This is a step-by-step guide for how to use RivaTuner (RTSS) as lightweight ingame crosshair for fullscreen games.
RivaTuner Statistics Server is a freeware overclocking and hardware monitoring program.
Add (bottom left corner) your game exe or simply use the "Global" profile.
Show On-Screen Display on the right side to "ON".On-Screen Display zoom to 100% (i.e. slider all the way to the left).Setup (blue button on the bottom). A new window opens.Plugins
OverlayEditor.dll to turn it on.Overlay-Editor.dll. The Overlay Editor opens.CTRL + N or by clicking Layouts > New
Program Files (x86)\RivaTuner Statistics Server\Plugins\Client\Overlays.ovl file with a text editor (like notepad.exe).EmbeddedImage=my_crosshair_image.pngInsert or by clicking Layers > Add
+ to add something new.Add embedded image and then on the three dots … to open the Embedded Image Settings.OKOK<I=200,200,0,0,200,200>Apply at any point to preview what your changes do.Sticky layer position and select the center square.Text size, in percents to zero. If you discover that your crosshair is not perfectly vertically centered, set this to any negative value. You can help debug the positioning by activating "Use custom background color" in this window.OKCTRL + S or Layouts > SaveOK