Originfall Cataclysm

**Mod Overview**

A source-stone infection mod designed based on the definitions of Originium and the Originium Plan in *Arknights*.

**Learning System**

Calamity creatures will learn the activity logic of vanilla creatures they kill to strengthen themselves. Different creatures can learn different amounts of activity logic.

**Calamity Mode**

Saved per dimension: each dimension's calamity state is recorded independently;

Meteor strikes: in Calamity Mode, meteors will continuously spawn near players and calamity creatures;

Hardcore Mode automatically enables Calamity Mode and removes the "Source of Destruction" item.

**Civilization Continuation Mode**

Each dimension's calamity state is recorded independently. Calamity Mode is automatically enabled, and the player will oppose the Originium faction.

**Faction Settings**

This mod divides creatures into the Originium faction and the Civilization Continuation faction. The two factions are hostile to each other, and players will join different factions depending on the mode.

**Meteor Strike Introduction**

After Calamity Mode is enabled, meteors will be summoned periodically. Meteors have mechanics such as explosion, creature conversion, chance to spawn derived meteors, and chance to contaminate terrain. Falling meteors will have varying explosion ranges, explosion damage, and different targeting mechanisms.

**Calamity Creature Introduction**

Young Demon King: tamable, summons meteors and Originium puppets;

Calamity Princess: a powerful summoned creature, follows across dimensions, can strengthen the Young Demon King;

End Walker / Calamity Messenger: transformed from ordinary infected creatures, retains original attributes, resurrects after death. Calamity Messengers can fly and use ranged attacks;

Originium Maodie / Hachi Sage: based on the Iron Golem, attacks carry infection effects.

**Featured Items**

Civilization's Continuance: enables Civilization Continuation Mode, deletes Source of Destruction;

Source of Destruction: enables/disables Calamity Mode, the holder is immune to infection and withering;

Destruction and Redemption: permanently disables the current dimension's Calamity Mode / Civilization Continuation Mode (one-time use);

Babel Oath: switches the dimension's calamity state (one-time use);

Child of Destiny Xiuer: summons a meteor that locks onto the creature with the highest max health within range;

Meteor Staff: summons 3–5 random meteors;

Originium Beautification Pack: forcibly converts creatures into Originium faction units, ignoring protection.

**Creature Summoning Mechanism**

Use the vanilla Iron Golem structure with Black Crystal or Pure Originium as materials to summon Originium Maodie or Hachi Sage respectively (Originium faction).

Use the vanilla Iron Golem structure with Zhangshi Block as the material to summon Theresa (Civilization Continuation faction).

**Rule Control**

This mod adds a rule control module, which can be controlled in the vanilla game rules menu.

Conversion Creature Density: range 1–100, must be an integer. Defined as the maximum number that can exist simultaneously within a 3×3 chunk area (default 15). After reaching this density, creatures will no longer be converted by conversion creature kills or Originium infection kills.

Babel Action Mode (default off): when enabled, the Originium faction will attack all non-Originium faction creatures.

All-Ship Defense System (default on): when enabled, Theresa will naturally spawn with a 1% chance based on the Young Demon King's spawning mechanism.

"This Land"'s Legacy (default on): when enabled, creatures holding this mod's weapons will definitely drop them (excluding players).

**Version Update Contents**

**1.3.2 Update Contents**

Fixed Theresa's movement speed being too fast.

Modified the resurrection conditions of Shadow Firmament Final Path.

Added control options to the rules.

Limited conversion creature density option (Originium-converted creature spawning and conversion density).

Babel Action (whether the Originium faction attacks friendly creatures).

All-Ship Defense System (whether Theresa spawns automatically).

"This Land"'s Legacy (whether mod weapons drop).

**2.0.1 Update Contents**

Added a mod manual, distributed at the start.

Resolved several known issues.

Preliminary compatibility with Epic Fight.

Known compatibility issue: using Epic Fight causes Endermen not to spawn in the End.

Updated dual-faction boss units.

1. "Priestess" Priestess

Faction: Originium faction

Drops:

Originium Beautification Pack

Destruction and Redemption

Abilities:

Artifact • Heavenly Fulcrum:

Void Exile

Execution damage based on max health

Execute max health

Heals when creatures within range die

Invincible when near death

No Lower Limit • Internalized Universe Expansion

"Priestess" Priestess:

Domain expansion, damage transfer within the domain

Domain duration bonus

Creatures within range dying grants her a large attribute bonus

After a certain time, summons Originium faction creatures based on her own attributes

Spawn method:

Spawns after defeating the Ender Dragon.

2. "Prophet" Doctor

Faction: Civilization Continuation faction

Abilities:

Artifact • As I See It:

Splash damage

Max health burning

Spatial lockdown

Heals when creatures within range are injured

Near death, burns max health to heal

No Lower Limit • Internalized Universe Expansion

"Prophet" Doctor:

Domain expansion, all creatures and entities within the domain are slowed by 100 times (approximately time stop)

Domain detection range bonus

Creatures within range being injured grants him a small attribute bonus

After a certain time, summons Theresa based on his own attributes

Spawn method:

Use Zhangshi Blocks to form a 2×2 water pool and throw in a Copper Block, Iron Block, Diamond Block, Gold Block, Ancient Debris, Black Crystal, Pure Originium, and Zhangshi Block to obtain "Between the Surface and the Interior." Use the item to summon.

**2.1.2 Update Contents**

This version is now fully compatible with the Epic Fight mod.

Resolved the music playback issue from the previous version.

**Applicable Versions**

Minecraft 1.20.1;

Forge 47.4.10.

**Current Status**

Some versions have known stability issues. It is recommended to use stable versions and regularly back up saves. If you find bugs, please communicate with the author in a timely manner.

**Author Thanks**

Thanks to Bilibili teacher Gou Si Bai for providing creature textures;

Thanks to Bilibili Jiufen Combat Record teacher Haji Jiu for clarification and support.