diff --git a/games-fps/unreal-tournament-data/Manifest b/games-fps/unreal-tournament-data/Manifest
new file mode 100644
index 0000000000000..373676636f4cb
--- /dev/null
+++ b/games-fps/unreal-tournament-data/Manifest
@@ -0,0 +1,6 @@
+DIST UT_GOTY_CD1.iso 649633792 BLAKE2B f4054aaf30a90c1992d4592f43a199512da21cf8072a523a78d30dadeb669285001b86aa0d9475e1d687a3ee5afa957a250312d1abe8543d348faea5d57ed6e1 SHA512 a3b0bab60c1e76034ec2f3e3069ddddc56ec5992f0b6419053faa5a72f0518f7349fc1ef2428ec775982f771e45853d37cfffe8f66f330549a83448a7c03ee3a
+DIST setup_ut_goty_2.0.0.5.exe 316872152 BLAKE2B 5f83fa23d0a16888702e4db22c717e904e5836e8def35603115e3561e4bc506224172671ae20d5ab4c448f7f237f3c1a4f755fc30f0e4ebb4fbaa484d6dd9ac9 SHA512 228e8b553826d7eaaf2dcacd20675f1d1921337139d61f00e273fc668beeafad451be92a685a6ce73b83bed6379cb8d9bdc95336ae967239b241485c4b4bc1d5
+DIST utbonuspack-zip.zip 13732267 BLAKE2B 7991e6273b4484b422f685a5eda97660ebd5147bbb6d0a5faedb2ef4c07b5cb554c12041f66e53f827479095983afc81a7da631589a77f5fa2b3764630634aeb SHA512 54dd43e082a1ea81631a3c540331efcbc753d687e9c35543cc60cbc27515e92fca81aaf538862eefab1d08556d7bdde458495ce4c6bc8c9c6fce2a2df3ab1131
+DIST utbonuspack2.zip 1594762 BLAKE2B b758f092179e556fed0b6cb3a3931dea10cd81536c27fff25cd2ed02f9e4a0006af1b693a571b54060a6611f94511bb4b4703fd22f69c8989c0b2ba27933182e SHA512 3e7d5961628cb9aadcd044f5b3608186b34d7d5784a96be2d12cd982ac5f1b52404ea8dfc40f16b3324868479f410cce483816056039252d1740fab277eebc87
+DIST utbonuspack3-zip.zip 4799960 BLAKE2B e0dc1b6716d4f89f27cba5efdc12a3a4d014c5fdc8cdc9087cf229e04b23e42f380643979fc5a9c85e9f90586c28d1e44e9efe395b2a6653e508924708e025e0 SHA512 6b7b58aee9148b3a8a2eb65f5753c98c962a79e362f88fcd44e037b8fbb2deadbfb85036d4141dc30fc3bcb3c9ed8e7f84fc5215ac8427b4b1d4d6165ec6ee6d
+DIST utbonuspack4-zip.7z 11268844 BLAKE2B 73ab0fa5e6656b371997e449bc3577f48d1bd84343aba9c332f2dda0a92bf36f766943e176a596758160311b5cc3b8e94db2fc938360d954268d19a416506357 SHA512 8ec6f4da1e567665750087bdc27f2284ce7e9c8a698cc0114a5e9663f73810c42bf6010d174232f6c80e16bcfe51090e2a21764f9a0ce75e437ae758d2335c5f
diff --git a/games-fps/unreal-tournament-data/files/listings/Help b/games-fps/unreal-tournament-data/files/listings/Help
new file mode 100644
index 0000000000000..3e823d97f19b4
--- /dev/null
+++ b/games-fps/unreal-tournament-data/files/listings/Help
@@ -0,0 +1,7 @@
+BonusPackReadme.txt
+BP4Readme.txt
+Logo.bmp
+ReadMe.htm
+Unreal.ico
+UnrealTournamentLogo.bmp
+UnrealTournamentSetupLogo.bmp
diff --git a/games-fps/unreal-tournament-data/files/listings/Maps b/games-fps/unreal-tournament-data/files/listings/Maps
new file mode 100644
index 0000000000000..e376f1a219b74
--- /dev/null
+++ b/games-fps/unreal-tournament-data/files/listings/Maps
@@ -0,0 +1,95 @@
+AS-Frigate.unr
+AS-Guardia.unr
+AS-HiSpeed.unr
+AS-Mazon.unr
+AS-OceanFloor.unr
+AS-Overlord.unr
+AS-Rook.unr
