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Sundered Realms

AI-built 1.20.1 pack. 921 quests, 86 bosses, 27 dimensions. Mobs tunnel through your walls and Blood Moons bring hordes. Quests, economy and balance generated by Claude AI - the mods are their authors' work. Work in progress. 14 mods need manual install.
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Sundered Realms PUBLISHED VERSION.zip

File nameSundered Realms PUBLISHED VERSION.zip
Uploader
ItsJay1292ItsJay1292
Uploaded
Aug 24, 2026
Downloads
13
Size
4.9 MB
Mod Loaders
Forge
File ID
8727361
Type
B
Beta
Supported game versions
  • 1.20.1

What's new

SUNDERED REALMS — CHANGELOG

v0.1.0 — Initial Release

332 mods · 892 quests · Minecraft 1.20.1 · Forge 47.4.10


💥 CRASHES FIXED — 6

Every one diagnosed from bytecode, logs or file inspection rather than guesswork.

1. Traveloptics — NoClassDefFoundError: DungeonEyeItem

Cataclysm 3.31 flattened items/Dungeon_Eye/DungeonEyeItem to items/DungeonEyeItem. Traveloptics 6.3.0 still referenced the old path. Its declared range [2.57.,) is open-ended, so Forge loaded the incompatible version silently. Fix: Cataclysm 3.31 → 3.16. Verified all 8 Cataclysm dependents resolve against 3.16 with zero missing class references.

2. Cataclysm items — AbstractMethodError: BasicEntityModel.root()

LionfishAPI 3.0 made root() abstract; Cataclysm 3.16's item models don't implement it. Any render of a Cataclysm custom-model item crashed the client — it surfaced through the quest book but would equally have crashed from JEI or the inventory. Fix: LionfishAPI 3.0 → 2.7. All 24 referenced classes verified present.

3. Hexerei — InvalidMixinException: cannot reduce visibility

Sinytra Connector's patch_data.json widened HumanoidArmorLayer.getArmorModelHook to public; Hexerei's mixin declares it protected. Found by searching every file in all 348 jars for the method name — an access-transformer grep alone missed it. Fix: Connector removed. Nothing in the pack needed it — zero mods declared connectormod, zero Fabric-only jars.

4. Mod loading — connectorextras_architectury_bridge requires connectormod

ConnectorExtras bundles architectury-bridge in JarJar, which hard-requires Connector. Fix: ConnectorExtras removed. (Also exposed a gap in the validator — see below.)

5. Duplicate mod id origins

Two loose jars both declaring origins: the multiloader build (requires Connector) and the native Forge build. Fix: kept origins-forge, disabled the Connector-based build.

6. Traveloptics — NoClassDefFoundError: DeadKingAnimatedWarlockAttackGoal

Traveloptics 6.3.0 was built against Iron's Spellbooks 3.15.x; 3.16.3 removed that class. Improved Mobs exposed it by instantiating every registered entity on world load. Fix: Iron's Spellbooks 3.16.3 → 3.15.6, which cascaded into irons_lib 2.1.0 → 1.0.2 (3.15.6 requires the upper-bounded range [1.20.1-1,1.20.1-2)). Cost: Dark Doppelganger and Twilight Spellbooks, which hard-require 3.16.2+.


🗑️ MODS REMOVED OR SWAPPED

Version swaps (fix, don't remove — content preserved)

  • Cataclysm 3.31 → 3.16
  • LionfishAPI 3.0 → 2.7
  • Iron's Spellbooks 3.16.3 → 3.15.6
  • irons_lib 2.1.0 → 1.0.2

Removed — caused crashes

  • Sinytra Connector · ConnectorExtras · Origins (Connector build)

Removed — caused visual bugs

  • FancyMenu + Konkrete — double-rendered the title screen over Aether Redux's menu
  • First-person Model — appeared in all four player-model mixin collision sets; caused the split-face rendering bug

