Oni - An IDE powered by Neovim
Selenium - Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily, it is for automating web applications for testing purposes, but is certainly not limited to just that.
Visual Studio Code - Build and debug modern web and cloud applications, by Microsoft
RimWorld - RimWorld - A sci-fi colony sim driven by an intelligent AI storyteller.
GraphWalker - GraphWalker is an open source Model-based testing tool for test automation. It's designed to make it easy to design your tests using graphs.
Dragon - Burn different kind of data and audio files to CD or DVD disc. Build ISO image files.