Upgrade Block Break 2700 Credits
Increases the chance of an aim snap to the center of mass or exposed virus following a combo ender.

Block Break

Weapon Upgrade Pre-Requisite Credits
Effect
Block Break Increased Velocity Alloy Sheath 900 Credits
Breaks an enemy's arm if they block your attack.

Increased Velocity Alloy Sheath

Weapon Upgrade Pre-Requisite Credits
Effect
Damage Upgrade Level 2 Damage Upgrade Level 2 2700 Credits
Maxes out the damage of the Stun Baton.

GRP Upgrades

The Callisto Protocol - GRP
GRP (Gravity Restraint Projector) Upgrade Tree
GRP Recharge Speed Upgrade - Max Energy Upgrade - Max GRP Velocity Upgrade - Max
GRP Recharge Speed Upgrade - Medium Energy Upgrade - Medium GRP Velocity Upgrade - Medium
GRP Recharge Speed Upgrade - Small Energy Upgrade - Small GRP Velocity Upgrade - Small
GRP (Gravity Restraint Projector) Base Weapon

GRP Recharge Speed Upgrade - Max

Weapon Upgrade Pre-Requisite Credits
Effect
Energy Upgrade - Max Energy Upgrade - Medium 2700 Credits
Maxes out the GRP's energy capacity.

GRP Recharge Speed Upgrade - Medium

Weapon Upgrade Pre-Requisite Credits
Effect
Energy Upgrade - Medium Energy Upgrade - Small 900 Credits
Increases the GRP's max energy capacity.

GRP Recharge Speed Upgrade - Small

Weapon Upgrade Pre-Requisite Credits
Effect
Energy Upgrade - Small None 300 Credits
Increases the GRP's max energy capacity.

Energy Upgrade - Max

Weapon Upgrade Pre-Requisite Credits
Effect
GRP Recharge Speed Upgrade - Max GRP Recharge Speed Upgrade - Medium 2700 Credits
Maxes out the GRP's recharge rate.

Energy Upgrade - Medium

Weapon Upgrade Pre-Requisite Credits
Effect
GRP Recharge Speed Upgrade - Medium GRP Recharge Speed Upgrade - Small 900 Credits
Improves the GRP's recharge rate.

Energy Upgrade - Small

Weapon Upgrade Pre-Requisite Credits
Effect
GRP Recharge Speed Upgrade - Small None 300 Credits
Increases the GRP's recharge rate.

GRP Velocity Upgrade - Max

Weapon Upgrade Pre-Requisite Credits
Effect
GRP Velocity Upgrade - Max GRP Velocity Upgrade - Medium 2700 Credits
Maxes out the GRP's launch strength. Target can impact at near fatal speeds.

GRP Velocity Upgrade - Medium

Weapon Upgrade Pre-Requisite Credits
Effect
GRP Velocity Upgrade - Medium GRP Velocity Upgrade - Small 900 Credits
Further increases the GRP's launch strength. Targets can be greviously injured including limb loss.

GRP Velocity Upgrade - Small

Weapon Upgrade Pre-Requisite Credits
Effect
GRP Velocity Upgrade - Small None 300 Credits
Increases the GRP's launch strength. Targets can be injured on impact.

Skunk Gun Upgrades

The Callisto Protocol - Skunk Gun
Skunk Gun Upgrade Tree
Swarming Rounds
Magnum Rounds Damage Upgrade Stability Upgrade
High Capacity Magazine Upgrade
Skunkworks Shotgun "Skunk Gun" Base Weapon

Swarming Rounds

Weapon Upgrade Pre-Requisite Credits
Effect
High Capacity Magazine Upgrade None 400 Credits
Increases the ammo capacity of the Skunk Gun.

Magnum Rounds Damage Upgrade

Weapon Upgrade Pre-Requisite Credits
Effect
Stability Upgrade None 300 Credits
Reduces weapon recoil.

Stability Upgrade

Weapon Upgrade Pre-Requisite Credits
Effect
Magnum Rounds Damage Upgrade Stability Upgrade 1200 Credits
Increases the damage of the Skunk Gun.

High Capacity Magazine Upgrade

Weapon Upgrade Pre-Requisite Credits
Effect
Stability Upgrade High Capacity Magazine Upgrade 1200 Credits
Reduces weapon recoil.

Riot Gun Upgrades

Callisto Protocol - Riot Gun Upgrade Tree
RIot Gun Upgrade Tree
Explosive Rounds Upgrade
High Capacity Magazine Upgrade
Magnum Rounds Damage Upgrade Stability Upgrade
Riot Gun Base Weapon
(TK4 Riot Shotgun)

Explosive Rounds Upgrade

Weapon Upgrade Pre-Requisite Credits
Effect
Explosive Rounds Upgrade High Capacity Magazine Upgrade 2700 Credits
Upgrades the Riot Gun's projectiles, which explode shortly after impact. Deals extra damage to anything within the blast radius.

