
EMIDiscovery
Prevents EMI from giving away all the secrets in your modpack by hiding items until the player has held one in their inventory.
Screenshots

About this Mod
Prevents EMI from giving away all the secrets in your modpack by hiding items until the player has held one in their inventory.
How it works
- Only items that the player has held appear in the index.
- The craftable/recipe view only shows recipes that can be made entirely from known items.
- Craftable recipes show their output item, but you can't do use or recipe lookups on them until they've been crafted.
- Tag and list ingredients are filtered to hide unknown items in the set.
- Known items can be prepopulated from a JSON file.
- Known items are stored client side, separately for each player and world.
- Works with EMI++ Backport item groups.
Configuration
Currently the only configuration is the prepopulated items file, config/emi_discovery_pre_discovered.json. The
format is a JSON array of strings specifying items by registry ID. Example:
[
"minecraft:stone",
"minecraft:iron_ingot"
]
The contents are copied to the the known items list of any player who doesn't already have one at login.
Acknowledgements
- Inspired by, based on, and reuses code from Discovered Enough Items
- Icon uses Archaeologist by Jevgenijs Kudinovs from The
Noun Project
Available Versions
How to Install EMIDiscovery on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.20.1).
Install Mod
Open the mod browser in the dashboard and search for "EMIDiscovery". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
EMIDiscovery server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.20.1). You can switch loaders with one click in the panel.
Is EMIDiscovery compatible with fabric and forge?
EMIDiscovery officially supports fabric, forge for Minecraft 1.20.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with EMIDiscovery – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if EMIDiscovery consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install EMIDiscovery with just one click on your server.