All Weapons and Upgrades in The Callisto Protocol

There are six weapons in The Callisto Protocol, along with the GRP, that can all be upgraded. Three weapons and the GRP are given to players over the course of the game, with the other three requiring schematics to be able to purchase from the Forge. These weapons get significantly better with upgrades, but with limited resources, it can be hard to know what is worth investing in. This is every weapon and the GRP, as well as their upgrades, in The Callisto Protocol.

Every Weapon's Upgrades in The Callisto Protocol

When upgrading weapons in The Callisto Protocol, it's important to know what players are investing in. Three of these weapons require schematics, but this is each weapon and its upgrades.

Stun Baton

• Blocking Counter Attack - Gives Jacob the ability to perform a unique follow-up attack after blocking.
• Blocking Protection - Causes Jacob to take less damage when blocking.
• Blocking Feedback Damage - Deals damage to enemies when blocking.
• Increased Velocity Alloy Sheath - Increases Jacob's melee combo from three hits to four hits.
• Block Break - Allows Jacob to break enemies' limbs when blocking and stops the combo from being interrupted.
• Targeting Module Upgrade - This will cause the targeting system to focus on the chest and tentacles after a combo.
• Riot Control Swing - Unlocks the ability to perform a Heavy Attack.
• Damage Upgrade Level 1 and 2 - Increases the Stun Baton's damage.

Hand Cannon

• Stability Upgrade - Reduces the recoil of the Hand Cannon.
• High Capacity Magazine Upgrade - Doubles the magazine of the Hand Cannon.
• Magnum Rounds Damage Upgrade - Increases the damage of the Hand Cannon.
• TK23 "Boom Bullets" - Grants an alternate fire with delayed explosive rounds.

GRP

• Energy Upgrade Small, Medium, and Max - Increases the maximum energy of the GRP.
• GRP Velocity Upgrade Small, Medium, and Max - Increases the damage dealt when launching enemies and objects.
• GRP Recharge Speed Upgrade Small, Medium, and Max - Increases the speed that the GRP recharges.

Skunk Gun

• High Capacity Magazine Upgrade - Doubles the magazine capacity of the Skunk Gun.
• Stability Upgrade - Reduces the recoil of the Skunk Gun.
• Magnum Rounds Damage Upgrade - Increases the damage of the Skunk Gun.
• Swarming Rounds - Unlocks the Alternate Fire, firing homing ammo around enemies.

Related: Combat basics in The Callisto Protocol

Riot Gun

• Stability Upgrade - Reduces the recoil of the Riot Gun.
• Magnum Rounds Damage Upgrade - Increases the damage of the Riot Gun.
• High Capacity Magazine Upgrade - Doubles the magazine capacity of the Riot Gun.
• Explosive Rounds Upgrade - Unlocks the Alternate Fire of the Riot Gun to fire an explosive blast.

Tactical Pistol

• Magnum Rounds Damage Upgrade - Increases the damage of the Tactical Pistol.
• High Capacity Magazine Upgrade - Doubles the magazine capacity of the Tactical Pistol.
• Stability Upgrade - Reduces the recoil of the Tactical Pistol.
• TK33 "Burst Mode" - Unlocks the Alternate Fire of the Tactical Pistol to fire five rounds in a burst.

Assault Rifle

• High Capacity Magazine Upgrade - Doubles the magazine size of the Assault Rifle.
• Magnum Rounds Damage Upgrade - Increases the damage of the Assault Rifle.
• Stability Upgrade - Reduces the recoil of the Assault Rifle.
• TK63 "Homing Rounds" - Unlocks the Alternate Fire of the Assault Rifle, firing homing rounds that automatically hit enemies.

For more weapon guides, check out Tips and tricks for mastering the GRP in The Callisto Protocol here on Pro Game Guides.