This is a deprecated item that will be removed in a future update.
Weight0 gMax stack100
Notes
A Modern Upgrade 4 is a high-tier module that provides a large increase in work efficiency when installed in a compatible crafting station, significantly reducing both resource consumption and craft time. It belongs to the broad Efficiency Modules category and is required as an ingredient to create some of the most advanced specialized upgrades, such as the Composites Upgrade or the Oil Drilling Upgrade. Because these modules are gated by room tier and provide diminishing returns if stacked past a server-configured cap, players should prioritize installing them in stations used for the most resource-intensive production chains.
Notes are AI-generated and may be imprecise.
As an upgrade module
no slot — can't be installed (deprecated)Room tier+1deprecated
The descriptive prose on this wiki is written by a large language model — but it runs entirely on local, self-hosted hardware: a Gemma 4 E4B model on a single NVIDIA RTX 4070 in a home Unraid server.
Nothing you read here was generated by a commercial cloud API. The game data itself is pulled live from the Eco server; the AI only fills in flavor and gap text. Like any web server, this one keeps its own request log — including visitors' IP addresses — purely to run and improve the site; it is never sold or handed to a third party.
This wiki is one face of a larger Eco mod: Solomon, an in-world AI steward that runs the server's economy, posts help contracts, keeps a store, and answers players. The wiki reads the same live game registries and tools Solomon does — so the numbers stay true to the running world. Read more about the project →
✨ Ask Solomon
Ask me anything about the Eco game — recipes, skills, animals, biomes. I read this wiki to answer, and you'll watch me look things up.