+AS-Tutorial.unr
+CityIntro.unr
+CTF-Beatitude.unr
+CTF-Command.unr
+CTF-Coret.unr
+CTF-Cybrosis][.unr
+CTF-Darji16.unr
+CTF-Dreary.unr
+CTF-EpicBoy.unr
+CTF-EternalCave.unr
+CTF-Face-SE.unr
+CTF-Face.unr
+CTF-Face][.unr
+CTF-Gauntlet.unr
+CTF-HallOfGiants.unr
+CTF-High.unr
+CTF-Hydro16.unr
+CTF-Kosov.unr
+CTF-LavaGiant.unr
+CTF-Niven.unr
+CTF-November.unr
+CTF-Noxion16.unr
+CTF-Nucleus.unr
+CTF-Orbital.unr
+CTF-Ratchet.unr
+CTF-Tutorial.unr
+DM-Agony.unr
+DM-ArcaneTemple.unr
+DM-Barricade.unr
+DM-Bishop.unr
+DM-Closer.unr
+DM-Codex.unr
+DM-Conveyor.unr
+DM-Crane.unr
+DM-Curse][.unr
+DM-Cybrosis][.unr
+DM-Deck16][.unr
+DM-Fetid.unr
+DM-Fractal.unr
+DM-Gothic.unr
+DM-Grinder.unr
+DM-Grit-TOURNEY.unr
+DM-HealPod][.unr
+DM-HyperBlast.unr
+DM-KGalleon.unr
+DM-Liandri.unr
+DM-Malevolence.unr
+DM-Mojo][.unr
+DM-Morbias][.unr
+DM-Morpheus.unr
+DM-Oblivion.unr
+DM-Peak.unr
+DM-Phobos.unr
+DM-Pressure.unr
+DM-Pyramid.unr
+DM-Shrapnel][.unr
+DM-SpaceNoxx.unr
+DM-Stalwart.unr
+DM-StalwartXL.unr
+DM-Tempest.unr
+DM-Turbine.unr
+DM-Tutorial.unr
+DM-Viridian-TOURNEY.unr
+DM-Zeto.unr
+DOM-Bullet.unr
+DOM-Cidom.unr
+DOM-Cinder.unr
+DOM-Condemned.unr
+DOM-Cryptic.unr
+DOM-Gearbolt.unr
+DOM-Ghardhen.unr
+DOM-Lament.unr
+DOM-Lament][.unr
+DOM-Leadworks.unr
+DOM-MetalDream.unr
+DOM-Olden.unr
+DOM-Sesmar.unr
+DOM-Tutorial.unr
+DOM-WolfsBay.unr
+Entry.unr
+EOL_Assault.unr
+EOL_Challenge.unr
+EOL_CTF.unr
+EOL_Deathmatch.unr
+EOL_Domination.unr
+EOL_Statues.unr
+UTCredits.unr
+UT-Logo-Map.unr
diff --git a/games-fps/unreal-tournament-data/files/listings/Music b/games-fps/unreal-tournament-data/files/listings/Music
new file mode 100644
index 0000000000000..9c40fbaff216c
--- /dev/null
+++ b/games-fps/unreal-tournament-data/files/listings/Music
@@ -0,0 +1,30 @@
+Botmca9.umx
+Botpck10.umx
+Cannon.umx
+Colossus.umx
+Course.umx
+Credits.umx
+Ending.umx
+Enigma.umx
+firebr.umx
+Foregone.umx
+Godown.umx
+Lock.umx
+Mech8.umx
+Mission.umx
+Nether.umx
+Organic.umx
+Phantom.umx
+Razor-ub.umx
+Run.umx
+Savemeg.umx
+SaveMe.umx
+Seeker2.umx
+Seeker.umx
+Skyward.umx
+Strider.umx
+Suprfist.umx
+UnWorld2.umx
+utmenu23.umx
+Uttitle.umx
+Wheels.umx
diff --git a/games-fps/unreal-tournament-data/files/listings/Sounds b/games-fps/unreal-tournament-data/files/listings/Sounds
new file mode 100644
index 0000000000000..c2cdb388c72c0
--- /dev/null
+++ b/games-fps/unreal-tournament-data/files/listings/Sounds
@@ -0,0 +1,29 @@
+Activates.uax
+Addon1.uax
+AmbAncient.uax
+AmbCity.uax
+AmbModern.uax
+AmbOutside.uax
+Announcer.uax
+BossVoice.uax
+DDay.uax
+DMatch.uax
+DoorsAnc.uax
+DoorsMod.uax
+Extro.uax
+Female1Voice.uax
+Female2Voice.uax
+FemaleSounds.uax
+LadderSounds.uax
+Male1Voice.uax
+Male2Voice.uax
+MaleSounds.uax
+noxxsnd.uax
+openingwave.uax
+Pan1.uax
+rain.uax
+TutVoiceAS.uax
+TutVoiceCTF.uax
+TutVoiceDM.uax
+TutVoiceDOM.uax
+VRikers.uax
