Create your own world
One thing that sets Worldforge apart from most other online worlds is our focus on making sure that anyone can build and host their own world. Since everything we do is Free Software you're free to use all of our code and assets for whatever world you envision. Only your imagination sets the limit.
Whether you want a traditional MMORPG, with a medieval setting and monsters to fight, or a world filled with puzzles, or just a world where you can hang out with your friends, Worldforge provides the tools that you need.
Start out by first installing the Ember client and making yourself comfortable with it. The Ember client is powerful and is used both by players as well as world authors. Once you've gotten the hang of it you should run your own server. With your own server you're now free to alter the world to your whims. Using the client you can create your own world, complete with your own terrain and your own entities. Initially you probably want to mainly focus on reusing the existing assets, but in a new setting of your own choosing.
As you've become more familiar with the system you might want to go even further and start altering the game rules. The default ruleset is called Deeds. The ruleset specifies all of the types of entities that are available (such as creatures, vegetation, items and so on) as well as how these interact. This is all defined using a combination of declarative specifications and Python code. And everything is available as Free Software. The Deeds ruleset is focused on light combat and crafting. You can use that as a base for your own very specific world, with it's own rules.