PC Builder - Custom PC part picker tool to build your PC
Unity - The multiplatform game creation tools for everyone.
BuildMyPC - Custom PC part picker tool to build your PC
Godot Engine - Feature-packed 2D and 3D open source game engine.
ChooseMyPC - ChooseMyPC is simply called to be one of the best PC builders available over the internet allowing the PC buyers to automatically generate a list of computer parts for their budget and requirements.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.