Empire vs HatchBox: What are the differences?
Developers describe Empire as "A Self-Hosted PaaS Built on Docker and Amazon ECS". Empire is a control layer on top of Amazon EC2 Container Service (ECS) that provides a Heroku like workflow. It conforms to a subset of the Heroku Platform API, which means you can use the same tools and processes that you use with Heroku, but with all the power of EC2 and Docker. On the other hand, HatchBox is detailed as "Super easy Rails servers". Configure any server to run Ruby on Rails servers in minutes and without hassle.
Empire and HatchBox can be categorized as "Platform as a Service" tools.
Empire is an open source tool with 2.53K GitHub stars and 156 GitHub forks. Here's a link to Empire's open source repository on GitHub.