Research into the Abyss of Pandemonium (AoP) Quake mod.
Below is a list of known releases of the AoP Quake modification and locations where the files were known to be located (if available).
Use the internet archive wayback machine to check the links.
abyss-mac-demo.hqx
http://asp.planetquake.com/dl/dl.asp?impel/abyss-mac-demo.hqx
http://dl.fileplanet.com/dl/dl.asp?impel/abyss-mac-demo.hqx
http://dukeworld.com/planetquake/impel/abyss-mac-demo.hqx
http://ftp.sunet.se/planetquake/abyss-mac-demo.hqx
http://ftp.sunet.se/planetquake/impel/abyss-mac-demo.hqx
http://ftp.sunet.se/pub/games/PC/idgames2/planetquake/impel/abyss-mac-demo.hqx
http://ftp.sunet.se/pub/pc/games/idgames2/planetquake/abyss-mac-demo.hqx
http://ftp.sunet.se/pub/pc/games/idgames2/planetquake/impel/abyss-mac-demo.hqx
http://ftp.telepac.pt/pub/idgames2/planetquake/impel/abyss-mac-demo.hqx
http://gamers.org/pub/games/idgames2/planetquake/impel/abyss-mac-demo.hqx
http://mirror.aarnet.edu.au/games/planetquake/abyss-mac-demo.hqx
http://mirror.aarnet.edu.au/games/planetquake/impel/abyss-mac-demo.hqx
http://mirrors.telepac.pt/pub/idgames2/planetquake/impel/abyss-mac-demo.hqx
http://src.doc.ic.ac.uk/Mirrors/ftp.freebsd.org/pub/planetquake/impel/abyss-mac-demo.hqx
http://src.doc.ic.ac.uk/public/Mirrors/ftp.cdrom.com/pub/planetquake/impel/abyss-mac-demo.hqx
http://src.doc.ic.ac.uk/public/computing/vendor/idgames2/planetquake/impel/abyss-mac-demo.hqx
http://sunsite.doc.ic.ac.uk/Mirrors/ftp.cdrom.com/pub/quake/planetquake/impel/abyss-mac-demo.hqx
http://sunsite.org.uk/packages/idgames2/planetquake/impel/abyss-mac-demo.hqx
http://www.gamers.org/pub/games/idgames2/planetquake/impel/abyss-mac-demo.hqx
http://www.gamers.org/pub/idgames2/planetquake/impel/abyss-mac-demo.hqx
http://www.gamers.org/pub/mirrors/ftp.planetquake.com/impel/abyss-mac-demo.hqx
https://www.quaddicted.com/files/idgames2/planetquake/impel/abyss-mac-demo.hqx
https://www.quaddicted.com/files/mirrors/ftp.planetquake.com/impel/abyss-mac-demo.hqx
abyss-tabs.exe
http://asp.planetquake.com/dl/dl.asp?impel/abyss-tabs.exe
http://dl.fileplanet.com/dl/dl.asp?impel/abyss-tabs.exe
http://dukeworld.com/planetquake/impel/abyss-tabs.exe
http://ftp.sunet.se/planetquake/abyss-tabs.exe
http://ftp.sunet.se/planetquake/impel/abyss-tabs.exe
http://ftp.sunet.se/pub/games/PC/idgames2/planetquake/impel/abyss-tabs.exe
http://ftp.sunet.se/pub/pc/games/idgames2/planetquake/impel/abyss-tabs.exe
http://ftp.telepac.pt/pub/idgames2/planetquake/impel/abyss-tabs.exe
http://gamers.org/pub/games/idgames2/planetquake/impel/abyss-tabs.exe
http://mirror.aarnet.edu.au/games/planetquake/abyss-tabs.exe
http://mirror.aarnet.edu.au/games/planetquake/impel/abyss-tabs.exe
http://mirrors.telepac.pt/pub/idgames2/planetquake/impel/abyss-tabs.exe
http://src.doc.ic.ac.uk/Mirrors/ftp.freebsd.org/pub/planetquake/impel/abyss-tabs.exe
http://src.doc.ic.ac.uk/computing/vendor/idgames2/planetquake/impel/abyss-tabs.exe
http://src.doc.ic.ac.uk/public/Mirrors/ftp.cdrom.com/pub/planetquake/impel/abyss-tabs.exe
http://src.doc.ic.ac.uk/public/computing/vendor/idgames2/planetquake/impel/abyss-tabs.exe
http://src.doc.ic.ac.uk/public/packages/idgames2/planetquake/impel/abyss-tabs.exe
http://sunsite.doc.ic.ac.uk/Mirrors/ftp.cdrom.com/pub/quake/planetquake/impel/abyss-tabs.exe
