QB64 is completely free and open source, check out our GITHUB repository Over 50 years of BASIC compatibility and (as close as we can get without being an emulator like DOSBOX) 100% compatible with MS QBASIC/QB4.5 code Create networked applications and games easily using our TCP/IP interface Load common image formats such as GIF, BMP, PNG and JPG Use 3D audio with support for a variety of formats