diff --git a/.gitmodules b/.gitmodules
index 2fb73aad..3628f250 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -19,3 +19,6 @@
 [submodule "FAudio"]
 	path = FAudio
 	url = https://github.com/FNA-XNA/FAudio/
+[submodule "d9vk"]
+	path = d9vk
+	url = https://github.com/ValveSoftware/dxvk/
diff --git a/README.md b/README.md
index 20fd531d..a98d5aa0 100644
--- a/README.md
+++ b/README.md
@@ -259,6 +259,7 @@ the Wine prefix. Removing the option will revert to the previous behavior.
 |                       | <tt>PROTON_DUMP_DEBUG_COMMANDS</tt> | When running a game, Proton will write some useful debug scripts for that game into `$PROTON_DEBUG_DIR/proton_$USER/`. |
 |                       | <tt>PROTON_DEBUG_DIR</tt>      | Root directory for the Proton debug scripts, `/tmp` by default. |
 | <tt>wined3d</tt>      | <tt>PROTON_USE_WINED3D</tt>    | Use OpenGL-based wined3d instead of Vulkan-based DXVK for d3d11 and d3d10. This used to be called `PROTON_USE_WINED3D11`, which is now an alias for this same option. |
+| <tt>d9vk</tt>         | <tt>PROTON_USE_D9VK</tt>       | Use Vulkan-based d9vk instead of OpenGL-based wined3d for d3d9. |
 | <tt>nod3d11</tt>      | <tt>PROTON_NO_D3D11</tt>       | Disable <tt>d3d11.dll</tt>, for d3d11 games which can fall back to and run better with d3d9. |
 | <tt>nod3d10</tt>      | <tt>PROTON_NO_D3D10</tt>       | Disable <tt>d3d10.dll</tt> and <tt>dxgi.dll</tt>, for d3d10 games which can fall back to and run better with d3d9. |
 | <tt>noesync</tt>      | <tt>PROTON_NO_ESYNC</tt>       | Do not use eventfd-based in-process synchronization primitives. |
diff --git a/build/makefile_base.mak b/build/makefile_base.mak
index c3388391..6f0bc91c 100644
--- a/build/makefile_base.mak
+++ b/build/makefile_base.mak
@@ -228,6 +228,10 @@ DXVK := $(SRCDIR)/dxvk
 DXVK_OBJ32 := ./obj-dxvk32
 DXVK_OBJ64 := ./obj-dxvk64
 
+D9VK := $(SRCDIR)/d9vk
+D9VK_OBJ32 := ./obj-d9vk32
+D9VK_OBJ64 := ./obj-d9vk64
+
 CMAKE := $(SRCDIR)/cmake
 CMAKE_OBJ32 := ./obj-cmake32
 CMAKE_OBJ64 := ./obj-cmake64
@@ -246,6 +250,7 @@ OBJ_DIRS := $(TOOLS_DIR32)        $(TOOLS_DIR64)        \
             $(WINE_OBJ32)         $(WINE_OBJ64)         \
             $(VRCLIENT_OBJ32)     $(VRCLIENT_OBJ64)     \
             $(DXVK_OBJ32)         $(DXVK_OBJ64)         \
+            $(D9VK_OBJ32)         $(D9VK_OBJ64)         \
             $(CMAKE_OBJ32)        $(CMAKE_OBJ64)
 
 $(OBJ_DIRS):
@@ -366,7 +371,7 @@ $(DIST_FONTS): fonts
 ALL_TARGETS += dist
 GOAL_TARGETS += dist
 
