What is Project Darkstar?
Project Darkstar is software infrastructure that aims to simplify the development and operation of massively scalable online games, virtual worlds, and social networking applications.  Originally created by Sun Microsystems, it is today advanced as an open source project through the Project Darkstar Community.

What problems does Project Darkstar solve?
Project Darkstar is designed to help developers and operators avoid a range of serious, yet typical, problems associated with massive scale online games today, including zone overloading, data corruption, and server under-utilization.  In addition, Project Darkstar will enable developers to support new dimensions of play such as evolvable virtual worlds and very large scale battlefields.

Who is Project Darkstar designed to serve?
Project Darkstar is designed to be used directly by developers and operators of massively scalable online games, virtual worlds, and social networking applications.  Indirectly, Project Darkstar may also serve publishers of these applications, to whom development and operational time and cost savings are often transferred.

Resources
If you're new to Project Darkstar, take a look at the Project Darkstar Datasheet, or try tapping into these resources to figure out whether or not Project Darkstar is right for you.