Eldoria — A Text-Based RPG

A console-based dungeon-crawler RPG written in Java. You play a forgotten hero in the land of Eldoria, tasked by the king with infiltrating the Lord's Guild and defeating The Evil Lord to bring peace back to the realm.

Built as the second OOP project for the Computer Science programme at the University of Groningen (Year 1, Block 4).

Gameplay

The game runs in your terminal. You move between rooms, talk to NPCs, fight enemies, collect items, and complete quests until you face The Evil Lord. Every action is driven by numeric menu input.

Player Classes

Pick one of three classes at the start of the game — each has different base stats and play style:

Class	Description
Knight	High health, balanced offense and defense
Assassin	High damage, excellent dodge chance
Tank	Very high health, strong defensive bonuses

Difficulty

Three difficulty levels (Easy / Medium / Hard) scale enemy stats via a global multiplier. Difficulty can be changed at any time from the main menu.

World & Entities

• Rooms connected by Doors, including locked variants (GuardianDoor, EvilDoor) that require specific conditions to open.
• NPCs: Healers restore your HP, Rangers and Fallen Knights offer quests or trade, and Statues (Red / White) give buffs or curses.
• Enemies: Skeletons, Wolves, Lava beasts, and the final boss — the Lord.
• Chests spawn after you clear all enemies in a room and contain weapons.
• Items: Weapons, Shields, and Elixirs, all managed via an inventory UI.
• Quests: Collect quests and Defeat quests track your progress toward the final goal.

Save System

• Quicksave / Quickload (single slot, instant).
• Named saves persisted to the savedgames/ directory via Java serialization.

Running the Game

Requirements

• Java 17+
• Maven 3.6+

Build & Run

mvn clean compile
mvn exec:java -Dexec.mainClass="nl.rug.oop.rpg.Main"

Or, after packaging:

mvn package
java -cp target/rpg-1.0-SNAPSHOT.jar nl.rug.oop.rpg.Main

Project Structure

src/main/java/nl/rug/oop/rpg/
├── Main.java                  Entry point
├── Game.java                  Main game loop and input handling
├── Core/                      Player, Room, Battle, Inventory, save/load
│   └── PlayerClasses/         Knight, Assassin, Tank
├── NPC/                       NPC hierarchy
│   ├── Enemy/                 Wolf, Lava, Lord, generic enemies
│   └── Statue/                Red and White statues
├── Door/                      Door, GuardianDoor, EvilDoor
├── Item/                      Weapon, Shield, Elixir
├── Quest/                     DefeatQuest, CollectQuest
└── Interface/                 Interactable, Inspectable, Attackable

The design relies heavily on inheritance and polymorphism, with shared behavior captured in the Interactable, Inspectable, and Attackable interfaces.

Team — Group 34

• Harry C. Kepler
• arthantyo
• A. Koukoumeli