Quick route
Section titled “Quick route”The Makeshift Projectile is in the Mammon region. The intended sequence is:
- Pick up the projectile south of the Outskirts of Mammon Beacon.
- Take it to the catapult southwest of that Beacon, beside Ruk’s Map of Mammon statue.
- Choose Yes at the Place Ammo? prompt.
- Follow the impact site west of Castigator’s Keep into the Alchemist’s Workshop.

Where to find the Makeshift Projectile
Section titled “Where to find the Makeshift Projectile”Start at the Outskirts of Mammon Beacon and head toward the large stone bridge. You can either drop to the lowland on the right side of the bridge or use the southeast rope bridges and pass the NPC Vlas.
Continue south to the cliff edge below the far end of the bridge. The projectile is there with a note nearby, and current coverage reports that Grisha Hunters may guard the pickup.
Do not keep searching around the catapult for the item. The ammunition and the siege weapon are separated by the Mammon route.
How to fire the catapult
Section titled “How to fire the catapult”- Return to the grassy area southwest of the Outskirts of Mammon Beacon.
- Find the catapult beside the statue where Ruk gives the Map of Mammon fragment.
- Approach the loading basket with the Makeshift Projectile in your inventory.
- Interact with it and confirm Yes when the prompt shows “Makeshift Projectile: 1”.
The glowing red projectile drops into the basket and the catapult fires. That confirms the ammunition has been used and the route has opened.
Where the projectile lands
Section titled “Where the projectile lands”The shot lands on the island chain west of Castigator’s Keep and east of the Gate of Mammon Beacon. Look for a construction site with Miner enemies and a crater in the mountainside.
From the Outskirts of Mammon, travel toward Castigator’s Keep, then follow the cliffside path west to the rocky construction area. The destroyed wall is the entrance to the Alchemist’s Workshop. If the wall is still intact, the shot has not opened the route yet.
Alchemist’s Workshop rewards
Section titled “Alchemist’s Workshop rewards”The current route reports these useful finds inside the dungeon:
- Desk near the entrance: an alchemical brew that tilts the camera. Interact with the desk prompt again to remove the effect.
- Inner chamber dais: a Synaptic Vessel and five Glimpse materials.
- Bottom of the elevator shaft: a Clockwork Shardstone Tarstone guarded by a Shell Snatcher.
The healing upgrades guide explains why the Synaptic Vessel matters, while the Tarstones guide covers the broader upgrade system.
Common mistakes
Section titled “Common mistakes”- Looking for the projectile beside the catapult instead of below the stone bridge.
- Going to the construction site before firing and assuming the intact wall is the wrong location.
- Searching for a standard chest instead of the item and note at the southern cliff edge.
- Confusing the Alchemist’s Workshop impact site with another Mammon construction area.
- Treating exact attack percentages for the Clockwork Shardstone as universal; current source details may be patch-sensitive.
What happens next
Section titled “What happens next”After collecting the dungeon rewards, return to your Mammon route. The nearby Map Fragments guide can help with Ruk’s map landmarks, and Tarforge explains the upgrade system related to the Foundry Stone reported near the route.
Sources
Section titled “Sources”- GameSpot — How To Get And Use The Makeshift Projectile — item location, Mammon landmarks, catapult, and workshop contents, 2026-08-17.
- AllThingsHow — How to Get and Use the Makeshift Projectile — route cross-check, prompt wording, impact site, rewards, and image source, updated 2026-08-20.