diff --git a/games-fps/unreal-tournament-data/files/listings/System b/games-fps/unreal-tournament-data/files/listings/System
new file mode 100644
index 0000000000000..5d53264b2d35a
--- /dev/null
+++ b/games-fps/unreal-tournament-data/files/listings/System
@@ -0,0 +1,3 @@
+BotPack.u
+Manifest.ini
+OpenGlDrv.ini
diff --git a/games-fps/unreal-tournament-data/files/listings/Textures b/games-fps/unreal-tournament-data/files/listings/Textures
new file mode 100644
index 0000000000000..55706ed32c713
--- /dev/null
+++ b/games-fps/unreal-tournament-data/files/listings/Textures
@@ -0,0 +1,110 @@
+AlfaFX.utx
+Ancient.utx
+ArenaTex.utx
+Belt_fx.utx
+BluffFX.utx
+BossSkins.utx
+castle1.utx
+ChizraEFX.utx
+city.utx
+commandoskins.utx
+Coret_FX.utx
+Creative.utx
+credits.utx
+Crypt2.utx
+Crypt_FX.utx
+Crypt.utx
+CTF.utx
+DacomaFem.utx
+DacomaSkins.utx
+DDayFX.utx
+DecayedS.utx
+Detail.utx
+DMeffects.utx
+EgyptPan.utx
+Egypt.utx
+eol.utx
+Faces.utx
+Factory.utx
+FCommandoSkins.utx
+Female1Skins.utx
+Female2Skins.utx
+FireEng.utx
+FlareFX.utx
+FractalFX.utx
+GenEarth.utx
+GenFluid.utx
+GenFX.utx
+GenIn.utx
+GenTerra.utx
+GenWarp.utx
+GothFem.utx
+GothSkins.utx
+GreatFire2.utx
+GreatFire.utx
+HubEffects.utx
+Indus1.utx
+Indus2.utx
+Indus3.utx
+Indus4.utx
+Indus5.utx
+Indus6.utx
+Indus7.utx
+ISVFX.utx
+JWSky.utx
+LadrArrow.utx
+LadrStatic.utx
+LavaFX.utx
+Lian-X.utx
+Liquids.utx
+Logo.utx
+Male1Skins.utx
+Male2Skins.utx
+Male3Skins.utx
+MenuGr.utx
+Metalmys.utx
+Mine.utx
+NaliCast.utx
+NaliFX.utx
+NivenFX.utx
+noxxpack.utx
+of1.utx
+Old_FX.utx
+Palettes.utx
+PhraelFx.utx
+PlayrShp.utx
+Queen.utx
+RainFX.utx
+Render.utx
+RotatingU.utx
+Scripted.utx
+SGirlSkins.utx
+SGTech1.utx
+ShaneChurch.utx
+ShaneDay.utx
+ShaneSky.utx
+Skaarj.utx
+SkTrooperSkins.utx
+SkyBox.utx
+SkyCity.utx
+Slums.utx
+Soldierskins.utx
+SpaceFX.utx
+Starship.utx
+tcowmeshskins.utx
+TCrystal.utx
+Terranius.utx
+tnalimeshskins.utx
+TrenchesFX.utx
+tskmskins.utx
+UT_ArtFX.utx
+UTbase1.utx
+UTcrypt.utx
+UTtech1.utx
+UTtech2.utx
+UTtech3.utx
+UT.utx
+XbpFX.utx
+XFX.utx
+Xtortion.utx
+xutfx.utx
diff --git a/games-fps/unreal-tournament-data/metadata.xml b/games-fps/unreal-tournament-data/metadata.xml
new file mode 100644
index 0000000000000..f33f842ae33f2
--- /dev/null
+++ b/games-fps/unreal-tournament-data/metadata.xml
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="project">
+		<email>games@gentoo.org</email>
+		<name>Gentoo Games Project</name>
+	</maintainer>
+	<use>
+		<flag name="gog">Install from the GOG.com release. Note that the game is no longer sold here.</flag>
+		<flag name="bonuspacks">Download Bonus Packs 1 to 3. Mandatory if installing from the original non-GOTY Edition CD.</flag>
+	</use>
+	<longdescription>
+		This package installs just the data files, not the engine, for Epic's
+		popular first-person shooter game, Unreal Tournament (99).
