
About this Mod
HollowCore is a minecraft modding library by HollowHorizon. It is an easy to use and powerful library for easier creation of minecraft mods for Fabric, Forge and NeoForge.
Features
Multi versional
HollowCore is now running on 1.21, 1.20.1 and 1.19.2 (WIP) by the Forge, Fabric and NeoForge loaders.
Integration with ModLoaders
- Universal Registration system to register blocks, items, block entities, etc. using kotlin delegates.
- Universal Packet system with automatic serialization and registration using annotations.
- Universal Capabilities system to storing nbt in entities, block entities and worlds.
- Universal EventBus system for all modloaders and basic events.
Easier development
- Automatic models generation for blocks and items using embed resourcepack.
- NBT serialization and deserialization of any objects using Kotlinx.Serialization.
- Toml Config system based on KotlinX Serialization.
- Automatic sounds.json generation.
Graphics
- ImGui based framework: basic elements, items, entities, containers, slots, etc.
- Async GLTF model loader with skeletal animations, skinning, morph targets, PBR materials with Iris/Oculus support.
- Effekseer particles support.
- Gif textures.
- MP3, OGG, WAV Sound formats support.
Available Versions
How to Install Hollow Core on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set forge Loader
In the panel under "Egg", select the forge loader and matching Minecraft version (1.19.2).
Install Mod
Open the mod browser in the dashboard and search for "Hollow Core". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.19.2, 1.19.1, 1.19 (+1 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Hollow Core server crashes on startup – what to do?
Most common cause: wrong forge 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 (1.19.2). You can switch loaders with one click in the panel.
Is Hollow Core compatible with forge?
Hollow Core officially supports forge for Minecraft 1.19.2, 1.19.1, 1.19. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Hollow Core – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Hollow Core 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 Hollow Core with just one click on your server.