My monitor keep on no signal every time I play games

When the monitor shows no display does it turn off the whole pc and need turning back on?

If the whole pc shuts down it could be a faulty PSU or an over heating cpu/gpu

If the whole pc does not shut down it might be a faulty gpu, it could also be an outdated gpu driver and could need updating

@itzblueifyplays what PC is this? We need more information. Things like

Motherboard (make and model)

Power supply (Watt and make)

Memory (amount and make)

Storage HDD/SSD (make and model)

Video card (make and model). If this only happens while gaming and only after 10-15 minutes,, you want to check your temperatures. Games require a lot of processing power so it stands to reason that your video demand is doing this. MAke sure that your fan is good and clean. Ensure that your thermal paste is not old and crumly etc. MAke sure that you maxed out your memory and have a video card that can handle the requirements. Optimize your graphic settings in your OS as well.