+
+		Epic privately shared the engine sources with the community OldUnreal
+		team, who now maintain it and publish modern builds. Epic also, somewhat
+		informally, gave permission for OldUnreal to host a CD ISO of the game
+		for the community to download and play for free.
+
+		GamingOnLinux shared this news and confirmed it with Epic here:
+		https://www.gamingonlinux.com/2024/11/classic-unreal-tournament-and-unreal-now-easier-to-download-free-thanks-to-oldunreal/
+
+			"We can confirm that Unreal 1 and Unreal Tournament are available on
+			archive.org and people are free to independently link to and play
+			these versions."
+
+		Epic's web page for Unreal Tournament links to OldUnreal for downloads:
+		https://www.epicgames.com/unrealtournament
+
+		By default, this package will fetch that ISO from OldUnreal. If you do
+		not want to use OldUnreal's ISO, you also have the option to install
+		from CD, DVD, or GOG instead. Note that the game can no longer be
+		purchased from GOG or anywhere else. Epic even removed it from their own
+		store. Also note that the GOG edition lacks the French, German, Italian,
+		and Spanish sound files.
+
+		If you are installing from the original non Game of the Year Edition CD,
+		which lacks Bonus Packs 1 to 3, you must enable the bonuspacks USE flag
+		to download them. Bonus Pack 4 is downloaded unconditionally.
+	</longdescription>
+</pkgmetadata>
diff --git a/games-fps/unreal-tournament-data/unreal-tournament-data-436_p4.ebuild b/games-fps/unreal-tournament-data/unreal-tournament-data-436_p4.ebuild
new file mode 100644
index 0000000000000..c8c2fd21891c7
--- /dev/null
+++ b/games-fps/unreal-tournament-data/unreal-tournament-data-436_p4.ebuild
@@ -0,0 +1,209 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+CDROM_OPTIONAL="yes"
+inherit cdrom check-reqs multiprocessing
+
+DESCRIPTION="Data files for Unreal Tournament (99)"
+HOMEPAGE="https://liandri.beyondunreal.com/Unreal_Tournament"
+GOG="setup_ut_goty_2.0.0.5.exe"
+SRC_URI="
+	fetch+https://files.oldunreal.net/utbonuspack4-zip.7z
+	!cdinstall? ( !gog? ( fetch+https://files.oldunreal.net/UT_GOTY_CD1.ISO -> UT_GOTY_CD1.iso ) )
+	gog? ( ${GOG} )
+	bonuspacks? (
+		fetch+https://unreal-archive-files-na.s3.ca-east-tor.io.cloud.ovh.net/managed/Unreal%20Tournament/patches-updates/bonus-packs/utbonuspack-zip.zip
+		fetch+https://unreal-archive-files-na.s3.ca-east-tor.io.cloud.ovh.net/managed/Unreal%20Tournament/patches-updates/bonus-packs/utbonuspack2.zip
+		fetch+https://unreal-archive-files-na.s3.ca-east-tor.io.cloud.ovh.net/managed/Unreal%20Tournament/patches-updates/bonus-packs/utbonuspack3-zip.zip
+	)
+"
+S="${WORKDIR}"
+
+LICENSE="Epic-TOS" # See metadata.xml for the legal background.
