Orleans is a framework that provides a straightforward approach to building distributed high-scale computing applications, without the need to learn and apply complex concurrency or other scaling patterns. It was created by Microsoft Research and designed for use in the cloud.
Orleans has been used extensively in Microsoft Azure by several Microsoft product groups, most notably by 343 Industries as a platform for all of Halo 4 and Halo 5 cloud services, as well as by a growing number of other companies.
Scalable by Default
Orleans handles the complexity of building distributed systems, enabling your application to scale to hundreds of servers.
Orleans allows you to keep the state you need in memory, so your application can rapidly respond to incoming requests.
Orleans allows you to write simple, single threaded C# code, handling concurrency with asynchronous message passing between actors.