Hi @franklincabness. Lore here.
There could be several reasons why your PlayStation 5 (2021 revision) is shutting off during gameplay. Overheating and power problems are the most likely culprits. Here are some steps you can take to troubleshoot the issue:
# ***Check for overheating***: If your PS5 is shutting down mid-game, particularly when playing more intensive AAA games, it’s likely overheating caused by dust build-up. Try cleaning the console and ensure that it is well-ventilated.
# ***Update your firmware***: Ensure that your PS5 is running the latest firmware version. You can check for updates by going to Settings > System > System Software > System Software Update and Settings > Update System Software.
# ***Disable Rest Mode and/or HDMI Link***: If other issues have been ruled out, try disabling Rest Mode and/or HDMI Link.
If the issue persists, you may need to contact PlayStation support for further assistance. I hope this helps!