diff --git a/include/vkd3d.h b/include/vkd3d.h
index 274ab301..7f94dd7e 100644
--- a/include/vkd3d.h
+++ b/include/vkd3d.h
@@ -76,6 +76,7 @@ enum vkd3d_config_flags
     VKD3D_CONFIG_FLAG_FORCE_HOST_CACHED = 0x00002000,
     VKD3D_CONFIG_FLAG_DXR11 = 0x00004000,
     VKD3D_CONFIG_FLAG_FORCE_NO_INVARIANT_POSITION = 0x00008000,
+    VKD3D_CONFIG_FLAG_ENABLE_EXPERIMENTAL_SHADER_MODEL = 0x00010000,
 };
 
 typedef HRESULT (*PFN_vkd3d_signal_event)(HANDLE event);
diff --git a/libs/vkd3d/device.c b/libs/vkd3d/device.c
index 4be50350..e05fe521 100644
--- a/libs/vkd3d/device.c
+++ b/libs/vkd3d/device.c
@@ -534,6 +534,7 @@ static const struct vkd3d_debug_option vkd3d_config_options[] =
     {"log_memory_budget", VKD3D_CONFIG_FLAG_LOG_MEMORY_BUDGET},
     {"force_host_cached", VKD3D_CONFIG_FLAG_FORCE_HOST_CACHED},
     {"no_invariant_position", VKD3D_CONFIG_FLAG_FORCE_NO_INVARIANT_POSITION},
+    {"experimental_shader_model", VKD3D_CONFIG_FLAG_ENABLE_EXPERIMENTAL_SHADER_MODEL},
 };
 
 static void vkd3d_config_flags_init_once(void)
@@ -5172,6 +5173,13 @@ static void d3d12_device_caps_init_shader_model(struct d3d12_device *device)
             device->d3d12_caps.max_shader_model = D3D_SHADER_MODEL_6_5;
             TRACE("Enabling support for SM 6.5.\n");
         }
+
+        if (device->d3d12_caps.max_shader_model == D3D_SHADER_MODEL_6_5 &&
+                (vkd3d_config_flags & VKD3D_CONFIG_FLAG_ENABLE_EXPERIMENTAL_SHADER_MODEL))
+        {
+            INFO("Enabling experimental support for SM 6.6.\n");
+            device->d3d12_caps.max_shader_model = D3D_SHADER_MODEL_6_6;
+        }
     }
     else
     {