Leklai

A barebone RPG framework mod for Minecraft Fabric 1.21.1 1.21.11 that rips out vanilla damage and rebuilds it from scratch. Ragnarok Online meets Black Desert — stat allocation, class evolution, skill chaining, and a full elemental damage pipeline. No fluff, just systems.

This is a mod release. Only the Novice class and Basic Skill are implemented. Everything else is scaffolding stuff are create via datapacks and the API.

What This Mod Does?

Replaces Vanilla Damage Entirely

The entire damage calculation is change, the armor are little more weak before ~80% at full diamond after 50% reduction

RPG Systems

Stats (Ragnarok Online Style)

Six stats: STR, AGI, VIT, INT, DEX, LUK

Levels

Two-tier leveling:

• Base Level (1–99): Earns stat points for character growth
• Class Level (1–50, varies): Earns class points for skill learning

XP curves are fully configurable in server config. Death penalty (10% XP loss by default) is toggleable and customable percentage.

Classes (Datapack-Driven)

Tier system: Novice → 1st Class → 2nd Class → Transcendent

• Evolution: Novice evolves at class level 10 with maxed Basic Skill. Higher tiers evolve at level 45 with all class points spent.
• Transcendence: Resets class level to 1, wipes stats, grants 4× starting stat points. You lose everything but come back stronger.
• All class data lives in datapacks — tiers, branches, attribute modifiers, growth factors, job bonuses, resource pools.

Currently implemented: Novice only. The framework is here, the content is on you.

Skills (Black Desert Style)

Three skill types:

• Castable: Press-to-cast with windup → active → recovery phases
• Holdable: Charge-and-release with hold animations and forced release timeout
• Passive: it do nothing just flag for apply attribute modifiers

Skill chaining: Recovery windows allow chaining into the next skill's active phase, skipping windup. Build combos.

Skills have prerequisites, resource costs, cooldowns, damage profiles (element + combat type), and bind to 8 hotkey slots.

(Novice passive — unlocks party features and class evolution). other mod are adding the skill via coding

Party System

Up to 4 players (configurable). Create, invite, kick, transfer leadership. Health and resource bars sync to all members every second. Requires Basic Skill level 5+ to join, 7+ to create, and it have distance penalty if player are far away it less exp gain.

Resource System

Per-class resource pool (SP/MP equivalent). Base 10 + class growth scaling. Regenerates on a timer — faster when sitting, passive regen when idle. Skills consume resources.

Vanilla Changes

Configuration

Server config (leklai_server.json5) controls:

• Max level, starting stat points, XP curves
• Max party size, max stat value
• Death penalty toggle and percentage
• Skill unlearning toggle
• Food healing, collision, environment damage rebalance

Client config (leklai_client.json5) controls:

• AAll UI stuff
• The damage indicator YACL config screen included via ModMenu.

PlateauLib (Internal lib) and Cardinal Components API are bundled — no separate install needed. since I'm currently maintain one mod I don't think it need to separate plateaulib since it just simple attributes registry stuff and the ui rework from the penomior.

Leklai

⚠️ Note: Development Hiatus

The project is currently on a temporary hiatus.

I'm currently busy rewriting the animation system and working on a major overhaul of the EXP progression system. in version (3.0.0)

Current Changes

• EXP is currently only obtainable from dungeons.
• Overworld mobs no longer grant EXP.
• This change was made to make balancing easier during development.

Future Work

The EXP system and related mechanics need a complete redesign and stabilization before further development continues.

Since I currently don't have enough time to actively work on this project, development will be paused for a while.

This mod is the successor to Dominatus: Refinement, Crital, and Penomior.

After many rewrites — mainly due to Minecraft updates and mapping change — I’ve finally found the direction what I want this project to become. That’s why this mod now exists in its current form.

Elements of the original Penomior stats system still exist, but they’ve been tweak to balance the class system. The old refinement mechanic have been removed and replaced with a system focused on classes and skills instead.

This mod are aim to be as barebone lib as possible — with less implementation, mostly API for my other mod to build on, so I can focus on classes mod, skill, or items.

but some content can view on gallery upload in that focus on version some are outdate