Satisfactory Mercer Sphere Locations: 298 Alien Spheres & Dimensional Depot Guide
Find every alien sphere with our interactive Satisfactory Mercer Sphere map. Learn what to do with Mercer Spheres in Satisfactory, master the Satisfactory Dimensional Depot cloud inventory, and scale your upload speeds up to 240 items/min.
298 Satisfactory Mercer Sphere Locations Map
Use this interactive Satisfactory Mercer Sphere map to track down all 298 spheres across the world. Filter by elevation to find underground caves, clifftop perches, or surface pickups.
The Satisfactory Dimensional Depot: Build From Anywhere
Connect a Satisfactory Dimensional Depot Uploader straight to your factory conveyor belts. When building with the Build Gun, components are pulled directly from global cloud storage without touching your personal inventory.
MAM Upload Bandwidth & Capacity Scaling
The Dimensional Depot starts at 15 items/min upload speed and 1 stack capacity. Researching Alien Technology in the MAM unlocks 4 speed tiers and 4 stack upgrades.
| Research Tier | Upload Speed | Stack Storage | Spheres |
|---|---|---|---|
| Baseline Unlock | 15 items/min | 1 Stack | 1 Sphere |
| Speed Upgrade 1 | 30 items/min | 2 Stacks | 3 Spheres |
| Speed Upgrade 2 | 60 items/min | 3 Stacks | 5 Spheres |
| Speed Upgrade 3 | 120 items/min | 4 Stacks | 11 Spheres |
| Speed Upgrade 4 (Max) | 240 items/min | 5 Stacks (Max) | 21 Spheres |
Interactive Depot Throughput Calculator
Select an essential factory building component below to see upload throughput, buffer replenishment time, and total cloud stack storage.
Top Priorities: First Items to Feed into Depot
Concrete is consumed by every foundation and building snap point. Uploading Concrete first allows you to construct massive skyways, bridges, and factory platforms thousands of meters from your main base.
Required for Conveyor Belts Mk.1 through Mk.4, stackable conveyor poles, and wall brackets. Eliminates the need to ever walk back to base for belt materials.
Essential for laying miles of electrical power poles, zipline highways, and power switches during exploratory expeditions across uncharted biomes.
Enables dropping Manufacturers, Refineries, Blenders, and Train Stations instantly on site without dedicating half your personal inventory slots to heavy parts.
Depot Traps: Items to Avoid Uploading
Raw ores cannot be used by the Build Gun for placing factory buildings or infrastructure. Uploading raw unsmelted ores wastes valuable upload bandwidth with zero player utility.
Packaged Water, Packaged Heavy Oil Residue, and Packaged Nitric Acid are process intermediaries. Only upload Packaged Fuel if you actively use it for Jetpack flight.
Thermal Propulsion Rockets, Nuclear Pasta, and Ballistic Warp Drives cannot be built with the Build Gun. Connect them directly to the Space Elevator via conveyor belts.
Basic smelted ingots and rods are crafting components, not building materials. Save upload slots for finished plates, beams, and concrete that the Build Gun actively places.
MAM Alien Tech: Satisfactory Dimensional Depot Upgrades
Wondering in Satisfactory what to do with Mercer Sphere artifacts? Here is the complete breakdown of the 97 spheres needed to unlock all Satisfactory Dimensional Depot upgrades in the MAM, plus how to spend the 201 surplus spheres.
Dimensional Depot Research Tree Specifications
MAM Alien Technology Progression & Uploader Network Scaling
Full MAM Upgrade Cost
Unlocks the baseline Dimensional Depot, increases upload speed from 15/min up to 240 items/min, and expands cloud buffer from 1 stack to 5 full stacks.
Surplus Depot Uploaders
Because each Dimensional Depot Uploader costs exactly 1 Mercer Sphere to construct, players can build up to 201 individual uploaders across their factory network.
Zero Operating Cost
Uploaders require zero electrical connection and operate passively 24/7. Simply place the uploader on an output conveyor belt or storage container.
Satisfactory 1.0 Global Mercer Sphere Balance
The total 298 Mercer Spheres placed across MASSAGE-2(A-B) are allocated as follows:
Pioneer Mercer Sphere FAQs
Quick, factual answers regarding Mercer Sphere distribution, cave locations, upload speeds, and cloud storage mechanics.