FreeBASIC is a multiplatform, free/open source (GPL) BASIC compiler for Microsoft Windows, protected-mode MS-DOS (DOS extender), Linux, FreeBSD and Xbox.
License: Open Source
FreeBASIC is a lightweight and beginner-friendly language ideal for low-level programming and game development, whereas C# is a powerful, feature-rich language designed for enterprise applications, web development, and cross-platform solutions. While FreeBASIC offers simplicity and speed, C# provides extensive libraries, frameworks, and community support for more complex applications.