+SLOT="0"
+KEYWORDS="~amd64 ~arm64 ~x86"
+IUSE="bonuspacks doc gog l10n_es l10n_fr l10n_it"
+RESTRICT="bindist gog? ( fetch ) mirror"
+REQUIRED_USE="
+	?? ( cdinstall gog )
+	!cdinstall? ( !bonuspacks )
+"
+
+UT_DEPEND=">=games-fps/unreal-tournament-469e"
+
+BDEPEND="
+	${UT_DEPEND}
+	app-arch/libarchive
+	cdinstall? ( app-arch/unshield )
+	gog? ( app-arch/innoextract )
+"
+RDEPEND="
+	${UT_DEPEND}
+"
+
+# Assuming the OldUnreal ISO.
+CHECKREQS_DISK_BUILD="2G"
+
+pkg_nofetch() {
+	einfo "Please download ${GOG} from GOG and move it"
+	einfo "to your distfiles directory. Note that you can no longer buy this"
+	einfo "game from GOG, so disable USE=\"gog\" to use OldUnreal's free ISO if"
+	einfo "you don't already own the game."
+}
+
+locale_mismatch() {
+	case "${1}" in
+		*.est|*.est_*|3_UnrealTournament_*_Spanish) ! use l10n_es ;;
+		*.frt|*.frt_*|3_UnrealTournament_*_French)  ! use l10n_fr ;;
+		*.itt|*.itt_*|3_UnrealTournament_*_Italian) ! use l10n_it ;;
+		*) return 1 ;;
+	esac
+}
+
+src_unpack() {
+	if use gog; then
+		if use l10n_es || use l10n_fr || use l10n_it; then
+			ewarn "The GOG edition lacks localised audio. Please disable USE=\"gog\" if you"
+			ewarn "would prefer to use a free game download that does include this content."
+			echo
+		fi
+
+		ln -s . app || die
+		innoextract --extract --include app "${DISTDIR}/${GOG}" || die
+	else
+		if use cdinstall; then
+			ewarn "It is no longer necessary to install this from CD or DVD. Please"
+			ewarn "disable USE=\"cdinstall\" if you would prefer to download the game for"
+			ewarn "free."
+			echo
+		else
+			# We might as well handle a downloaded ISO and a user-provided ISO
+			# the same way through cdrom.eclass.
+			CD_ROOT="${DISTDIR}/UT_GOTY_CD1.iso"
+		fi
+
+		# The German Midway DVD doesn't include UT99.
+		cdrom_get_cds Manuals/UnrealTournament_English.pdf:Maps/DM-SpaceNoxx.unr.uz:Maps/DM-Pressure.unr
+
+		case ${CDROM_SET} in
+			0) einfo "Found Midway Unreal Anthology DVD" ;;
+			1) einfo "Found Unreal Tournament Game of the Year Edition CD" ;;
+			2) einfo "Found Unreal Tournament original CD" ;;
+		esac
+
+		case ${CDROM_SET} in
+			2)
+				if ! use bonuspacks; then
+					die "Your installation source lacks Bonus Packs 1 to 3. Please enable USE=\"bonuspacks\" to download them."
+				fi ;;
+			*)
+				if use bonuspacks; then
+					ewarn "Enabling USE=\"bonuspacks\" just downloads unnecessary files with"
+					ewarn "this installation source. Please disable it."
+				fi ;;
+		esac
+
+		local group dir cdnum
+		case ${CDROM_SET} in
+			0)
+				# Symlinks for unshield. These files need to be in the same
+				# directory but on the disk, they are not for some reason.
