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