diff --git a/gui-wm/gamescope/Manifest b/gui-wm/gamescope/Manifest
new file mode 100644
index 0000000..5216033
--- /dev/null
+++ b/gui-wm/gamescope/Manifest
@@ -0,0 +1,2 @@
+DIST gamescope-3.13.8.tar.gz 476534 BLAKE2B 33ecb51ec7e2d0f730a932c163387dad5a7194d152fe35700df3b311f886845de85fb218791a3af32f6ee7f77f8e4647bf5efc5dba2bf86b225f75972a827136 SHA512 392beb0587efb275ce02e91ddf88345ab1088c8e364b83ff4da8fb2d3884f2d7f13ccd6b695e16bfce1a48a5566fba0d1de4f9bb02140bd8d01ac2256afdeb2b
+DIST reshade-9fdbea6892f9959fdc18095d035976c574b268b7.tar.gz 1543894 BLAKE2B 5e2b643ffbbda3ad078deb075a6fada1d0a560c6d865b7febee6a8eaade83ec90db3c5a8f4130d27b6dfaa8ee7b899edd214c23c947678eed28fb8e7165d9bd2 SHA512 4565d094e1c2d53d5073b4976874665d38dcf7ca86e982e569cc76923eaa9187fa32a4385fc577a3a867d2917596e6377e5a023a34bc2d389ff899d5b69764fb
diff --git a/gui-wm/gamescope/gamescope-3.13.8.ebuild b/gui-wm/gamescope/gamescope-3.13.8.ebuild
new file mode 100644
index 0000000..15625aa
--- /dev/null
+++ b/gui-wm/gamescope/gamescope-3.13.8.ebuild
@@ -0,0 +1,94 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit fcaps meson
+
+RESHADE_COMMIT="9fdbea6892f9959fdc18095d035976c574b268b7"
+MY_PV=$(ver_rs 3 -)
+MY_PV="${MY_PV//_/-}"
+
+DESCRIPTION="Efficient micro-compositor for running games"
+HOMEPAGE="https://github.com/ValveSoftware/gamescope"
+SRC_URI="https://github.com/ValveSoftware/${PN}/archive/refs/tags/${MY_PV}.tar.gz -> ${P}.tar.gz
+	https://github.com/Joshua-Ashton/reshade/archive/${RESHADE_COMMIT}.tar.gz -> reshade-${RESHADE_COMMIT}.tar.gz"
+KEYWORDS="~amd64"
+LICENSE="BSD-2"
+SLOT="0"
+IUSE="pipewire +wsi-layer"
+
+RDEPEND="
+	=dev-libs/libliftoff-0.4*
+	>=dev-libs/wayland-1.21
+	>=dev-libs/wayland-protocols-1.17
+	=gui-libs/wlroots-0.16*[X,libinput(+)]
+	>=media-libs/libdisplay-info-0.1.1
+	media-libs/libsdl2[video,vulkan]
+	media-libs/vulkan-loader
+	sys-apps/hwdata
+	sys-libs/libcap
+	>=x11-libs/libdrm-2.4.109
+	x11-libs/libX11
+	x11-libs/libXcomposite
+	x11-libs/libXdamage
+	x11-libs/libXext
+	x11-libs/libXfixes
+	x11-libs/libxkbcommon
+	x11-libs/libXmu
+	x11-libs/libXrender
+	x11-libs/libXres
+	x11-libs/libXtst
+	x11-libs/libXxf86vm
+	pipewire? ( >=media-video/pipewire-0.3:= )
+	wsi-layer? ( x11-libs/libxcb )
+"
+DEPEND="
+	${RDEPEND}
+	dev-libs/stb
+	dev-util/vulkan-headers
+	media-libs/glm
+	dev-util/spirv-headers
+	wsi-layer? ( >=media-libs/vkroots-0_p20231108 )
+"
+BDEPEND="
+	dev-util/glslang
+	dev-util/wayland-scanner
+	virtual/pkgconfig
+"
+
+S="${WORKDIR}/${PN}-${MY_PV}"
+
+FILECAPS=(
+	cap_sys_nice usr/bin/${PN}
+)
+
+src_prepare() {
+	default
+
+	# Normally wraps stb with Meson. Upstream does not ship a pkg-config file so
+	# we don't install one. Work around this using symlinks.
+	mkdir subprojects/stb || die
+	ln -sn "${ESYSROOT}"/usr/include/stb/* "${S}"/subprojects/packagefiles/stb/* subprojects/stb/ || die
+
+	# ReShade is bundled as a git submodule, but it references an unofficial
+	# fork, so we cannot unbundle it. Symlink to its extracted sources.
+	rmdir src/reshade || die
+	ln -snfT ../../reshade-${RESHADE_COMMIT} src/reshade || die
+
+	# SPIRV-Headers is required by ReShade. It is bundled as a git submodule but
+	# not wrapped with Meson, so we can symlink to our system-wide headers.
+	mkdir thirdparty/SPIRV-Headers/include || die
+	ln -snf "${ESYSROOT}"/usr/include/spirv thirdparty/SPIRV-Headers/include/ || die
+}
+
+src_configure() {
+	local emesonargs=(
+		--force-fallback-for=
+		-Dbenchmark=disabled
+		-Denable_openvr_support=false
+		$(meson_feature pipewire)
+		$(meson_use wsi-layer enable_gamescope_wsi_layer)
+	)
+	meson_src_configure
+}
diff --git a/gui-wm/gamescope/metadata.xml b/gui-wm/gamescope/metadata.xml
new file mode 100644
index 0000000..cc17110
--- /dev/null
+++ b/gui-wm/gamescope/metadata.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM 'https://www.gentoo.org/dtd/metadata.dtd'>
+<pkgmetadata>
+	<maintainer type="person">
+		<email>chewi@gentoo.org</email>
+		<name>James Le Cuirot</name>
+	</maintainer>
+	<upstream>
+		<remote-id type="github">ValveSoftware/gamescope</remote-id>
+	</upstream>
+	<use>
+		<flag name="pipewire">Enable screen capture via PipeWire</flag>
+		<flag name="wsi-layer">Enable the WSI layer (required for HDR)</flag>
+	</use>
+</pkgmetadata>