AgaueEye is a free hardware monitor geared towards gamers capable of overlaying your system information while playing games.
Right away, you'll notice AgaueEye gets it right by using a straightforward interface with plenty of options underneath the hood but not in your way. You can monitor your CPU, GPU, RAM, HDD, and more. Overlay types include text, graphics, hidden, and disable, all with numerous customizations to go along with your choice. Moving on, you can also change the refresh time, position, and hotkeys. Compatibility options include OBS, Anti-Cheat, and the aforementioned Unknown Game Support. Of course, starting with Windows is also optional.
AgaueEye supports thousands of games as well as Steam, Origin, UPlay, and more. It's possible to get a game working with AgaueEye by trying the "Unknown Game Support" from your system tray.
While AgaueEye is geared towards gamers with specific features, don't let that scare everyone else away. It's an excellent, unobtrusive hardware monitor anyone can use.