Sephiria Fantasy

Sephiria Fantasy is an unofficial fan mod that brings the Construct of SEPHIRIA into Minecraft — choosing and combining your own artifacts, slates and combos.

This project makes heavy use of AI-generated code; it is shared for learning and personal play only, and commercial use is not allowed.

Alpha stage: there is a decent amount of content, but most of it has not been playtested thoroughly yet — numbers and feel are still being tuned.

Main Content

Weapons

Six base weapons: Default Sword and Shield, Steel Greatsword, Dagger, Colossal Crossbow, Blade and Quarterstaff. Each has its own normal-attack feel and a right-click weapon skill:

• Default Sword and Shield: hold right-click to defend and take 50% less final damage; left-click while defending to sweep; a hit within 0.3 s of raising the shield is a Perfect Guard and makes the next sweep free.
• Steel Greatsword: slow heavy hits; hold right-click to charge for 1.5 s, then release to dash forward and unleash a circular slash.
• Dagger: right-click Parry (dash + area damage + invulnerability); a successful parry grants Focus and refreshes the cooldown, and with Focus, right-click becomes Fury (dash + path damage).
• Colossal Crossbow: 10-round magazine, fixed-damage piercing bolts, press R to reload in 2 s; it does not consume arrows from your inventory.
• Blade: right-click to toggle sheathed / unsheathed; sheathed hits are heavy and slow, unsheathed hits are fast; switching grants brief invulnerability, hits build Sword Intent, and a full-intent sheathed strike becomes a powerful slash.
• Quarterstaff: right-click performs a two-stage Riposte that chains automatically; a Perfect Guard upgrades it to Riposte 3.

All six weapons are unbreakable; the Blade uses GeckoLib skeletal animation.

Artifacts and Combos

83 artifacts across 12 combos: Sturdy, Wind Song, Precision, Shadow, Negotiation, Element, Magitech, Embers, Dark Cloud, Sun Sword, Glacier and Frost Armament (a few artifacts have no combo).

• An artifact with a combo gives 1 level of it by default when placed in the Sephiria Backpack (30 slots by default, 6 wide; up to 54 with Extra Backpack Row items). A 【Unique】 artifact only counts once, using its highest-level copy. Combo tiers trigger at 2 / 4 / 6 / 8 / 10 and stack.
• Artifacts come in five rarities — Common / Advanced / Rare / Legendary / Bond (rainbow) — and have their own level from 0 to a per-item cap, raised with an Artifact Enchant Coin. Effective level = artifact level + slot level; a negative slot level disables the artifact.
• Artifacts in the backpack also provide active skills. Six skill slots can be arranged and rebound; current skills include Encouragement Banner, Haste, Keen Eye, Thunder Verdict and Ice Bow.

Slates

Slates also go into the Sephiria Backpack. They do not add stats directly; they change the level of surrounding slots (up or down). A slate’s pattern lists a delta for each relative slot, and it can be rotated with R (some are fixed). Slot levels are added to artifact levels; a negative slot disables the artifact in it.

• The slate pool has 57 slates across Common / Advanced / Rare / Legendary / Eternal. Two special slates exist: Heaven and the Fusion Slate.
• Heaven: +9 to every slot in the backpack, cannot rotate, never appears in normal loot pools, and only has a 0.01% chance to drop when smelting ancient debris.
• Slate Fusion: two normal slates can be fused at the Sephiria Merchant (once per merchant per player). Their rotations are applied first, then deltas on the same relative slot are added. A Fusion Slate cannot be fused again, and the result is rotatable only if both inputs were rotatable.
• Survival talent stage 3 unlocks Slate Imprint: hold F to consume a slate while keeping its effect on nearby slots.

Getting Stronger and Getting Items

Besides the five main routes below, XP gain also interacts with Fatigue: Fatigue regenerates 1 point per tick up to 6000; gaining XP consumes 40% of the current points and grants 3 bonus XP per 30 points consumed. Every 1000 actual XP also grants one Upgrade Chest.

Talents

Talent points come from advancements that show a toast, boss kills, and character levels (1 point per level, up to 30). There are seven talent pages: Wrath, Swiftness, Survival, Patience, Wisdom, Will and Quick Wit. Each page caps at 20 points, with stages at 5 / 10 / 20. Spending and resetting points requires being within 100 blocks of spawn.

• Wrath: crit chance; stages add crit damage, boss damage and defense penetration.
• Swiftness: attack speed; stages add dodge, dash charges, dash recovery, weapon damage and dash invulnerability.
• Survival: max HP; Advanced-or-better potions grant a random stat, extra backpack slots, and Slate Imprint.
• Patience: defense; +1 slot level for the first backpack row, low-health regeneration, and a revival once every 10 in-game days.
• Wisdom: combat MP regeneration; MP absorption / max MP, duplicate artifact merging, dice from boss kills, +1 free reroll, and +20% XP drop.
• Will: luck; Wishing Pool anchors, max HP / MP.
• Quick Wit: max HP / dodge; backpack slots, one extra chest choice, and damage per active combo type.

Shop

Open it from the Shop tab in the tab bar. The shelf has 6 goods slots, 2 chest slots and 2 potion slots. Goods are 75% artifacts / 25% slates with no duplicates in one batch; the chest slots always hold an Artifact Chest and a Slate Chest.

• Buy with Leaves. Prices by rarity: Common 500 / Advanced 1000 / Rare 1500 / Legendary 2000 / Bond 3000. Slates cost 70% of the artifact price; Artifact Chest 1500 and Slate Chest 1050. Negotiation lowers buy prices.
• Sell price is 30% of the buy price; dice, Enchant Coins and chests are not bought (copper ingots sell for 1 Leaf).
• Refresh: put dice into the dice slot and press Refresh to spend one. Each goods slot has 1 purchase, and the two chest slots share 3 purchases. The shelf persists across sessions.
• All five chest types (Artifact / Slate / Upgrade / Rare Artifact / Rare Slate) stack up to 16 before first opening; an opened chest becomes unstackable again.
• Wisdom stage 3: +1 free reroll; after a dice refresh, the next refresh is free.

