RetroArch is a frontend for emulators, game engines and media players.
3D Engine c++
A promising chess program
Open Source Monitoring System for performance and availability.
Pascal Units for Medical Applications
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
inputbox password WIN OSX GTK QT Console VCPKG C# Lua R Fortran Pascal
Free 32/64/16-bit multi-platform Pascal and Object Pascal compiler
A cross-platform interpreter for many point-and-click adventure games
Very Powerfull Crossplatform Qt Based Music Note Editor[Still Planing]
Nurikabe, a great game.
Pig2D is a game engine for Java that uses a sprite-based interface.