Thunder Mace — Storm Realm, Bosses, Mace Ultimates & a Flying Steed

Requirements

• Minecraft 1.21.1, Java 21
• Fabric Loader ≥ 0.16 (built against 0.19.5)
• Fabric API (built against 0.116.17+1.21.1)
• Works on dedicated servers and singleplayer. Install on both client and server for multiplayer.

Features

Thunder Mace — a legendary mace with four ultimates (Gravitational Collapse, Thunder Strike, Black Hole, Earthquake). Switch with R or Sneak + mouse wheel. No cooldowns: spam caps and durability instead.

Storm Realm — a floating-island dimension with eternal thunder. Build a copper-frame portal and light it with the Storm Igniter. Fight Storm Spirits, tame Storm Wolves, raid Storm Towers and Storm Dungeons (traps, spawners, loot, the Storm Guardian mini-boss), and summon the Storm Lord at the Storm Altar (3 Thunder Cores).

Gear — Thor's Hammer (throw, fly, storm call, smite), Zeus Gauntlet, Blade of the Tempest, Storm Trident, Storm Bow, Storm Shield, Storm Wings (elytra), Thunder and Storm Lord armor sets, 3×3 Storm Pickaxe/Shovel and tree-felling Storm Axe, Storm Forge upgrades, Totem of Life (+9 hearts), Rings of Power (speed, night vision, strength, jumping), Storm Backpack (27 slots, key B).

Magic Staff — Fireball (hostile-only, no fire on blocks), Heal (you, players and pets), Teleport (blink up to 20 blocks).

Storm Steed — a rideable, glowing flying horse. Tame with a Storm Apple, saddle it, then Jump = up, Sneak = down. Immune to fall, lightning and fire.

Storm Villages — surface villages in the realm with 3 peaceful Storm Traders who sell apples, potions, rings, enchanted books, saddles, the steed egg, staff, lifts and teleporters for Storm Shards.

Utility blocks — Storm Lift (jump = up, sneak = down in a 64-block column), Storm Teleporter + Storm Link (linked pairs, cross-dimension), Storm Turret, Bouncer, Conductor, Lamp, Trap, decorative storm stone/brick sets.

House rules

No cooldowns · abilities only hurt hostile mobs (never players, villagers, pets, golems) · no block griefing (except mining tools) · everything is in the Thunder Mace creative tab · English + Russian.

Crafting highlights

• Storm Shards drop from Storm Spirits; Thunder Core from the Thunder Golem (built with a Thunder Totem).
• Magic Staff: _ST / _BS / B__ (T Thunder Core, S Storm Shard, B blaze rod)
• Storm Lift (×2): PSP / SES / PSP (P polished storm stone, S shard, E ender pearl)
• Storm Teleporter: PSP / SXS / PSP (X eye of ender) · Storm Link: S / E / S
• Ring of Power: SGS / GXG / SGS (G gold ingot, X sugar / golden carrot / blaze powder / rabbit's foot)
• Storm Backpack: LSL / LCL / LSL (leather, shard, chest)
• Recipes unlock via advancements. Full list: see the in-game recipe book / README.

Controls

Commands

• /locate structure #thundermace:storm_villages · #thundermace:storm_dungeons · thundermace:storm_altar · thundermace:storm_tower (inside the realm)
• Dimension id: thundermace:storm_realm (/execute in thundermace:storm_realm run tp @s ~ 100 ~)

Config

config/thundermace.json (created on first launch): particleDensity (0.25–1.0, client effects), shakeEnabled (camera shake).

Compatibility

• Sodium / Iris: no render mixins and only vanilla renderer classes are used. Tested only that the mod loads on a dedicated server with Fabric API; Sodium 0.6.13 + Iris 1.8.8 were not run together with the mod in a real client by the author — please report issues.
• Other mods: the mod adds its own dimension and entities; no known conflicts.

Known issues

• Flight of the Storm Steed, textures and tooltips have not been verified in a real game client by the author — feedback welcome.
• Server-side particle effects (ultimates) are not affected by particleDensity.
• Mod is designed for 1.21.1 only.