Firebird RDBMS offers ANSI SQL features & runs on Linux, Windows & several Unix platforms. Features excellent concurrency & performance & powerful stored procedure & trigger language.
More information and downloads at https://firebirdsql.org/, issue tracker is https://github.com/FirebirdSQL/firebird/issues
scriptable gameengine with built-in support for 2D graphics and sound
Geeny is a scriptable gameengine with built-in support for 2D graphics and sound. The scripting language is object oriented, high performance is attainable by using vector and array operations. Win32 C++, full portability planned in the future.