-dist: $(DIST_TARGETS) wine vrclient lsteamclient steam dxvk | $(DST_DIR)
+dist: $(DIST_TARGETS) wine vrclient lsteamclient steam dxvk d9vk | $(DST_DIR)
 	echo `date '+%s'` `GIT_DIR=$(abspath $(SRCDIR)/.git) git describe --tags` > $(DIST_VERSION)
 	cp $(DIST_VERSION) $(DST_BASE)/
 	rm -rf $(abspath $(DIST_PREFIX)) && \
@@ -1038,6 +1043,60 @@ dxvk32: $(DXVK_CONFIGURE_FILES32)
 	cp "$(DXVK_OBJ32)"/bin/d3d10core.dll "$(DST_DIR)"/lib/wine/dxvk/
 	if test -e $(SRCDIR)/.git; then ( cd $(SRCDIR) && git submodule status -- dxvk ) > "$(DST_DIR)"/lib/wine/dxvk/version; fi
 
+D9VK_CONFIGURE_FILES32 := $(D9VK_OBJ32)/build.ninja
+D9VK_CONFIGURE_FILES64 := $(D9VK_OBJ64)/build.ninja
+
+# 64bit-configure.  Remove coredata file if already configured (due to e.g. makefile changing)
+#   sed is used to sub in our special cross compiler
+$(D9VK_CONFIGURE_FILES64): $(MAKEFILE_DEP) $(D9VK)/build-win64.txt | $(D9VK_OBJ64)
+	if [ -e "$(abspath $(D9VK_OBJ64))"/build.ninja ]; then \
+		rm -f "$(abspath $(D9VK_OBJ64))"/meson-private/coredata.dat; \
+	fi
+	cd "$(abspath $(D9VK))" && \
+	sed -e "s|@PROTON_DXVK_CROSSCC_PREFIX@|$(subst ",\\\",$(DXVK_CROSSCC_PREFIX))|" < build-win64.txt > "$(abspath $(D9VK_OBJ64))/proton-build-win64.txt" && \
+	PATH="$(abspath $(SRCDIR))/glslang/bin/:$(PATH)" \
+		meson --prefix="$(abspath $(D9VK_OBJ64))" --cross-file "$(abspath $(D9VK_OBJ64))/proton-build-win64.txt" --strip --buildtype=release -Denable_dxgi=false -Denable_d3d10=false -Denable_d3d11=false "$(abspath $(D9VK_OBJ64))"
+
+# 32-bit configure.  Remove coredata file if already configured (due to e.g. makefile changing)
+#   sed is used to sub in our special cross compiler
+$(D9VK_CONFIGURE_FILES32): $(MAKEFILE_DEP) $(D9VK)/build-win32.txt | $(D9VK_OBJ32)
+	if [ -e "$(abspath $(D9VK_OBJ32))"/build.ninja ]; then \
+		rm -f "$(abspath $(D9VK_OBJ32))"/meson-private/coredata.dat; \
+	fi
+	cd "$(abspath $(D9VK))" && \
+	sed -e "s|@PROTON_DXVK_CROSSCC_PREFIX@|$(subst ",\\\",$(DXVK_CROSSCC_PREFIX))|" < build-win32.txt > "$(abspath $(D9VK_OBJ32))/proton-build-win32.txt" && \
+	PATH="$(abspath $(SRCDIR))/glslang/bin/:$(PATH)" \
+		meson --prefix="$(abspath $(D9VK_OBJ32))" --cross-file "$(abspath $(D9VK_OBJ32))/proton-build-win32.txt" --strip --buildtype=release -Denable_dxgi=false -Denable_d3d10=false -Denable_d3d11=false "$(abspath $(D9VK_OBJ32))"
+
+## d9vk goals
+D9VK_TARGETS = d9vk d9vk_configure d9vk32 d9vk64 d9vk_configure32 d9vk_configure64
+
+ALL_TARGETS += $(D9VK_TARGETS)
+GOAL_TARGETS_LIBS += d9vk
+
+.PHONY: $(D9VK_TARGETS)
+
+d9vk_configure: $(D9VK_CONFIGURE_FILES32) $(D9VK_CONFIGURE_FILES64)
+
+d9vk_configure64: $(D9VK_CONFIGURE_FILES64)
+
+d9vk_configure32: $(D9VK_CONFIGURE_FILES32)
+
+d9vk: d9vk32 d9vk64
+
+d9vk64: $(D9VK_CONFIGURE_FILES64)
+	env PATH="$(abspath $(SRCDIR))/glslang/bin/:$(PATH)" ninja -C "$(D9VK_OBJ64)" install
+	mkdir -p "$(DST_DIR)/lib64/wine/dxvk"
+	cp "$(D9VK_OBJ64)"/bin/d3d9.dll "$(DST_DIR)"/lib64/wine/dxvk
+	if test -e $(SRCDIR)/.git; then ( cd $(SRCDIR) && git submodule status -- d9vk ) > "$(DST_DIR)"/lib64/wine/dxvk/d9vk_version; fi
+
+
+d9vk32: $(D9VK_CONFIGURE_FILES32)
+	env PATH="$(abspath $(SRCDIR))/glslang/bin/:$(PATH)" ninja -C "$(D9VK_OBJ32)" install
+	mkdir -p "$(DST_DIR)"/lib/wine/dxvk
+	cp "$(D9VK_OBJ32)"/bin/d3d9.dll "$(DST_DIR)"/lib/wine/dxvk/
+	if test -e $(SRCDIR)/.git; then ( cd $(SRCDIR) && git submodule status -- d9vk ) > "$(DST_DIR)"/lib/wine/dxvk/d9vk_version; fi
+
 endif # NO_DXVK
 
