Text RPGs are text and browser based and not part of a graphical interface like Diablo, therefore you do not need to have anything but an internet connection and a browser.
What makes Text better than Graphic 3D RPGs?
Text RPGs gives you more control because you decide the outcome of everything where as in a 3D environment you can only do what the game limits you to do.
What if I cannot write very well?
You do not have to be perfect just understandable. You can use the spell checker and take your time, no one is rushing you.
Who is the Game Master?
There are many Game Masters. The in-house Text RPGs are managed by an experienced GM (Game Master) that made hundreds of scenarios for Community players. Some Members of the Community also create their own based on Pathfinder, D&D, and others.
Can I start my own Text RPGs?
Yes! The first thing you will need to do is find out how many people are interested in participating. See more here: How To Be A GM