
Origins: Fellmouth Demon
Java data pack listed for Minecraft 1.20. Downloads from the MC Java Mods app on Android.
⬇ Download on Modrinth😈 Fellmouth Demon
[ Impact 2 ]
A wanderer from a distant kingdom, this demon seeks to witness all that the world has to offer.
An origin created for an OC of mine! This is filled with advancements, with more to come and has some nice VFX and combat!
Powerlist
SteamheartA little resource above the hunger that fills up on its own over time.
When sneaking, this fills up faster, and it can't fill up when you're in water or gliding. This resource naturally depletes while you are submerged in water, unless you are wearing a full set of Water Protection.
Fellmouth's DanceUnleash pressurized steam to dash or climb surfaces.
- You can also walljump.
A dash that cuts through your opponent, igniting them with Fellfire upon contact.
- Dashing grants you Invincibility for 0.5s.
- Affected entities emit a constant glow and trail of smoke, suffer a 50% reduction in armor, and move 20% slower.
Your attacks deal fire damage, but it doesn’t linger. While you’re on fire, your next attack is empowered, extinguishing the flames afterward.
- Right-click with a flint and steel to ignite yourself. Works whether held in your main or off hand.
Awakened by a sudden shift in temperature, you realize you are no longer in your kingdom. Memories of your mission return. Your adventure beginning in the Crimson Forest.
At What Cost?You are unaffected by the slowing effects of soul sand. When equipped with Soul Speed, your pace increases dramatically, letting you sprint across with ease.
However, traversing soul sand or soul soil gradually drains your steam reserves.
BlameworthyBecause Fellmouth has long harvested the Nether’s inhabitants for resources, its name is cursed throughout the realm. As a result, nearly every native creature regards you as an enemy, regardless of any gold you wear.
Even overworld villagers recoil at your presence, refusing all trade. Iron golems will attack on sight, driven by instinctive fury.
InstabilityBecause of your intense heat, ice and snow dampen your steam. You take increased damage from freezing.
Snowballs inflict bonus damage and reduce your steam when they hit.
- -20 Steam per hit.
Constantly dodging attacks and relying on your Fellfire Guard has weakened your defense. When below half health, you take increased damage.
- Dropping below 50% Health increases damage taken by 50%
Your demonic nature makes you more vulnerable to Smite, and you tire quicker than that of mortals.
- Exhaustion increased by 87.5%
Dependencies
This datapack does require the Origins Mod.
Additional
Theres more to this origin! Not all tooltips were written down ;)
If you encounter any bugs or want to suggest something, dm me on discord!
@cassettecat
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.20, 1.20.1, 1.20.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
- Downloads as Fellmouth-Demon.zip
- Download size: 27 KB
- Download link checked 1 Oct 2026 — working
These come from our own check of the pack file, not from the source page.