Blender

Blender needs little introduction: full 3D pipeline (modeling, sculpting, rigging, animation, simulation), the Cycles and EEVEE renderers, grease pencil 2D animation, motion tracking, and even a video sequence editor. It’s the rare open-source project that’s genuinely industry-competitive against 3ds Max, Maya, and Cinema 4D, with a massive tutorial ecosystem and add-on marketplace.

The honest caveats: studio pipelines are still built around Autodesk, so if you need job-market compatibility with Max/Maya specifically, Blender skills transfer imperfectly. The learning cliff is real despite years of UI improvements. And its video editor, while functional, isn’t why you install it — use Kdenlive for that.