ARC Raiders Guide | How to Get Jupiter Railgun Blueprint

Here is a guide on How to Get Jupiter Railgun Blueprint in ARC Raiders.

Game Guide by Mash Rahman on Aug 03, 2026

The Jupiter Railgun is a very powerful, long-range anti-ARC energy weapon. To unlock this legendary Blueprint in ARC Raiders, players must solve world event puzzles or beat elite boss fights in surface combat zones.

Get your heavy weapons ready and learn about the event puzzle mechanics, and you are guaranteed this top-tier weapon recipe for your Speranza workshop.

Jupiter Railgun in ARC Raiders

Harvester Event Core Puzzle Answer

The Jupiter Railgun Blueprint in ARC Raiders is exclusive to the Harvester Event, which you can only participate in when it appears on the map. To move around in the central structure, insert three power cells into the main column and destroy twelve lit wall switches.

Successfully completing this sequence will open three central reward chests which have a high chance of dropping legendary weapon blueprints.

Loot From Defeated Queen Bosses

The Jupiter Railgun Blueprint gives you a second chance to fight the Queen boss that protects the Harvester. Her leg armor plates are her weak spots. High penetration firearms can break her defenses and make her drop looted mechanical cores.

By shattering these fallen Queen Cores, you will be rewarded with valuable crafting materials and a chance to get the coveted energy weapon blueprint.

Secure storage & crafting prerequisites

Good ways to lock down these rare schematics for the railgun ensure your effort will be rewarded with permanent crafting upgrades. If hostile raiders attack near extraction points, shift the schematic to the Safe Pocket in your inventory immediately to ensure it is secure.

Get to the safety of your hideout, eat the recipe and gather 3 Magnetic Accelerators and 3 Complex Gun Parts to make it.