+				ln -snf "${CDROM_ROOT}"/{Disk1/data1.hdr,Disk*/data*.cab} "${T}"/ || die
+
+				for group in $(unshield g "${T}"/data1.cab || die); do
+					case ${group} in
+						3_UnrealTournament_System_All) : ;;
+						3_UnrealTournament_EXE|3_UnrealTournament_Manual_*|3_UnrealTournament_NetGamesUSA|3_UnrealTournament_System_*|3_UnrealTournament_Web) continue ;;
+						3_UnrealTournament_*) : ;;
+						*) continue ;;
+					esac
+					locale_mismatch "${group}" && continue
+					unshield -g "${group}" x "${T}"/data1.cab || die
+				done
+
+				for dir in 3_UnrealTournament_*; do
+					mv -v "${dir}" "${dir#3_UnrealTournament_}" || die
+				done
+
+				use l10n_es && { rename -v .uax .est_uax Sounds_Spanish/*.uax || die; }
+				use l10n_fr && { rename -v .uax .frt_uax Sounds_French/*.uax || die; }
+				use l10n_it && { rename -v .uax .itt_uax Sounds_Italian/*.uax || die; }
+
+				for dir in *_*/; do
+					mkdir -p "${dir%_*}" || die
+					tar -C "${dir}" --remove-files -cf - . | tar -C "${dir%_*}" -xvf - || die
+				done
+				;;
+
+			1)
+				tar -C "${CDROM_ROOT}" --mode=u+w -cf - . | tar -xvf - || die
+
+				# The engine has the decompresser for the maps. TODO: Use the
+				# new -samefolder option when bumping the engine to 469f.
+				unreal-tournament-ucc &>/dev/null || die # Create ~/.utpg early to avoid race.
+				ls Maps/*.unr.uz | xargs -P "$(get_makeopts_jobs)" -ti unreal-tournament-ucc decompress "${PWD}"/{} >/dev/null || die
+				mv -v ~/.utpg/System/*.unr Maps/ || die
+				rm -v Maps/*.unr.uz || die
+				;;
+
+			2)
+				tar -C "${CDROM_ROOT}" --mode=u+w -cf - . | tar -xvf - || die
+
+				# Extract Bonus Packs 1-3, which were included in GOTY Edition.
+				bsdtar --strip-components=1 -xvf "${DISTDIR}"/utbonuspack-zip.zip || die
+				bsdtar -C Maps -xvf "${DISTDIR}"/utbonuspack2.zip \*.unr || die
+				bsdtar --strip-components=1 -xvf "${DISTDIR}"/utbonuspack3-zip.zip || die
+				mv system/* System/ || die
+				mv textures/* Textures/ || die
+				;;
+		esac
+
+		# Filename casing of localised audio needs to match the English version.
+		mv -v Sounds/{OpeningWave,openingwave}.est_uax || die
+	fi
+
+	# None of the installation sources include Bonus Pack 4, but OldUnreal's
+	# installer includes it, so we should too.
+	bsdtar -xvf "${DISTDIR}"/utbonuspack4-zip.7z || die
+}
+
+src_install() {
+	local dir file
+
+	if use doc; then
+		case ${CDROM_SET} in
+			0) newdoc "${CDROM_ROOT}"/Manuals/UnrealTournament_English.pdf Manual.pdf ;;
+			1|2) : ;; # No PDF
+			*) dodoc Manual/Manual.pdf ;;
+		esac
+	fi
+
+	# Drop unwanted localisation files.
+	while read -r file; do
+		if locale_mismatch "${file}"; then
+			rm -v "${file}" || die
+		fi
+	done < <(find -type f)
+
+	insinto /opt/unreal-tournament
+	keepdir /opt/unreal-tournament/Logs
+
+	# Drop any other non-localisation files not included in our listings for
+	# cleanliness and consistency between installation sources. These listings
+	# are (mostly) based on OldUnreal's installation.
+	for file in "${FILESDIR}"/listings/*; do
+		dir=${file##*/}
+		find "${dir}" -type f | grep -Fxvf <(sed -r -e "s:^:${dir}/:" -e 's:(.*)\.uax$:\1.uax\n\1.est_uax\n\1.frt_uax\n\1.itt_uax:' "${file}") | xargs -r rm -v -- || die
+		doins -r "${dir}"
+	done
+
+	# The same map with different filenames works for Deathmatch and Domination.
+	dosym "DM-Cybrosis][.unr" "/opt/unreal-tournament/Maps/DOM-Cybrosis][.unr"
+}
+
+pkg_postinst() {
+	einfo "Much better textures are available from the Unreal HD Textures project."
+	einfo "You can simply extract their .utx files into ~/.utpg/Textures."
+}