diff --git a/src/amd/vulkan/layers/radv_quantic_dream.c b/src/amd/vulkan/layers/radv_quantic_dream.c
new file mode 100644
index 00000000000..f00a57742b5
--- /dev/null
+++ b/src/amd/vulkan/layers/radv_quantic_dream.c
@@ -0,0 +1,36 @@
+/*
+ * Copyright © 2024 Valve Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "radv_private.h"
+
+VKAPI_ATTR VkResult VKAPI_CALL
+quantic_dream_UnmapMemory2KHR(VkDevice _device, const VkMemoryUnmapInfoKHR *pMemoryUnmapInfo)
+{
+   /* Detroit: Become Human repeatedly calls vkMapMemory and vkUnmapMemory on the same buffer.
+    * This creates high overhead in the kernel due to mapping operation and page fault costs.
+    *
+    * Simply skip the unmap call to workaround it. Mapping an already-mapped region is UB in Vulkan,
+    * but will correctly return the mapped pointer on RADV.
+    */
+   return VK_SUCCESS;
+}
diff --git a/src/amd/vulkan/meson.build b/src/amd/vulkan/meson.build
index 09f8b9de066..7aa8501d3d1 100644
--- a/src/amd/vulkan/meson.build
+++ b/src/amd/vulkan/meson.build
@@ -36,6 +36,7 @@ radv_entrypoints_gen_command += [
   # Application layer entrypoints
   '--device-prefix', 'metro_exodus',
   '--device-prefix', 'rage2',
+  '--device-prefix', 'quantic_dream',
 ]
 
 radv_entrypoints = custom_target(
@@ -50,6 +51,7 @@ libradv_files = files(
   'bvh/bvh.h',
   'layers/radv_metro_exodus.c',
   'layers/radv_rage2.c',
+  'layers/radv_quantic_dream.c',
   'layers/radv_rmv_layer.c',
   'layers/radv_rra_layer.c',
   'layers/radv_sqtt_layer.c',
diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index e582c709ade..dd5ced88935 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -599,6 +599,8 @@ init_dispatch_tables(struct radv_device *device, struct radv_physical_device *ph
       add_entrypoints(&b, &metro_exodus_device_entrypoints, RADV_APP_DISPATCH_TABLE);
    } else if (!strcmp(physical_device->instance->app_layer, "rage2")) {
       add_entrypoints(&b, &rage2_device_entrypoints, RADV_APP_DISPATCH_TABLE);
+   } else if (!strcmp(physical_device->instance->app_layer, "quanticdream")) {
+      add_entrypoints(&b, &quantic_dream_device_entrypoints, RADV_APP_DISPATCH_TABLE);
    }
 
    if (physical_device->instance->vk.trace_mode & RADV_TRACE_MODE_RGP)
diff --git a/src/util/00-radv-defaults.conf b/src/util/00-radv-defaults.conf
index f71cfb887e8..d58c86c1909 100644
--- a/src/util/00-radv-defaults.conf
+++ b/src/util/00-radv-defaults.conf
@@ -56,6 +56,7 @@ Application bugs worked around in this file:
             <option name="radv_zero_vram" value="true" />
             <option name="radv_lower_discard_to_demote" value="true" />
             <option name="radv_disable_tc_compat_htile_general" value="true" />
+            <option name="radv_app_layer" value="quanticdream" />
         </engine>
 
         <engine engine_name_match="^UnrealEngine"> <!-- UE4/5 Vulkan RHI -->