Just Install - just-install - The stupid package installer for Windows.
Travis CI - Focus on writing code. Let Travis CI take care of running your tests and deploying your apps.
Windows Remix - Web-based batch software installer with zero dependencies. Recommended first visit after reinstalling Windows or buying a new laptop.
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Scoop - A command-line installer for Windows
Chef - Automation for all of your technology. Overcome the complexity and rapidly ship your infrastructure and apps anywhere with automation.