 # TODO Tests
diff --git a/d9vk b/d9vk
new file mode 160000
index 00000000..10e386a0
--- /dev/null
+++ b/d9vk
@@ -0,0 +1 @@
+Subproject commit 10e386a0ffe13b85a1bb62ad96847b6409134469
diff --git a/proton b/proton
index 935c32e0..bc49cdd2 100755
--- a/proton
+++ b/proton
@@ -263,6 +263,7 @@ if "wined3d11" in config_opts:
 
 if not check_environment("PROTON_USE_WINED3D", "wined3d"):
     check_environment("PROTON_USE_WINED3D11", "wined3d")
+check_environment("PROTON_USE_D9VK", "d9vk")
 check_environment("PROTON_NO_D3D11", "nod3d11")
 check_environment("PROTON_NO_D3D10", "nod3d10")
 check_environment("PROTON_NO_ESYNC", "noesync")
@@ -440,7 +441,7 @@ with prefix_lock:
         except (ValueError, OSError):
             log("Unable to write VR config! " + str(sys.exc_info()[1]))
 
-    dxvkfiles = ("d3d11", "d3d10", "d3d10core", "d3d10_1", "dxgi")
+    dxvkfiles = ("d3d11", "d3d10", "d3d10core", "d3d10_1", "d3d9", "dxgi")
     def make_dxvk_links(dll_dir, link_dir):
         for f in dxvkfiles:
             dst = link_dir + "/" + f + ".dll"
@@ -462,7 +463,11 @@ with prefix_lock:
         make_dxvk_links(basedir + "/dist/lib/wine/dxvk/",
             prefix + "drive_c/windows/syswow64")
         for f in dxvkfiles:
-            dlloverrides[f] = "n"
+            if f == "d3d9":
+                if "d9vk" in config_opts:
+                    dlloverrides[f] = "n"
+            else:
+                dlloverrides[f] = "n"
 
 if "nod3d11" in config_opts:
     dlloverrides["d3d11"] = ""
diff --git a/user_settings.sample.py b/user_settings.sample.py
index 355704d1..58dc649e 100755
--- a/user_settings.sample.py
+++ b/user_settings.sample.py
@@ -21,6 +21,9 @@ user_settings = {
     #Use OpenGL-based wined3d for d3d11 and d3d10 instead of Vulkan-based DXVK
 #    "PROTON_USE_WINED3D": "1",
 
+    #Use Vulkan-based D9VK instead of OpenGL-based wined3d for d3d9.
+#    "PROTON_USE_D9VK": "1",
+
     #Disable d3d11 entirely
 #    "PROTON_NO_D3D11": "1",