Executable
/ˌeksɪˈkjuːtəbl/
Definition 1 of 2
Pro Tip 1/3File Conversion
An 'executable' often starts as source code, which must be converted to run on a computer. 
After you compile the code, you'll have an executable.
Pro Tip 2/3Distinct Extension
'Executable' files usually have specific extensions, like .exe on Windows. 
Make sure your game's file ends with .exe to be executable.
Pro Tip 3/3Careful Sharing
Executable files can contain viruses, so never run unknown executables. 
Received an executable via email unexpectedly? Better not to open it!