Removed — version conflict

  • Dark Doppelganger · Twilight Spellbooks (both require Iron's Spellbooks 3.16.2+)

🐛 BUGS FIXED

Bug Cause Fix
Quest book completely empty Quests were written to <world>/ftbquests/ — FTB Quests reads from config/ftbquests/quests/ Path corrected, proven by disassembling ServerQuestFile.load()
Quest files silently ignored SNBT used space-separated values on one line Comma-separated every list and inline compound
Duplicate acts in the book Generator never cleared old chapter files Directory now cleared before each build
Visible \n in quest text Mod descriptions carry literal backslash-n; esc() doubled it Stripped before wrapping
21 quest icons showed as purple ? A lang entry doesn't prove an item is registered Now cross-checked against real item models
Same icon on 37 quests Structure-only mods register no items Added a themed vanilla fallback pool
Broken items as rewards _inventory render variants and potion_charm_broke Filtered from all reward pools
Published version crashed on world load Density datapack copied from the full pack still referenced 5 removed mods Regenerated against its own mod set
HUD bars stacked on each other Mana anchored to hunger; hydration at the same offset Mana +22, hydration −11
JVM wouldn't start Typo in the flags I supplied — InitiateHeapOccupancyPercent Corrected to Initiat**ing**…, tested against the actual JRE

⚙️ PERFORMANCE & CONFIG

  • JVM-Xms matched to -Xmx at 10 GB + full G1GC tuning. The heap was growing from 256 MB to 12 GB during chunk loading — every growth step was a stall
  • Distant HorizonsFEATURES → PRE_EXISTING_ONLY, threads 7 → 3, duty cycle 1.0 → 0.5. It was generating terrain for 27 dimensions while you played
  • Improved MobsbreakTileEntities false (protects Create, AE2, Mekanism and chests), whitelist flipped to blacklist so mobs dig through ordinary walls, obsidian made a meaningful defensive block, stealing 30% → 15%
  • Blood Moons: chance 0.10 → 0.45, minimum gap 4 → 3 nights, monster multiplier 2.25 → 3.5

🌍 WORLDGEN

  • 406 structure sets rewritten — spacing halved, every salt made unique
  • Fixed a silent conflict where 41 sets shared a salt and 16 declared none, causing dozens of structure types to compete for identical chunks and never generate
  • Result: roughly 4× structure density
  • Moved to Paxi's global folder so it applies to every world, including new ones

🧹 PUBLISHING CLEANUP — 32 files

CurseForge rejects any CurseForge-hosted archive bundled in the zip. It reported the first two; a full sweep found thirty more.

What Count
.disabled jars in mods/ 12
Loose jars in essential/ 11
Hidden mods/.connector/ cache (dot-prefixed, invisible in a normal listing) 3
CurseForge-hosted shaderpacks 6
CurseForge-hosted resourcepacks 2

Final state: 332 jars, all at the top level of mods/, zero nested, zero elsewhere, zero CurseForge-tracked files outside mods/.


🔧 TOOLING BUILT

Five validators, in _packtools/, run before every release:

  • preflight.py — duplicate mod ids, wrong MC versions, missing dependencies, version violations. Recurses into both META-INF/jarjar/ and META-INF/jars/, resolves ${file.jarVersion} from the manifest, and scans nested module dependencies
  • mixinscan.py — parses 3,478 mixin classes' constant pools to find two mods claiming the same injection point
  • worldscan.py — structure salts, spacing, and spawn biome modifiers
  • check_snbt.py — quest syntax (verified against a deliberately broken file)
  • check_ids.py — every icon, item, entity, dimension and structure resolves
  • Plus generators for the quest book, currency, density datapack, EMC lock and menu art

Two gaps found in my own tooling and fixed:

  1. preflight.py only read top-level dependencies, so a nested JarJar module's requirement was invisible — it reported "none missing" immediately before a hard crash

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