About Configurable Core Miner Returns
From Factorio Mod PortalConfigure diminishing returns for Space Exploration core miners in Factorio 2.1.22+. Adjust the efficiency penalty per additional miner from 0-100% via map settings.
Configurable Core Miner Returns
A Factorio mod that allows you to configure the diminishing returns rate for Space Exploration core miners. Versions 2.1.x support Factorio 2.1.22+ and Space Exploration 0.7.63+.
Features
- Adjustable diminishing returns rate (0-100%)
- Default 10% diminishing returns per additional miner
How It Works
Each core miner after the first contributes slightly less than the previous one, based on the configured rate.
With the default 10% setting:
| Miners | Marginal Efficiency | Average Efficiency | |--------|--------------------|--------------------| | 1 | 100% | 100% | | 2 | 90% | 95% | | 3 | 81% | 90.3% | | 4 | 72.9% | 86.0% | | 5 | 65.6% | 81.9% | | 10 | 38.7% | 65.1% | | 20 | 13.5% | 43.9% |
- Marginal Efficiency: The efficiency of the last miner placed
- Average Efficiency: The displayed per-miner yield (total output ÷ miner count)
The configured rate replaces Space Exploration's default diminishing returns while preserving its planet-size yield multiplier.
Settings
| Setting | Type | Default | Range | |---------|------|---------|-------| | Diminishing rate per miner | Map | 10% | 0-100% |
Set to 0% for no diminishing returns (all miners at full efficiency).
Configurable at any time via Map Settings - no restart required.
Localization
English, Spanish, French, German, Italian, Russian, Simplified Chinese, Traditional Chinese
Requirements
- Factorio 2.1.22+
- Space Exploration 0.7.63+
Uses Space Exploration's built-in core-miner event; no additional helper mods are required.
Highlights
From source dataFootprint
Rated a light load on a server.
License
Published under MIT.
Last update
Its author last shipped an update 8d ago.
Configurable Core Miner Returns on Nxeon
From our catalogue- One-click install
- Supported on Nxeon Factorio servers. We download it from Factorio Mod Portal, place it, and restart the server.
- Server side
- Required on the server
- Server load
- light
- Smallest plan we suggest
- Factorio — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
- Latest build
- 2.1.1, released 2026-10-26
Recent builds
| Build | Released | Game versions | Loaders |
|---|---|---|---|
| 2.1.1 | 2026-10-26 | 2.1 | n/a |
| 2.1.0 | 2026-10-26 | 2.1 | n/a |
| 1.0.0 | 2025-12-31 | 2.0 | n/a |
Dependencies
- Required: Space Exploration
Declared by the newest build that lists any. Required ones are installed with it on one-click installs.
Run Configurable Core Miner Returns on a Factorio server
Pick a server or deploy a new one above; it is installed in one click.
What kind of mod it is
From the catalogMaps & scenarios
Custom maps, arenas and scenarios to play on.
Runs on your server
From source side supportFactorio Mod Portal lists Configurable Core Miner Returns as required on the server. Check its Factorio Mod Portal page to see whether players need it too.
Compatibility
- Game
- Factorio
- Runs on
- Serverrequired on the server
Verified at the source
- ✓Factorio Mod PortalOfficial listing, checked 2026-10-27Open ↗
- ✓Authorpsyanara, as published on Factorio Mod Portal
- ✓LicenseMITFree
