Documentation

Erebus is a robot simulation competition environment. You design a robot, and program it to autonomously explore a maze, find and identify wall tokens, avoid obstacles and traps, and build a map of the environment.

This documentation covers Erebus v26, for the RoboCupJunior Rescue Simulation 2026 rules. See Versions for the other supported versions.

The learning path

Follow the steps in order. Each one builds on the one before.

Step	Pages	You will…
Start	What is Erebus?, Installation	Know what you are doing, and have everything installed
1. The game	Rules summary	Know the mission, the field and how to score
2. Your robot	Get your robot, Build your robot	Have the starter robot loaded in Erebus
3. First run	Your first run	Watch your robot explore, and know the control window
4. Programming basics	Your first program, Movement, Sensors	Make your robot move and sense
5. Play the game	Navigate the maze, Communication, Wall Tokens, Exploring and mapping, Mapping rules, Submitting the map	Score points in every way
6. Compete	Preparing for a competition, Remote Controller	Be ready for a competition

Every example uses the starter robot, so load it before running them.

When you need it

Goal	Go to
Design your own robot	Robot Customizer reference
Create your own maps	World Editor
Program in C or C++	C++ controllers
Look up a message or a device name	Reference
Fix a problem	Troubleshooting and FAQ
Come from an earlier version	What’s new in v26