Manual Installation

For Nvidia

Step-by-step installation:
1. Extract all Optiscaler files from the zip by the main game exe (for Unreal Engine games, that's usually the win_shipping.exe in one of the subfolders, generally <path-to-game>\Game-or-Project-name\Binaries\Win64\, ignore the Engine folder).
2. Rename OptiScaler's OptiScaler.dll (for old versions, it's nvngx.dll) to one of the supported filenames (preferred dxgi.dll, but depends on the game)$^1$

Note

For FSR2/3-only games that don't have DLSS (e.g. The Callisto Protocol or The Outer Worlds: Spacer's Choice Edition), you have to provide the nvngx_dlss.dll in order to use DLSS in Optiscaler - download link e.g. TechPowerUp or Streamline SDK repo

For AMD/Intel

Step-by-step installation:
1. Extract all Optiscaler files from the zip by the main game exe (for Unreal Engine games, that's usually the win_shipping.exe in one of the subfolders, generally <path-to-game>\Game-or-Project-name\Binaries\Win64\, ignore the Engine folder)
2. Rename OptiScaler's OptiScaler.dll (for old versions, it's nvngx.dll) to one of the supported filenames (preferred dxgi.dll, but depends on the game)$^1$
3a. Either locate the nvngx_dlss.dll file (for UE games, generally in one of the subfolders under Engine/Plugins), create a copy, rename the copy to nvngx.dll and put it beside Optiscaler
3b. OR download nvngx_dlss.dll from e.g. TechPowerUp or Streamline SDK repo if you don't want to search, rename it to nvngx.dll and put it beside Optiscaler

---

Tip

[1] Linux users should add renamed dll to overrides:

WINEDLLOVERRIDES=dxgi=n,b %COMMAND% 

Important

Please don't rename the ini file, it should stay as OptiScaler.ini.

Note

OptiScaler supports these filenames:

• dxgi.dll
• winmm.dll
• dbghelp.dll (nightly only)
• version.dll
• wininet.dll
• winhttp.dll
• OptiScaler.asi (with an ASI loader)

---

Note

Example of correct installation (with additional Fakenvapi and Nukem mod)