High Capacity Magazine Upgrade

Weapon Upgrade Pre-Requisite Credits
Effect
High Capacity Magazine Upgrade Stability Upgrade 900 Credits
Increases the ammo capacity of the Riot Gun.

Magnum Rounds Damage Upgrade

Weapon Upgrade Pre-Requisite Credits
Effect
Magnum Rounds Damage Upgrade Stability Upgrade 300 Credits
Increases the damage of the Riot Gun.

Stability Upgrade

Weapon Upgrade Pre-Requisite Credits
Effect
Stability Upgrade None 300 Credits
Reduces weapon recoil.

Tactical Pistol Upgrades

Callisto Protocol - Tactical Pistol Upgrade Tree
Tactical Pistol Upgrade Tree
TK33 "Burst Mode"
High Capacity Magazine Upgrade Stability Upgrade
Magnum Rounds Damage Upgrade
Tactical Pistol Base Weapon

TK33 Burst Mode

Weapon Upgrade Pre-Requisite Credits
Effect
TK33 "Burst Mode" High Capacity Magazine Upgrade 3600 Credits
Adds alt-fire module with high-damage 5 round burst.

High Capacity Magazine Upgrade

Weapon Upgrade Pre-Requisite Credits
Effect
High Capacity Magazine Upgrade Magnum Rounds Damage Upgrade 900 Credits
Increases the ammo capacity of the Tactical Pistol.

Stability Upgrade

Weapon Upgrade Pre-Requisite Credits
Effect
Stability Upgrade High Capacity Magazine Upgrade 900 Credits
Reduces weapon recoil.

Magnum Rounds Damage Upgrade

Weapon Upgrade Pre-Requisite Credits
Effect
Magnum Rounds Damage Upgrade None 300 Credits
Increases the damage of the Tactical Pistol.

Assault Rifle Upgrades

Callisto Protocol - Assault Rifle Upgrade Tree
Assault Rifle Upgrade Tree
TK63 "Homing Rounds" Stability Upgrade
Magnum Rounds Damage Upgrade
High Capacity Magazine Upgrade
Assault Rifle Base Weapon

TK63 Homing Rounds

Weapon Upgrade Pre-Requisite Credits
Effect
TK63 "Homing Rounds" Stability Upgrade 4500 Credits
Adds alt-fire module that fires smart ammunition. Fired rounds adjust themselves to hit moving targets.

Stability Upgrade

Weapon Upgrade Pre-Requisite Credits
Effect
Stability Upgrade Magnum Rounds Damage Upgrade 4500 Credits
Reduces weapon recoil.

Magnum Rounds Damage Upgrade

Weapon Upgrade Pre-Requisite Credits
Effect
Magnum Rounds Damage Upgrade High Capacity Magazine Upgrade 1500 Credits
Increases the damage of the Assault Rifle.

High Capacity Magazine Upgrade

Weapon Upgrade Pre-Requisite Credits
Effect
High Capacity Magazine Upgrade None 500 Credits
Increases the ammo capacity of the Assault Rifle.

How to Upgrade Weapons

Use Callisto Credits at the Reforge

Callisto Protocol - Use Callisto Credits

Players can upgrade weapons and other items by purchasing them at the Reforge with Callisto Credits. If a player has insufficient credits, items like Energy Converter or Contraband Pack can be sold for Callisto Credits.

How to Farm Callisto Credits

The Callisto Protocol Related Guides

Callisto Protocol - Tips and Tricks

Tips and Tricks:
Beginner's Guide to The Callisto Protocol

All Tips & Tricks

Skins and Cosmetics
List of Skins How to Get the Biophage Skin
How to Get the Retro Prisoner Skin How to Get the Founder's Pack
How to Get the Engineer Skin How to Get Watchtower Skin
How to Get Outer Way Skin -
Game Mechanics & Upgrades
All Reforge Weapon Upgrades Inventory Upgrade Guide
How to Get Armor How to Heal
How to Farm Callisto Credits Ammo Farming Guide
How to Perform a Quick Kill -
Weapons & Combat
Best Upgrades Guide Gun Controls Guide
How to Dodge Melee Attacks How to Block
Best Weapons Guide Perfect Dodge Guide
System / FAQs
Difficulty Settings Guide Best Settings Guide
New Game Plus Guide Season Pass Price and Contents
All Permanent Events and Missable Content List of All Death Animations/Scenes
How to Fix Stuttering and Frame Rate Issues Can You Save the Trapped Worker?
How to Pre-Load How to Fix Low Quality Text
How to Use Photo Mode Is There a Map?
How to Reset Checkpoints Contagion Mode Guide
How to Save: Can You Turn Off Autosave? What are Beta Paths?
All Weapon Schematic Locations Ending Explained
Can You Quick Turn? Can You Skip Cutscenes?
List of Unlockables -

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