Classic FPS Doom is running in Microsoft Notepad thanks to game developer Sam Chiet, who shared footage of the shooter project that has now gone viral ...

Windows Notepad is a simple text editor that has been around since the 1980s. This software commonly allows users to create and edit basic text documents.

Most code editors are similar to notepad.exe in that they are "text editors", but unlike notepad.exe they have functionality built into them to send the code into the compiler.