FxUndertale
A restoration mod aiming to integrate elements from Undertale into Minecraft. 还原向模组，旨在将Undertale中的内容融合进Minecraft中。
Screenshots
About this Mod
FxUndertale
FxUndertale is a NeoForge mod for Minecraft 1.21.1, aiming to integrate characters from Undertale into the Minecraft world.
Currently only includes the Sans boss fight. You can find the Golden Corridor structure in savanna biomes to challenge Sans. Upon defeat, he will drop the Gaster Blaster item.
Required Dependencies (must be installed)
- FxLib 1.21.1 latest version
- GeckoLib 1.21.1 (4.8.4)
- Player Animation Library 1.4.1 + mc1.21.1
Planned Content
More boss characters and richer items
License
This project is licensed under the MIT License.
This mod is a fan project inspired by UNDERTALE, created by Toby Fox.
FxUndertale 是一个 NeoForge 模组（Minecraft 1.21.1），旨在将Undertale中的角色融合到Minecraft世界中。
目前只包含Sans BOSS战，可在热带草原群系找到金色长廊结构，进行挑战，击败后会掉落GasterBlaster物品。
【前置模组（必须安装）】
- FxLib 最新版本
- GeckoLib 1.21.1 4.8.4
- Player Animation Library 1.4.1 + mc1.21.1
【计划中的内容】
- 更多 Boss 角色 与 更丰富的道具物品
【许可】
本项目使用 MIT 许可证。
本模组为《传说之下》的粉丝向作品，原作由 Toby Fox 创作。
Available Versions
How to Install FxUndertale on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set neoforge Loader
In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "FxUndertale". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
FxUndertale server crashes on startup – what to do?
Most common cause: wrong neoforge 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 (1.21.1). You can switch loaders with one click in the panel.
Is FxUndertale compatible with neoforge?
FxUndertale officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with FxUndertale – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if FxUndertale 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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