Chernobylite - HDR Optimized Settings (Patreon)

The game is NOT using/applying Xbox/Playstation HDR Calibration app settings.

The game recently received a free "Next-Gen" upgrade which also introduced an HDR "On/Off" option with no actual control of Peak HDR Luminance or other HDR values.

At the moment, the HDR toggle seems limited to the PC version only.

Measured Peak HDR Luminance didn't exceed 200 nits leading to think that the game actually remains an SDR title just contained within an HDR signal.

That said, even if Peak Luminance was basically the same as SDR within the HDR signal, colors noticeably improved in it so it's still recommended to play it in HDR but it is suggested to use Dynamic Tone Mapping in order to offset the SDR luminance and restore an HDR effect as much as possible, tweaked by the TV algorithms.

If and when the HDR toggle will be patched to console versions too, the same suggestions for PC should be valid also there. In the meanwhile, you can play it in SDR.