MQLight (nuget): Unobtrusive games oriented Message Queue.  MQLight was designed for use in games (specifically XNA / monogame), but is thread safe and has been used in business applications.  NOTE: Please make sure to call the Update method at the top of your game's update loop. Business applications can simply call the Update() method in a thread as fast as required.
Keywords: game|message|queue|lightweight|unobtrusive|queueing|XNA|mono|monogame