diff --git a/include/vkd3d_shader.h b/include/vkd3d_shader.h
index 4a14846861..ba1ed8808a 100644
--- a/include/vkd3d_shader.h
+++ b/include/vkd3d_shader.h
@@ -462,7 +462,11 @@ enum vkd3d_shader_quirk
 
     /* Works around cases where app is relying on coherency between threads in a workgroup,
      * but forgets to use Device memory barriers properly. */
-    VKD3D_SHADER_QUIRK_FORCE_DEVICE_MEMORY_BARRIER_THREAD_GROUP_COHERENCY = (1 << 21)
+    VKD3D_SHADER_QUIRK_FORCE_DEVICE_MEMORY_BARRIER_THREAD_GROUP_COHERENCY = (1 << 21),
+
+    /* Extremely specific workaround for cubemap importance sampling pass.
+     * The lowest res mips may contain garbage. */
+    VKD3D_SHADER_QUIRK_ASSUME_BROKEN_SUB_8x8_CUBE_MIPS = (1 << 22)
 };
 
 struct vkd3d_shader_quirk_hash
diff --git a/libs/vkd3d-shader/dxil.c b/libs/vkd3d-shader/dxil.c
index c14ff4f7e3..df6c45fe0e 100644
--- a/libs/vkd3d-shader/dxil.c
+++ b/libs/vkd3d-shader/dxil.c
@@ -1116,6 +1116,20 @@ int vkd3d_shader_compile_dxil(const struct vkd3d_shader_code *dxbc,
         }
     }
 
+    if (quirks & VKD3D_SHADER_QUIRK_ASSUME_BROKEN_SUB_8x8_CUBE_MIPS)
+    {
+        const dxil_spv_option_shader_quirk helper =
+                { { DXIL_SPV_OPTION_SHADER_QUIRK },
+                    DXIL_SPV_SHADER_QUIRK_ASSUME_BROKEN_SUB_8x8_CUBE_MIPS };
+
+        if (dxil_spv_converter_add_option(converter, &helper.base) != DXIL_SPV_SUCCESS)
+        {
+            ERR("dxil-spirv does not support SHADER_QUIRK.\n");
+            ret = VKD3D_ERROR_NOT_IMPLEMENTED;
+            goto end;
+        }
+    }
+
     remap_userdata.shader_interface_info = shader_interface_info;
     remap_userdata.shader_interface_local_info = NULL;
     remap_userdata.num_root_descriptors = num_root_descriptors;
@@ -1618,6 +1632,20 @@ int vkd3d_shader_compile_dxil_export(const struct vkd3d_shader_code *dxil,
         }
     }
 
+    if (quirks & VKD3D_SHADER_QUIRK_ASSUME_BROKEN_SUB_8x8_CUBE_MIPS)
+    {
+        const dxil_spv_option_shader_quirk helper =
+                { { DXIL_SPV_OPTION_SHADER_QUIRK },
+                    DXIL_SPV_SHADER_QUIRK_ASSUME_BROKEN_SUB_8x8_CUBE_MIPS };
+
+        if (dxil_spv_converter_add_option(converter, &helper.base) != DXIL_SPV_SUCCESS)
+        {
+            ERR("dxil-spirv does not support SHADER_QUIRK.\n");
+            ret = VKD3D_ERROR_NOT_IMPLEMENTED;
+            goto end;
+        }
+    }
+
     if (compiler_args)
     {
         for (i = 0; i < compiler_args->target_extension_count; i++)
diff --git a/libs/vkd3d/device.c b/libs/vkd3d/device.c
index 167f126a92..3ca4eed4b8 100644
--- a/libs/vkd3d/device.c
+++ b/libs/vkd3d/device.c
@@ -739,6 +739,17 @@ static const struct vkd3d_shader_quirk_info veilguard_quirks = {
     NULL, 0, VKD3D_SHADER_QUIRK_FORCE_DEVICE_MEMORY_BARRIER_THREAD_GROUP_COHERENCY,
 };
 
+static const struct vkd3d_shader_quirk_hash tfd_hashes[] = {
+    /* ReflectionCaptureFilteredImportanceSamplingCS is somewhat broken as it assumes
+     * that the lowest res mips are valid, but they are never written to by ReflectionCaptureGenerateMipmapCS.
+     * It stops at 8x8 (the workgroup size). The workaround just clamps the explicit LOD to whatever mips is 8x8. */
+    { 0x74b8eaf23e3d166c, VKD3D_SHADER_QUIRK_ASSUME_BROKEN_SUB_8x8_CUBE_MIPS },
+};
+
+static const struct vkd3d_shader_quirk_info tfd_quirks = {
+    tfd_hashes, ARRAY_SIZE(tfd_hashes), 0,
+};
+
 static const struct vkd3d_shader_quirk_meta application_shader_quirks[] = {
     /* F1 2020 (1080110) */
     { VKD3D_STRING_COMPARE_EXACT, "F1_2020_dx12.exe", &f1_2019_2020_quirks },
@@ -769,6 +780,8 @@ static const struct vkd3d_shader_quirk_meta application_shader_quirks[] = {
     { VKD3D_STRING_COMPARE_EXACT, "HuntGame.exe", &hunt_quirks },
     /* Dragon Age: The Veilguard (1845910) */
     { VKD3D_STRING_COMPARE_EXACT, "Dragon Age The Veilguard.exe", &veilguard_quirks },
+    /* The First Descendant (2074920) */
+    { VKD3D_STRING_COMPARE_EXACT, "M1-Win64-Shipping.exe", &tfd_quirks },
     /* Unreal Engine 4 */
     { VKD3D_STRING_COMPARE_ENDS_WITH, "-Shipping.exe", &ue4_quirks },
     /* MSVC fails to compile empty array. */