diff --git a/games-engines/ioquake3/Manifest b/games-engines/ioquake3/Manifest
new file mode 100644
index 0000000..a4f7c3a
--- /dev/null
+++ b/games-engines/ioquake3/Manifest
@@ -0,0 +1 @@
+DIST ioquake3-1.36.20200125.tar.gz 7680734 BLAKE2B 7754d8f20f94e8657e0499bfc8201837f20c273518b21ca04b14c3d5253115254dc4bb5215ba2723028f74831cc0caf2c00eeeb1821a9d3dc74f39940f620d2d SHA512 09e93515b39d25f26b343eef4462a9759282ab1f27476b9144d5e11d4cc2f4253ea9f72c38b41458aac721c645778c9201d19d67857355ee3c0b20ae445f9c7d
diff --git a/games-engines/ioquake3/ioquake3-1.36.20200125.ebuild b/games-engines/ioquake3/ioquake3-1.36.20200125.ebuild
new file mode 100644
index 0000000..bbc3859
--- /dev/null
+++ b/games-engines/ioquake3/ioquake3-1.36.20200125.ebuild
@@ -0,0 +1,71 @@
+# Copyright 2026 Shin'ya Minazuki
+EAPI=8
+
+inherit toolchain-funcs
+
+DESCRIPTION="Community effort to maintain and improve the id Tech 3 engine"
+HOMEPAGE="https://www.ioquake3.org/"
+SRC_URI="https://distfiles.chaotic.ninja/pub/${PN}/${P}.tar.gz"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~amd64"
+
+DEPEND="
+	curl? ( net-misc/curl )
+	freetype? ( media-libs/freetype )
+	ogg? (
+		media-libs/libogg
+		media-libs/libvorbis
+	)
+	openal? ( media-libs/openal )
+	opus? (
+		media-libs/libopus
+		media-libs/opusfile
+	)
+	media-libs/libjpeg-turbo
+	media-libs/libsdl2
+	sys-libs/zlib
+"
+RDEPEND="${DEPEND}"
+BDEPEND="
+	app-alternatives/yacc
+	virtual/pkgconfig
+"
+
+IUSE="+client curl freetype ogg openal opus +server"
+
+src_configure() {
+	elog "Creating Makefile.local..."
+	echo "B=${S}/build" >> Makefile.local
+	echo "BD=${S}/build" >> Makefile.local
+	echo "BR=${S}/build" >> Makefile.local
+	echo "BUILD_AUTOUPDATER=0" >> Makefile.local
+	echo "BUILD_CLIENT=$(usex client 1 0)" >> Makefile.local
+	echo "BUILD_MISSIONPACK=1" >> Makefile.local
+	echo "BUILD_SERVER=$(usex server 1 0)" >> Makefile.local
+	echo "CC=$(tc-getCC)" >> Makefile.local
+	echo "PKG_CONFIG=$(tc-getPKG_CONFIG)" >> Makefile.local
+	echo "USE_CURL=$(usex curl 1 0)" >> Makefile.local
+	echo "USE_CODEC_VORBIS=$(usex ogg 1 0)" >> Makefile.local
+	echo "USE_CODEC_OPUS=$(usex opus 1 0)" >> Makefile.local
+	echo "USE_FREETYPE=$(usex freetype 1 0)" >> Makefile.local
+	echo "USE_OPENAL=$(usex openal 1 0)" >> Makefile.local
+	echo "USE_INTERNAL_LIBS=0" >> Makefile.local
+	echo "USE_VOIP=0" >> Makefile.local
+	echo "USE_YACC=1" >> Makefile.local
+	echo "COPYDIR=${EPREFIX}/usr/$(get_libdir)/${PN}" >> Makefile.local
+}
+
+src_compile() {
+	emake
+}
+
+src_install() {
+	emake DESTDIR="${D}" install
+}
+pkg_postinst() {
+	elog "In order to play Quake III Arena, get the data files first"
+	elog "How to get them will not be covered here, that's on you"
+	elog "Then place it somewhere readable to the client executable"
+}
diff --git a/games-engines/ioquake3/metadata.xml b/games-engines/ioquake3/metadata.xml
new file mode 100644
index 0000000..d55a9eb
--- /dev/null
+++ b/games-engines/ioquake3/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>shinyoukai@laidback.moe</email>
+		<name>Shin'ya Minazuki</name>
+	</maintainer>
+	<use>
+		<flag name="client">Build the client binary (ioquake3)</flag>
+		<flag name="server">Build the server binary (ioq3ded)</flag>
+	</use>
+	<upstream>
+		<remote-id type="github">ioquake3/ioq3</remote-id>
+	</upstream>
+</pkgmetadata>