openScope is an open source browser-based air traffic control simulator
Try it out here: http://www.openscope.co/
Talk to us on Slack: http://slack.openscope.co/
Take a look at our code: https://github.com/openscope/openscope
Aircraft command reference: https://github.com/openscope/openscope/blob/develop/documentation/aircraft-commands.md
Scope command reference: https://github.com/openscope/openscope/blob/develop/documentation/scope-commands.md