OptiScaler Client

OptiScaler Client is a modern, high-performance desktop utility designed to simplify the installation, management, and update of the OptiScaler mod across your entire game library. Built with C# and Avalonia UI.

?? Disclaimer: This is not an official OptiScaler project. I am not affiliated with the OptiScaler team. This is a personal project developed without any commercial purpose. Anyone is free to try and use this software at their own risk.

🚀 Key Features

Game Discovery

Multi-Platform Auto-Scanner — Scans Steam, Epic Games, GOG, EA, Ubisoft, Battle.net, Heroic, and Xbox/Microsoft Store libraries in parallel. On Linux, only Steam and Heroic (Epic Games, GOG) are scanned automatically. Custom Folder Scanning — Add any folder as a scan source for DRM-free or standalone games. Manual Game Addition — Add games by selecting the executable directly. Drive Root Filtering — Limit scanning to specific drives. Smart Exclusions — Pre-configured exclusions for non-game entries (e.g., Wallpaper Engine, Steamworks Redistributables). Cover Art Fetching — Automatically fetches game cover art from Steam API and SteamGridDB with local caching.

Installation & Uninstallation

Quick Install / Uninstall — One-click toggle per game directly from the main view. Automatically downloads components if not cached. Auto Install — Detects game directory structure automatically, including UE5/Phoenix game layouts. Manual Install — Select the target executable manually for non-standard game structures. Bulk Install — Install OptiScaler across multiple games at once with platform filtering, component selection, and profile application. Injection Method Selection — Choose the DLL injection method: dxgi.dll, winmm.dll, d3d12.dll, dbghelp.dll, version.dll, wininet.dll, winhttp.dll. Backup & Restore — Original game files are backed up before installation and restored on uninstall.

Component Management

OptiScaler — Core upscaling mod with stable and beta version channels. Fakenvapi — Compatibility layer for AMD/Intel GPUs, installed alongside OptiScaler when needed. Nukem's DLSSG-to-FSR3 — Frame generation bridge that converts DLSS Frame Gen to FSR3. FSR 4 INT8 Extras — INT8 shader injection for non-RDNA 4 GPUs. OptiPatcher — ASI plugin loader, automatically configured with LoadAsiPlugins=true in OptiScaler.ini.

Profiles

OptiScaler Profiles — Create, edit, clone, and manage INI-based configuration profiles. Easy Mode Editor — Simple toggle-based interface for common settings. Advanced Mode Editor — Full section-based settings editor with search and sidebar navigation. Default Profile — Set a default profile that is applied automatically during Quick Install and Bulk Install. Built-in Default — "OptiScaler Standard" profile ships out-of-the-box with sensible defaults.