OpenRPG — Modular RPG System

Turn your server into an RPG without external plugins or client modifications. Classes, talents, stats, EXP progression and a public API for developers — all in one lightweight plugin.

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What is OpenRPG?

OpenRPG adds a class system with passive abilities, a talent tree, modifiable stats (damage, defense, speed, critical hit) and level progression — all with an inventory GUI, no complicated commands.

Players pick a class, gain EXP by killing mobs, level up and spend points on a talent tree with prerequisites and skill chains. Each class feels different: the Warrior fights melee, the Mage is powerful at night, the Assassin strikes from the shadows.

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Main features

3 unique classes

Each class has modifiers that activate automatically based on the player's context:

• Warrior — Damage, defense, speed and crit bonuses when enemies are near
• Mage — Night power, arcane shield when low on health, fire aura on hit
• Assassin — Devastating damage while sneaking, high crit chance, life steal

Extensible talent tree

• 18 starting (examples) skills (6 per class) with connections and requirements
• Players earn 1 talent point per level (max 50)
• Skills are loaded from a YAML file — add 1000+ without recompiling
• Visual inventory interface: nodes appear as items and are assigned with a click

Advanced stats

• Damage, defense and speed multipliers
• Critical hit system: chance + multiplier
• All effects stack and sort by priority automatically

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Other features

Multi-language

• Auto-detects the player's client language
• English and Spanish included
• Adding a new language is just creating a .properties file

Full GUI interface

• /openrpg class — Class selection with clickable items
• /openrpg status — Full status: stats, active modifiers, progress
• /openrpg talent — Talent tree with items and lore
• No external GUI plugins — everything uses native Minecraft inventories

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Why OpenRPG?

| Other plugins | OpenRPG |
|---|---|
| Complex configuration with dozens of files | Single optional YAML for skills |
| Tedious commands to check status | Inventory GUI everywhere |
| Closed source or hard to extend | Public API + condition/effect registration |
| Persists in external YAML/JSON | Minecraft's native PersistentDataContainer |
| Hard to modify after install | skills.yml is editable without recompiling |

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Documentation

• Developer API (EN)
• Developer API (ES)
• Skills via YAML (EN)
• Skills via YAML (ES)

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Commands

| Command | Description |
|---|---|
| /openrpg | Help menu |
| /openrpg class | Open class selection |
| /openrpg class <id> | Assign class directly |
| /openrpg status | Player status |
| /openrpg talent | Talent tree |