Azure Service Fabric is less open then having your VMs in the cloud, but much more flexible with control than Azure app services. Service fabric is a system that can run on your development machines, on Azure cloud, on-premises datacenter, and also on other clouds. Many of Microsoft's own services run on Azure Service Fabric as do those of many big enterprises such as BMW.

Azure Service Fabric is great for web applications, ASP.NET Core, Owin, guest process executions, and containers. The service fabric proposes to develop microservices with reliable services or actor models. With service fabric, you are provided with the following features:

• Life cycle management
• Always on services / VMs behind the scene
• Programming models (ex-reliable actors, reliable services)
• Orchestration
• Health and monitoring of resources
• Dev and Ops tooling
• Auto scaling

Service fabric is great for hyper-scale web, including availability and reliability, hyper-scale, and state management within clusters with continuous delivery and containerization support. These features make it an excellent choice for mass-scaled games, IoT at scale, and microservices-architecture-based implementations.