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Special K

special-k.info

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Spec score 6.9 #30 of 35 in Graphics optimisers

Spec sheet

Purpose
Special K describes itself as a PC gaming tool for fixing and enhancing graphics, analyzing performance, and addressing issues affecting PC games.Read 8 Oct 2026 · special-k.info
Support
The site recommends joining its Discord for discussions and help.Read 8 Oct 2026 · special-k.info
License
The site's source code is licensed under GNU GPL v3.0.Read 8 Oct 2026 · special-k.info
Achievement integrations
Its achievement tracker supports Steam, Epic and GOG; achievement reset is listed for Steam and GOG.Read 8 Oct 2026 · special-k.info
Controllers
It includes an input emulation layer for PlayStation controllers in games that support only Xbox controllers, plus DualSense Edge features.Read 8 Oct 2026 · special-k.info
Frame pacing
It includes an FPS limiter with automatic variable refresh rate optimization and real-time latency and display output analysis.Read 8 Oct 2026 · special-k.info
Framework
The official wiki describes Special K as a game modifying framework focused primarily on the graphics pipeline, with additional tools for input devices, windows, volume, and Steam functionality.Read 8 Oct 2026 · wiki.special-k.info
Game launchers
The bundled SKIF frontend supports Steam, Epic, Xbox, and GOG and can bypass Steam forced patching and Microsoft Store inconveniences.Read 8 Oct 2026 · special-k.info
Graphics overrides
It can override DirectStorage and DLSS settings, and add or override NVIDIA Reflex in supported games.Read 8 Oct 2026 · special-k.info
HDR
Features include HDR retrofit for OpenGL, Vulkan, Direct3D 11 and 12 games, plus HDR screenshot and tonemapping tools.Read 8 Oct 2026 · special-k.info
Image formats
The bundled SKIV image viewer supports JPEG-XR, JPEG-XL, AVIF, Radiance HDR, OpenEXR, UltraHDR and PNG for image workflows listed on the site.Read 8 Oct 2026 · special-k.info
Image viewer
The bundled portable SKIV image viewer supports HDR capture, tonemapping, analysis, and decoding, encoding, and transcoding several image formats.Read 8 Oct 2026 · special-k.info
Latency analysis
It provides real-time latency and display output analysis to validate and fix VRR issues.Read 8 Oct 2026 · special-k.info
Launcher integrations
The bundled SKIF launcher supports Steam, Epic, Xbox and GOG, and integrates with the ValvePlug project.Read 8 Oct 2026 · special-k.info
Linux support
The site says SKIV runs on Linux using Proton, except that it does not support JPEG-XR there.Read 8 Oct 2026 · special-k.info
Notable limitation
The site says the stable version may be a few months behind, and recommends trying experimental if an issue may have been changed there.Read 8 Oct 2026 · special-k.info
Release channels
Special K offers a stable release updated about every six months and an experimental version where new features and fixes arrive first.Read 8 Oct 2026 · special-k.info
Releases
The site offers stable and experimental versions; stable updates arrive about every six months, while experimental releases are available through Discord.Read 8 Oct 2026 · special-k.info
Source license
The Special K source code is licensed under GNU GPL v3.0 and is available on GitHub.Read 8 Oct 2026 · special-k.info
Use cases
The official wiki describes Special K as a game-modifying framework focused primarily on graphics, with tools for input devices, windows, volume, and Steam features.Read 8 Oct 2026 · wiki.special-k.info

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