Wishing Pool

Craft a Wishing Pool block with a water bucket + a sapling, then right-click to open it. Dropping Upgrade Chests into the pool pulls them in and turns each chest into 1 Clover (a stack counts per chest); completing an advancement that shows a toast also grants 1 Clover.

• The artifact pool and slate pool are separate. A single draw costs 1 Clover, a ten-pull costs 10; rarity is rolled by weight, and duplicates within one batch are allowed.
• Anchor: 1 slot by default, up to 5 with the Will talent; the same item can occupy multiple slots. When a rarity is rolled, anchored items of that rarity share 50% × (1 + rarity step × total anchor count) (Common 5 / Advanced 10 / Rare 15 / Legendary and top tier 20, capped at 100%). Only if that fails is the item picked randomly from the whole tier.
• Draws grant Wish Power: artifacts 2 / 4 / 6 / 8 / 10, slates 3 / 6 / 9 / 12 / 15 (by Common / Advanced / Rare / Legendary / top tier).
• Forge: only Rare and Legendary can be forged, for 80 and 200 Wish Power respectively.
• The screen has an option to turn overflowing Upgrade Chests into Clovers automatically. A Wishing Pool level system is not implemented yet.

Card Selection

Open it from the Card Selection tab. Three artifacts of the same rarity are offered and you pick one; the initial rarity is Common / Advanced / Rare / Legendary at equal odds. Each card can be refreshed once per selection (twice with Wisdom stage 3). A refresh keeps it an artifact, has a 5% chance to upgrade one rarity step (Legendary cannot upgrade), and avoids the other two cards.

• One selection chance is gained every 2 in-game days, starting with 1 and capped at 10 stored.
• Closing without picking does not consume a chance; picking one consumes it and grants that artifact.
• The screen shows charge progress; closing or relogging does not reroll the same set. With no chances left it still opens, but shows no cards.

Sephiria Merchant

A red-robed Sephiria Wandering Trader. Its look and stock are Sephiria-themed, while spawning timing, chance, location and despawning follow the vanilla Wandering Trader. An independent spawner lets it coexist with the vanilla trader (4-minute base spawn delay); it brings 2 trader llamas and leaves after 40 minutes.

• Right-click to open a custom screen. All 9 slots are free: 7 goods slots (Artifact Enchant Coin / Dice / Extra Backpack Row, equal chance) plus 2 potion slots (all Sephiria potions).
• Each slot holds 1 item; taking it sells it out, and there is no restock.
• Each merchant offers Slate Fusion once per player (counted only on a successful fusion).

Increasing Difficulty

Root Retreat

Craft a Root Retreat block with cobblestone + a sapling. It activates when placed within 100 blocks of spawn, or after one full in-game day (24,000 ticks); right-click to open it.

• The left side sets difficulty and the right side is “Your Plan”; each block stores its own plan, and pressing Apply copies the current plan onto the player. Settings only affect that player, not other players, and are kept on death.
• Six difficulty options:
  • Fierce Claws: enemies deal +10% to +80% more damage to you.
  • Tenacious Body: enemies take 20% to 90% less final damage, including true damage.
  • Protective Armor: enemy defense +30 to +150 (reduction uses x/(x+80); does not reduce true damage).
  • Decay: all healing you receive is reduced by 5% to 50%.
  • Tension: you cannot regenerate health in combat (1 level, 4 stages; in combat = within 8 seconds of being hit or dealing damage).
  • Heart’s Burden: on death, 20% to 100% of items in your inventory and Sephiria Backpack disappear (before death drops).
• Total stage = the sum of all option stages; each stage grants +10% XP gain.
• Blessings: Lightness (stage 20: Speed I out of combat, -20% fall damage), Strength (stage 30: Strength III in combat), Courage (stage 40: your name turns yellow).

Requirements

Installation

1. Install Fabric Loader and both dependencies above;
2. Put sephiria-fantasy-<version>.jar into mods/;
3. It works in singleplayer right away; for a server, install the same jar on both sides.

Known Issues

• Numbers and feel are still being tuned; most content has not been playtested thoroughly.
• Weapon forging (base → tier 1 → tier 2),the companion system are not implemented yet.
• Some UI text and icons will still change.

Disclaimer

• License: The mod’s binaries and source are released under the repository’s LICENSE (listed as CC BY-NC 4.0 on Modrinth). Personal play, private modifications, and redistribution inside free modpacks / servers are allowed provided this notice is kept and credit is given; any commercial use is prohibited, for the original and for modified versions alike.
• Fan project: Sephiria Fantasy is an unofficial fan work based on SEPHIRIA. It is not affiliated with, endorsed by, or licensed by TEAM HORAY, Mojang Studios or Microsoft.
• AI-generated code: This project makes heavy use of AI-generated code (models, texture-processing scripts and docs included). It is for learning and technical exchange only; use it at your own judgment, and it is provided “as is” without warranty of any kind.
• Assets: The weapon artwork under src/main/resources/assets/sephiria_fantasy/textures/ and tools/weapon-ref/ is taken from the original game SEPHIRIA and is the property of TEAM HORAY. It is not covered by the license above, and may not be extracted, redistributed separately, or used commercially. Rights holders may request its removal.
• Trademarks: Minecraft is a trademark of Mojang Synergies AB; SEPHIRIA and its setting and artwork belong to TEAM HORAY.
• Source and issue tracker: https://github.com/Lch2018/sephiria-fantasy