Otrera is an open source role-playing game system. It began as a toolkit for the "Daughtersof Ares" table top RPG (still under development) and evolved into a bigger and more general RPG engine. Otrera was the mother of Hippolyta, Antiope, Penthesilea, and Melanippe, thus the her name suits the project that is the foundation of the original game.

Otrera provides the following tools:

1. Set of core rules and stat systems that can be copied or adapated into original games for personal or commercial use.

2. Character builder tools to test out different classes and builds and simulate level progression.

3. Comprehensive documentation (In Development)

4. Sample content (classes, skills, equipment, etc.) that can also be copied or adapted.

5. Analytical tools to help balance your game. (In Development)

6. The ability to publish character / skill / story / equipment sheets and full game manuals. (In Development)

Otrera is designed to be both simple and complex. You can use the docs to put together a simple pen and paperadventure, or use the software to power a computer game. Building skills and equipment on top of the game engine is very straightforward. Your only limit should be your imagination.