http://sunsite.org.uk/packages/idgames2/planetquake/impel/abyss-tabs.exe
http://www.gamers.org/pub/games/idgames2/planetquake/impel/abyss-tabs.exe
http://www.gamers.org/pub/idgames2/planetquake/impel/abyss-tabs.exe
http://www.gamers.org/pub/mirrors/ftp.planetquake.com/impel/abyss-tabs.exe
https://www.quaddicted.com/files/idgames2/planetquake/impel/abyss-tabs.exe
https://www.quaddicted.com/files/mirrors/ftp.planetquake.com/impel/abyss-tabs.exe
abyss-trans-dm.rar
http://www.planetquake.com/impel/ftpdir/abyss-trans-dm.rar
abyss-trans-sp.rar
http://www.planetquake.com/impel/ftpdir/abyss-trans-sp.rar
abyss-x86-demo.exe
ftp://3dgamers.in-span.net/pub/3dgamers/games/quake/Missions/abyss-x86-demo.exe
ftp://3dgamers.in-span.net/pub/3dgamers1/games/quake/Missions/abyss-x86-demo.exe
ftp://3dgamers.mirror.internode.on.net/3dgamers/games/quake/Missions/abyss-x86-demo.exe
ftp://ftp.3dgamers.com/pub/3dgamers/games/quake/Missions/abyss-x86-demo.exe
ftp://ftp2.3dgamers.com/pub/3dgamers/games/quake/Missions/abyss-x86-demo.exe
ftp://ftp6.3dgamers.com/pub/3daction/00archives/quake/missions/abyss-x86-demo.exe
ftp://ftp6.3dgamers.com/pub/3dgamers/games/quake/Missions/abyss-x86-demo.exe
ftp://ftp7.3dgamers.com/pub/3daction/00archives/quake/missions/abyss-x86-demo.exe
ftp://ftp7.3dgamers.com/pub/3dgamers/games/quake/Missions/abyss-x86-demo.exe
http://3dgamers.planetmirror.com/pub/3dgamers/games/quake/Missions/abyss-x86-demo.exe
http://3dgxfer1p.3dgamers.com/3dgamers/games/quake/Missions/abyss-x86-demo.exe
http://3dgxfer2p.3dgamers.com/3dgamers/games/quake/Missions/abyss-x86-demo.exe
http://3dgxfer6p.3dgamers.com/3dgamers/games/quake/Missions/abyss-x86-demo.exe
http://3dgxfer7p.3dgamers.com/3dgamers/games/quake/Missions/abyss-x86-demo.exe
http://asp.planetquake.com/dl/dl.asp?impel/abyss-x86-demo.exe
http://dukeworld.com/planetquake/impel/abyss-x86-demo.exe
http://ftp.sunet.se/planetquake/abyss-x86-demo.exe
http://ftp.sunet.se/planetquake/impel/abyss-x86-demo.exe
http://ftp.sunet.se/pub/games/PC/idgames2/planetquake/impel/abyss-x86-demo.exe
http://ftp.sunet.se/pub/pc/games/idgames2/planetquake/abyss-x86-demo.exe
http://ftp.sunet.se/pub/pc/games/idgames2/planetquake/impel/abyss-x86-demo.exe
http://ftp.telepac.pt/pub/idgames2/planetquake/impel/abyss-x86-demo.exe
http://gamers.org/pub/games/idgames2/planetquake/impel/abyss-x86-demo.exe
http://mirror.aarnet.edu.au/games/planetquake/abyss-x86-demo.exe
http://mirror.aarnet.edu.au/games/planetquake/impel/abyss-x86-demo.exe
http://src.doc.ic.ac.uk/Mirrors/ftp.freebsd.org/pub/planetquake/impel/abyss-x86-demo.exe
http://src.doc.ic.ac.uk/public/Mirrors/ftp.cdrom.com/pub/planetquake/impel/abyss-x86-demo.exe
http://src.doc.ic.ac.uk/public/computing/vendor/idgames2/planetquake/impel/abyss-x86-demo.exe
http://sunsite.doc.ic.ac.uk/Mirrors/ftp.cdrom.com/pub/quake/planetquake/impel/abyss-x86-demo.exe
http://sunsite.org.uk/packages/idgames2/planetquake/impel/abyss-x86-demo.exe
http://www.filefront.com?skin=121&filepath=/3dgamers/games/quake/Missions/abyss-x86-demo.exe
http://www.gamers.org/pub/games/idgames2/planetquake/impel/abyss-x86-demo.exe
http://www.gamers.org/pub/idgames2/planetquake/impel/abyss-x86-demo.exe
http://www.gamers.org/pub/mirrors/ftp.planetquake.com/impel/abyss-x86-demo.exe
