Deltapack
A deltarune datapack adding content from dark fountains and dark worlds to the roaring knight. As well as items and spells like snowgrave and the shadow mantle.
Screenshots
About this Mod
Deltapack is THE deltarune datapack that you have been searching for!
Whilst currently small it features a decent amount of content to kickstart your deltarune journey.
The Knife: Craft a knife then stab the ground to open a dark fountain, will convert nearby items into a darkner.
Snowgrave: Well that took a weird route, craft snowgrave and use the spell to freeze all nearby entities to death....
The Roaring Knight: The first (and currently only) boss! A difficult bullet hell styled fight where they attack first, then you get a chance to attack, mimicing the turn based combat of the original game.
The Shadow Mantle: Greatly reduces damage from firework and magic attacks, which happen to be the exact kind of attacks The Knight uses.
The Shadow Crystal: Drops from the Roaring Knight, consume it to gain their abilities!
deltarune by toby fox
this is not afilliated with toby fox or deltarune, it is simply a fan creation
(ive never played deltarune so mb if its inaccurate i make this stuff for fun)
Available Versions
How to Install Deltapack on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set datapack Loader
In the panel under "Egg", select the datapack loader and matching Minecraft version (1.21.11).
Install Mod
Open the mod browser in the dashboard and search for "Deltapack". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11, 25w43a, 25w42a (+3 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Deltapack server crashes on startup – what to do?
Most common cause: wrong datapack 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 (1.21.11). You can switch loaders with one click in the panel.
Is Deltapack compatible with datapack and fabric and forge and neoforge and quilt?
Deltapack officially supports datapack, fabric, forge, neoforge, quilt for Minecraft 1.21.11, 25w43a, 25w42a. 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 Deltapack – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Deltapack 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 Deltapack with just one click on your server.