ScreenMonkey Lite
If your online gaming needs are modest, NBOS offers ScreenMonkey Lite. This is a free version of ScreenMonkey. ScreenMonkey Lite doesn't support all the features found in the full commercial version of ScreenMonkey, but is still very useful for running online games.

ScreenMonkey Lite is available on the ScreenMonkey Downloads page.

Feature Matrix ( = Feature Supported)

Feature	ScreenMonkey	ScreenMonkey Lite
Web based player inteface
GM server application
Automatic router configuration
Interactive miniature map
Integrated chat w/ dice
Chat archives
Game announcements to NBOS site
Custom game announcement sites
Map annotation
'Masking' hidden areas
Facing and looking arrows
Grids and grid numbering
Scenario saving/restoring
Fractal Mapper integration
Customizable HTML templates
Scripting Engine
Multiple monitor support

The system requirements for ScreenMonkey Lite are the same for the full commercial version.