Home > The Callisto Protocol > All The Callisto Protocol Reforge Weapon Upgrades & Their Costs

The Callisto Protocol Reforge Weapon Upgrades & Costs

Published Date :

The Callisto Protocol is the most recent adventure and horror-survival videogame by Striking Distance Studios. Set in the year 2320, you play as Jacob Lee entrapped on the Callisto Moon with hordes of monsters. As you progress, you get several weapons to eliminate these enemies. Having said that, you also need to upgrade your weapons to survive more challenging and brutal enemies. You can buy these upgrades from different Reforge machines throughout the game. But every upgrade costs a certain amount of Callisto Credits. So, check out our guide on all the Reforge weapon upgrades and their costs in Callisto Protocol.

All Reforge Weapon Upgrades & Costs in The Callisto Protocol

As mentioned earlier, you can head to any Reforge machine to upgrade your weapons. In total, seven weapons can be obtained through different means in the Callisto Protocol as of now. While you get some weapons from your allies as you progress, you get the rest as the Schematics. Once you have collected the schematics, you can buy them from Reforge. There are different branching tiers of upgrades to these weapons. And you unlock these tiers as you buy the branching weapon upgrade.

So, here’s the list of all the Reforge weapon upgrades in the Callisto Protocol with their costs:

Stun Baton

Tier 1

  • Riot Control Swing – 300 Callisto Credits
  • Blocking Counter Attack – 300 Callisto Credits
  • Increased Velocity Allow Sheath – 300 Callisto Credits

callisto protocol reforge upgrades costs

Tier 2

  • Damage Upgrade Level One – 900 Callisto Credits
  • Blocking Protection – 900 Callisto Credits
  • Block Break – 900 Callisto Credits

Tier 3

  • Damage Upgrade Level Two – 2,700 Callisto Credits
  • Blocking Feedback Damage – 2,700 Callisto Credits
  • Targeting Module Upgrade – 2,700 Callisto Credits

B1-55 Handcannon

Tier 1

  • Stability Upgrade – 200 Callisto Credits
  • High Capacity Magazine Upgrade – 200 Callisto Credits

Tier 2

  • Magnum Rounds Damage Upgrade – 600 Callisto Credits

Tier 3

  • TK23 “Boom Bullets” – 1,800 Callisto Credits

GRP Glove

Tier 1

  • GRP Recharge Speed Upgrade (Small) – 300 Callisto Credits
  • Energy Upgrade (Small) – 300 Callisto Credits
  • GRP Velocity Upgrade (Small) – 300 Callisto Credits

Tier 2

  • GRP Recharge Speed Upgrade (Medium) – 900 Callisto Credits
  • Energy Upgrade (Medium) – 900 Callisto Credits
  • GRP Velocity Upgrade (Medium) – 900 Callisto Credits

callisto protocol reforge upgrades costs

Tier 3

  • GRP Recharge Speed Upgrade (Max) – 2,700 Callisto Credits
  • Energy Upgrade (Max) – 2,700 Callisto Credits
  • GRP Velocity Upgrade (Max) – 2,700 Callisto Credits

TK4 Riot Shotgun

Tier 1

  • Magnum Rounds Damage – 300 Callisto Credits
  • Stability Upgrade – 300 Callisto Credits

Tier 2

  • High Capacity Magazine – 900 Callisto Credits

Tier 3

  • Explosive Rounds Upgrade – 2,700 Callisto Credits

Skunkworks Shotgun

Tier 1

  • Magnum Rounds Damage – 300 Callisto Credits

Tier 2

  • Stability Upgrade – 1,200 Callisto Credits
  • Magnum Rounds Damage Upgrade – 1,200 Callisto Credits

Tier 3

  • Swarming Rounds – 2,700 Callisto Credits

Tactical Pistol (UJC Special OPS)

Tier 1

  • Magnum Rounds Damage Upgrade – 300 Callisto Credits

Tier 2

  • High Capacity Magazine Upgrade – 900 Callisto Credits
  • Stability Upgrade – 900 Callisto Credits

Tier 3

  • TK33 “Burst Mode” – 3,600 Callisto Credits

Assualt Rifle (UJC Special OPS)

Tier 1

  • High Capacity Magazine Upgrade – 900 Callisto Credits

Tier 2

  • Magnum Rounds Damage Upgrade – 1500 Callisto Credits

Tier 3

  • Stability Upgrade – 4,500 Callisto Credits
  • TK63 “Homing Rounds” – 4,500 Callisto Credits

In addition to the above-mentioned weapon upgrades, you can also purchase weapon ammo and Health Syringes at any Reforge.

How to Upgrade Weapons in The Callisto Protocol

callisto protocol reforge upgrades costs

As mentioned earlier, you can upgrade your weapons at any of the Reforge Machines. Upon heading to the Reforge, select the weapon and the upgrade you want to make. Once you have selected the weapon upgrade, hit the prompted keybind to buy that upgrade. If you have insufficient Callisto Credits, you can also sell junk items at Reforge. These include Printers, Energy Converters, Decoders, consumables, and other resources. So, make sure to dispose of any unwanted items to manage your inventory space.

That’s everything covered about all the Reforge weapon upgrades and costs in The Callisto Protocol. If you liked this guide, check out our guides on the hardest enemies and how to defeat them, how to perform quick kill, how to block and dodge perfectly, and more Callisto Protocol Guides on our dedicated section right here on Gamer Tweak.

  • Warden Codes (August 2026)

    Warden Codes (August 2026)

    Published Date :

    Warden takes you on a fantasy PvE adventure where you’ll play as powerful creatures, solve puzzles, complete objectives, and uncover the mystery behind a spreading corruption. While you’re at it, you can redeem the latest Warden codes to unlock Shooms, the in-game currency. Before any further ado, here’s the latest list of active rewards. Last… Read More

  • Stay Hard Run Codes (August 2026)

    Stay Hard Run Codes (August 2026)

    Published Date :

    Inspired by David Goggins’ famous “Stay Hard” mindset, Stay Hard Run challenges you to push through demanding obstacle courses without giving up. Every successful run earns you more progress, helping you unlock upgrades and if you’re looking for an extra boost along the way, redeeming the latest Stay Hard Run codes is something you should… Read More

  • PartyBox Codes (August 2026)

    PartyBox Codes (August 2026)

    Published Date :

    Answering trivia questions or sketching hilarious drawings is super fun with a group of friends in PartyBox. Since you’ll be competing across a variety of game modes, any free rewards you can claim are always worth picking up, and luckily, the devs release goodies that reward Confetti and more, perfect for your next game night.… Read More

  • Roblox Lowball Codes (August 2026)

    Roblox Lowball Codes (August 2026)

    Published Date :

    Buying items below their market value and flipping them for a profit is the fastest way to get rich in Lowball. Every successful negotiation grows your cash, letting you take on bigger trades and expand your inventory even further. If you want an extra boost without waiting for your next big deal, redeeming the latest… Read More