I create animated films, working alone (aside from the talented efforts of my voice actors) in all aspects of production which would typically involve a full studio of artists. From storyboard, concept art, modeling, animation, rendering, compositing, visual effects, editing, sound and music.
Filmmaker M.Dot Strange has coined the phrase Uberector to describe this process. A singular creative vision, a new kind of filmmaker empowered by modern digital technology which enables anyone to singlehandedly create a feature film.
My 3D application of choice is the free and open source Blender, which has everything you need for the the entire visual content creation process, plus a supportive and enthusiastic user base, and an actively developed and continually refined code base. Blender is the 3D animation tool of choice whether you are a beginner or a veteran in 3D animation.
For audio recording, sound effects, foley, and music I use the Reaper Digital Audio Workstation.