https://www.quaddicted.com/files/idgames2/planetquake/impel/abyss-x86-demo.exe
https://www.quaddicted.com/files/mirrors/ftp.planetquake.com/impel/abyss-x86-demo.exe
abyss-x86-demo.txt
http://ftp.3dgamers.com/pub/3daction/quake/missions/abyss-x86-demo.txt
http://www.3dgamers.com/dl/games/quake/Missions/abyss-x86-demo.txt
http://www.3dgamers.com/dlselect/games/quake/Missions/abyss-x86-demo.txt
http://www.gamers.org/pub/3daction/quake/missions/abyss-x86-demo.txt
abyss-x86-full.exe
http://www.planetquake.com/impel/abyss-x86-full.exe
abyss-x86-up107.exe
http://asp.planetquake.com/dl/dl.asp?impel/abyss-x86-up107.exe
http://dl.fileplanet.com/dl/dl.asp?impel/abyss-x86-up107.exe
http://dukeworld.com/planetquake/impel/abyss-x86-up107.exe
http://ftp.sunet.se/planetquake/abyss-x86-up107.exe
http://ftp.sunet.se/planetquake/impel/abyss-x86-up107.exe
http://ftp.sunet.se/pub/games/PC/idgames2/planetquake/impel/abyss-x86-up107.exe
http://ftp.sunet.se/pub/pc/games/idgames2/planetquake/abyss-x86-up107.exe
http://ftp.sunet.se/pub/pc/games/idgames2/planetquake/impel/abyss-x86-up107.exe
http://ftp.telepac.pt/pub/idgames2/planetquake/impel/abyss-x86-up107.exe
http://gamers.org/pub/games/idgames2/planetquake/impel/abyss-x86-up107.exe
http://mirror.aarnet.edu.au/games/planetquake/abyss-x86-up107.exe
http://mirror.aarnet.edu.au/games/planetquake/impel/abyss-x86-up107.exe
http://src.doc.ic.ac.uk/Mirrors/ftp.freebsd.org/pub/planetquake/impel/abyss-x86-up107.exe
http://src.doc.ic.ac.uk/public/Mirrors/ftp.cdrom.com/pub/planetquake/impel/abyss-x86-up107.exe
http://src.doc.ic.ac.uk/public/computing/vendor/idgames2/planetquake/impel/abyss-x86-up107.exe
http://sunsite.doc.ic.ac.uk/Mirrors/ftp.cdrom.com/pub/quake/planetquake/impel/abyss-x86-up107.exe
http://sunsite.org.uk/packages/idgames2/planetquake/impel/abyss-x86-up107.exe
http://www.gamers.org/pub/games/idgames2/planetquake/impel/abyss-x86-up107.exe
http://www.gamers.org/pub/idgames2/planetquake/impel/abyss-x86-up107.exe
http://www.gamers.org/pub/mirrors/ftp.planetquake.com/impel/abyss-x86-up107.exe
https://www.quaddicted.com/files/idgames2/planetquake/impel/abyss-x86-up107.exe
https://www.quaddicted.com/files/mirrors/ftp.planetquake.com/impel/abyss-x86-up107.exe
https://www.quake-info-pool.net/files/addons/aop/abyss-x86-up107.exe
abyss-x86-up109.exe
ftp://3dgamers.in-span.net/pub/3dgamers/games/quake/Missions/abyss-x86-up109.exe
ftp://3dgamers.in-span.net/pub/3dgamers1/games/quake/Missions/abyss-x86-up109.exe
ftp://3dgamers.mirror.internode.on.net/3dgamers/games/quake/Missions/abyss-x86-up109.exe
ftp://ftp.3dgamers.com/pub/3dgamers/games/quake/Missions/abyss-x86-up109.exe
ftp://ftp2.3dgamers.com/pub/3dgamers/games/quake/Missions/abyss-x86-up109.exe
ftp://ftp6.3dgamers.com/pub/3daction/00archives/quake/missions/abyss-x86-up109.exe
ftp://ftp7.3dgamers.com/pub/3daction/00archives/quake/missions/abyss-x86-up109.exe
http://3dgamers.planetmirror.com/pub/3dgamers/games/quake/Missions/abyss-x86-up109.exe
http://3dgxfer1p.3dgamers.com/3dgamers/games/quake/Missions/abyss-x86-up109.exe
http://3dgxfer2p.3dgamers.com/3dgamers/games/quake/Missions/abyss-x86-up109.exe
http://3dgxfer6p.3dgamers.com/3dgamers/games/quake/Missions/abyss-x86-up109.exe
