Ruffle - An open source Flash player
VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
BlueMaxima's Flashpoint - the webgame preservation project.
AIMP - AIMP : Free Audio Player : Официальный сайт программы
CheerpX for Flash - its adobe flash player in webassembly
foobar2000 - An advanced freeware audio player for the Windows platform.