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DXVK provides a Vulkan-based translation layer for DXGI, D3D10 and D3D11, which can be used on Linux with Wine.

Feature support

DXVK aims to provide support for D3D11, feature level 11_1, and D3D10, feature level 10_1.

Currently unsupported features:

D3D11: Shared Resources.
D3D11: Class linkage.
D3D11: Predication. Currently disabled due to implementation issues.
D3D11: Arbitrary sampler border colors, due to lack of Vulkan support for this feature.
D3D11.1: Target-independent rasterization (behaves incorrectly; no MSAA16x support).
D3D11.1: YUV and other multi-planar formats.
D3D11.2: Tiled resources (optional).
D3D11.3: Conservative Rasterization (optional).
D3D11.3: Rasterizer Ordered Views (optional).
D3D11.4: D3D12 interop.

In order to get the best results, the following steps are recommended:

Use an esync-enabled wine build, which dramatically reduces CPU overhead in some games. Lutris may offer such builds out of the box, and for Arch Linux, a PKGBUILD is available here. Set WINEESYNC=1 to enable esync.
Try setting WINEDEBUG=-all and DXVK_LOG_LEVEL=none in games that generate a lot of log messages.
Set the CPU frequency governor to performance or schedutil on AMD and older Intel CPUs.
Disable desktop effects on your compositor, as that can lead to severe stuttering issues when games are GPU-bound.

Up-to-date builds can be found here.