noblackout is described as 'Simulates activity (=> disables screensaver and powersaving) while running programms (any .exe) from a choosen directory. Main purpose is to choose the steam directory to disable monitor powersaving while running steam games' and is a prevent sleep mode app in the os & utilities category. There are more than 25 alternatives to noblackout for a variety of platforms, including Mac, Windows, Android, Linux and Flathub apps. The best noblackout alternative is Amphetamine, which is free. Other great apps like noblackout are Stimulator, Caffeine for Windows, Caffeine for Linux and NeverNap.