In short
Understand OptiScaler Linux usage through Proton or Wine, Vulkan and DirectX translation, driver requirements, prefixes, and practical troubleshooting.
Steps
- Install the game through Steam Proton or a Wine prefix first and confirm it runs stock.
- Place the OptiScaler files next to the main game executable inside the prefix, same as Windows.
- Launch and press Insert; if the overlay is missing, re-check the folder and proxy name before changing Proton versions.
- Expect Vulkan, driver and upscaler requirements to differ from Windows; test one output at a time.
Facts that do not change
Reference build is OptiScaler 0.9.4. Install is a ZIP next to the main game executable; the overlay opens with Insert. Avoid online or anti-cheat protected games, and test offline first.
Frequently asked questions
What is OptiScaler?
OptiScaler is a community tool that can intercept supported in-game upscaler calls and redirect them to another supported upscaling backend, with additional tuning options.
How does OptiScaler work in a game?
The game exposes an input upscaler, OptiScaler sits between the game and the selected output backend, and the chosen output handles the final upscaling path where compatibility allows.
Does OptiScaler support DirectX 11?
Yes, DirectX 11 is supported, although the available output methods and behavior can differ from DirectX 12.
Does OptiScaler support DirectX 12?
Yes. DirectX 12 has broad support and is also the API used by experimental OptiFG functionality.
Practical Checklist
- Keep original files backed up before changing the game folder.
- Test one setting or backend at a time.
- Avoid anti-cheat protected online sessions.
- Document the working configuration before updating.
Related Guides
Continue with the related guides in the sidebar for setup, compatibility, performance, or safety topics.
- OptiScaler guides: install, FSR4, Linux, performance and safety — Step-by-step OptiScaler guides for installation, compatibility, performance, Linux, FSR4 and common user questions.
- OptiScaler FAQ: the official 20 questions, answered — Standalone URLs for the official site's 20 OptiScaler questions — APIs, overlay, FSR4, Linux, anti-cheat and the manager question.
- OptiScaler install guide: clean setup from start to finish — A practical OptiScaler install workflow with backups, correct game executable placement, first launch checks, and reversible troubleshooting.
- How OptiScaler works: input, output and overlay explained — Understand how to use OptiScaler, choose an output upscaler, open the overlay, verify the active path, and tune settings without changing everything at once.
- OptiScaler compatibility guide for DirectX 11, DirectX 12 and Vulkan — Review OptiScaler compatibility concepts for DirectX 11, DirectX 12, Vulkan, upscaler inputs, outputs, and game-specific limitations.