LibreCAD - An open source 2D CAD application for Windows, Apple and Linux.
Alien Shooter 2: Reloaded - Alien Shooter 2: Reloaded combines the elements of Role-playing, Top-down, Action, and Shooter.
FreeCAD - An open-source parametric 3D modeler
Alien Shooter - Alien Shooter is an Engaging, Action, Isometric, Role-playing, Top-down, and Single-player Shooter video game created and published by Sigma Team Inc.
SketchUp - 3D for Everyone
Hotline Miami - High-octane, top-down shooter casting players as an anti-hero on a murderous rampage against the...