Lost Soul
A horror mod based on the setting of the game Undertale. Have fun playing, partner =)
Screenshots
About this Mod
You have wielded the blade countless times, slaying every monster in the underground world.
300 times, 500 times, the numbers have long become blurred. In pursuit of the so-called "perfection", you even tampered with the game's core files.
However, this time, the game refuses to be dominated by you anymore.
The data began to become chaotic, the screen flickering and distorted, and the monsters that should have disappeared returned in an even more terrifying form.
Chara's mockery, misplaced texts, and the constantly recurring memories of massacres - they are no longer mere codes, but real nightmares.
In this out-of-control archive, you must confront the monsters you have created with your own hands, and search for the only and true "Save" amidst the endless bizarre events.
What else can you save?
Or are you the one who needs to be saved?
Available Versions
How to Install Lost Soul 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 (1.20.5).
Install Mod
Open the mod browser in the dashboard and search for "Lost Soul". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.5, 1.20.4, 1.20.3 (+2 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Lost Soul 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 (1.20.5). You can switch loaders with one click in the panel.
Is Lost Soul compatible with forge?
Lost Soul officially supports forge for Minecraft 1.20.5, 1.20.4, 1.20.3. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Lost Soul – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Lost Soul 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 Lost Soul with just one click on your server.