FreeCAD - An open-source parametric 3D modeler
Crimsonland - Crimsonland.com - a top-down shooter with a touch of RPG: gain XP, choose perks, unlock weapons, and blast your way through aliens, zombies, and lizard men. Coming soon to Steam and PS4!
LibreCAD - An open source 2D CAD application for Windows, Apple and Linux.
HELLDIVERS - Helldivers is an Adventure-based, Shoot em’up, Co-op, Single and Multiplayer video game developed by Arroshead Games Studios and published by Sony Computer Entertainment.
SketchUp - 3D for Everyone
Assault Android Cactus - Assault Android Cactus is an Action, Arcade, Top-down Twin Stick Shooter, Co-op, Single and Multiplayer video game developed and published by Witch Beam.