Gimp is a photo editing application similar to photoshop with the benefit of being free!
Unity is a robust game development platform. It has particular strengths in VR and AR development.
Create content for film, tv and games with Blender. With 2.8 on it’s way it’s becoming more and more popular in the industry and..it’s free!
Studio One is a complete studio environment and amongst the most used DAW systems in the industry.
Hit-film is a video editor and compositor built to make special effects a breeze. There is a free version and it’s growing in popularity.