---
title: "OptiScaler documentation | OptiScaler"
description: "Index of OptiScaler pages for people and answer engines. Homepage UI is unchanged; these URLs are the crawlable catalog for OptiScaler 0.9.4."
canonical: https://optiscaler.ink/docs
updated: 2026-10-18
---

# OptiScaler documentation: install, outputs, FSR4 and Linux

Index of OptiScaler pages for people and answer engines. Homepage UI is unchanged; these URLs are the crawlable catalog for OptiScaler 0.9.4.

## Facts (2026-10-18)

- **Version:** OptiScaler 0.9.4 (reference build, July 2026)
- **APIs:** DirectX 11, DirectX 12, Vulkan
- **Upscalers:** DLSS, FSR and XeSS inputs/outputs where compatible
- **Frame generation:** Experimental OptiFG (DirectX 12)
- **Overlay:** Insert key
- **Install:** ZIP extracted next to the main game executable
- **Platform:** Windows; Linux via Proton/Wine varies
- **Site:** Independent guide — not the official project site

## What this hub is

Index of OptiScaler pages for people and answer engines. Homepage UI is unchanged; these URLs are the crawlable catalog for OptiScaler 0.9.4.

OptiScaler 0.9.4 is a community translation layer for DirectX 11, DirectX 12 and Vulkan games. This host is an independent guide, not the official project site. Start from [Download](https://optiscaler.ink/download), then come back here for the per-game checks.

## The safe order

1. Back up the game folder.

2. Extract the ZIP next to the main game executable.

3. Launch offline and press Insert.

4. Change one output at a time, and never test in online or anti-cheat protected games.

## OptiScaler basics: related searches

- [What Is OptiScaler?](https://optiscaler.ink/keywords/what-is-optiscaler)

- [How Does OptiScaler Work?](https://optiscaler.ink/keywords/how-does-optiscaler-work)

- [OptiScaler Download](https://optiscaler.ink/keywords/optiscaler-download)

- [Download OptiScaler](https://optiscaler.ink/keywords/download-optiscaler)

- [OptiScaler Latest Version](https://optiscaler.ink/keywords/optiscaler-latest-version)

- [OptiScaler 0.9.4](https://optiscaler.ink/keywords/optiscaler-0-9-4)

- [OptiScaler 0.9.4 Download](https://optiscaler.ink/keywords/optiscaler-0-9-4-download)

- [OptiScaler Release](https://optiscaler.ink/keywords/optiscaler-release)

- [OptiScaler Windows](https://optiscaler.ink/keywords/optiscaler-windows)

- [OptiScaler DirectX 11](https://optiscaler.ink/keywords/optiscaler-directx-11)

- [OptiScaler DirectX 12](https://optiscaler.ink/keywords/optiscaler-directx-12)

- [OptiScaler Vulkan](https://optiscaler.ink/keywords/optiscaler-vulkan)

- [OptiScaler DX11](https://optiscaler.ink/keywords/optiscaler-dx11)

- [OptiScaler DX12](https://optiscaler.ink/keywords/optiscaler-dx12)

- [OptiScaler DLSS](https://optiscaler.ink/keywords/optiscaler-dlss)

- [OptiScaler FSR](https://optiscaler.ink/keywords/optiscaler-fsr)

- [OptiScaler XeSS](https://optiscaler.ink/keywords/optiscaler-xess)

- [OptiScaler Frame Generation](https://optiscaler.ink/keywords/optiscaler-frame-generation)

- [OptiScaler OptiFG](https://optiscaler.ink/keywords/optiscaler-optifg)

- [OptiScaler What Is OptiFG](https://optiscaler.ink/keywords/optiscaler-what-is-optifg)

- [OptiScaler Compatibility](https://optiscaler.ink/keywords/optiscaler-compatibility)

- [OptiScaler Compatible Games](https://optiscaler.ink/keywords/optiscaler-compatible-games)

- [OptiScaler Supported Games](https://optiscaler.ink/keywords/optiscaler-supported-games)

- [OptiScaler Unreal Engine](https://optiscaler.ink/keywords/optiscaler-unreal-engine)

- [OptiScaler Unity](https://optiscaler.ink/keywords/optiscaler-unity)

- [OptiScaler AI Upscaling](https://optiscaler.ink/keywords/optiscaler-ai-upscaling)

- [OptiScaler Guide](https://optiscaler.ink/keywords/optiscaler-guide)

- [OptiScaler Official Website](https://optiscaler.ink/keywords/optiscaler-official-website)

- [OptiScaler GitHub](https://optiscaler.ink/keywords/optiscaler-github)

- [OptiScaler 0.9.4 Download Linux](https://optiscaler.ink/keywords/optiscaler-0-9-4-download-linux)

- [OptiScaler How to 0.9.4 Download](https://optiscaler.ink/keywords/optiscaler-how-to-0-9-4-download)

- [How to Download OptiScaler](https://optiscaler.ink/keywords/how-to-download-optiscaler)

## FAQ

### 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.

## Related

- [OptiScaler FAQ: the official 20 questions, answered](https://optiscaler.ink/faq)
- [OptiScaler guides: install, FSR4, Linux, performance and safety](https://optiscaler.ink/guides)

## Download

ZIP next to the game executable: [Download OptiScaler](https://optiscaler.ink/download)

Markdown mirror: https://optiscaler.ink/docs.md