http://3dgxfer7p.3dgamers.com/3dgamers/games/quake/Missions/abyss-x86-up109.exe
http://dl.fileplanet.com/dl/dl.asp?impel/abyss-x86-up109.exe
http://dukeworld.com/planetquake/impel/abyss-x86-up109.exe
http://ftp.sunet.se/planetquake/impel/abyss-x86-up109.exe
http://ftp.sunet.se/pub/games/PC/idgames2/planetquake/impel/abyss-x86-up109.exe
http://ftp.sunet.se/pub/pc/games/idgames2/planetquake/impel/abyss-x86-up109.exe
http://ftp.telepac.pt/pub/3dfiles/patches/abyss-x86-up109.exe
http://gamers.org/pub/games/idgames2/planetquake/impel/abyss-x86-up109.exe
http://src.doc.ic.ac.uk/Mirrors/ftp.freebsd.org/pub/planetquake/impel/abyss-x86-up109.exe
http://src.doc.ic.ac.uk/public/Mirrors/ftp.cdrom.com/pub/planetquake/impel/abyss-x86-up109.exe
http://src.doc.ic.ac.uk/public/computing/vendor/idgames2/planetquake/impel/abyss-x86-up109.exe
http://sunsite.doc.ic.ac.uk/Mirrors/ftp.cdrom.com/pub/quake/planetquake/impel/abyss-x86-up109.exe
http://sunsite.org.uk/packages/idgames2/planetquake/impel/abyss-x86-up109.exe
http://www.filefront.com?skin=121&filepath=/3dgamers/games/quake/Missions/abyss-x86-up109.exe
http://www.gamers.org/pub/games/idgames2/planetquake/impel/abyss-x86-up109.exe
http://www.gamers.org/pub/idgames2/planetquake/impel/abyss-x86-up109.exe
http://www.gamers.org/pub/mirrors/ftp.planetquake.com/impel/abyss-x86-up109.exe
https://www.quaddicted.com/files/idgames2/planetquake/impel/abyss-x86-up109.exe
https://www.quaddicted.com/files/mirrors/ftp.planetquake.com/impel/abyss-x86-up109.exe
abyss-x86-up109.txt
http://ftp.3dgamers.com/pub/3daction/quake/missions/abyss-x86-up109.txt
http://www.3dgamers.com/dl/games/quake/Missions/abyss-x86-up109.txt
http://www.3dgamers.com/dlselect/games/quake/Missions/abyss-x86-up109.txt
abyss-x86-up110.exe
http://www.planetquake.com/impel/ftpdir/abyss-x86-up110.exe
abyss-x86-up110.zip
http://www.planetquake.com/impel/ftpdir/abyss-x86-up110.zip
abyss-x86-v100.exe
http://www.planetquake.com/impel/files/elite/Abyss-x86-v100.exe
abyss-x86-v200.exe
ftp://3dgamers.in-span.net/pub/3dgamers/games/quake/Missions/abyss-x86-v200.exe
ftp://3dgamers.in-span.net/pub/3dgamers1/games/quake/Missions/abyss-x86-v200.exe
ftp://3dgamers.mirror.internode.on.net/3dgamers/games/quake/Missions/abyss-x86-v200.exe
ftp://ftp.3dgamers.com/pub/3dgamers/games/quake/Missions/abyss-x86-v200.exe
ftp://ftp2.3dgamers.com/pub/3dgamers/games/quake/Missions/abyss-x86-v200.exe
ftp://ftp6.3dgamers.com/pub/3dgamers/games/quake/Missions/abyss-x86-v200.exe
ftp://ftp7.3dgamers.com/pub/3dgamers/games/quake/Missions/abyss-x86-v200.exe
http://3dgamers.planetmirror.com/pub/3dgamers/games/quake/Missions/abyss-x86-v200.exe
http://3dgxfer1p.3dgamers.com/3dgamers/games/quake/Missions/abyss-x86-v200.exe
http://3dgxfer2p.3dgamers.com/3dgamers/games/quake/Missions/abyss-x86-v200.exe
http://3dgxfer6p.3dgamers.com/3dgamers/games/quake/Missions/abyss-x86-v200.exe
http://3dgxfer7p.3dgamers.com/3dgamers/games/quake/Missions/abyss-x86-v200.exe
http://www.filefront.com?skin=121&filepath=/3dgamers/games/quake/Missions/abyss-x86-v200.exe
https://www.quake-info-pool.net/files/addons/aop/abyss-x86-v200.exe
abyss-x86-v200.r00
http://www.planetquake.com/impel/ftpdir/Abyss-x86-v200.r00
abyss-x86-v200.r01
http://www.planetquake.com/impel/ftpdir/Abyss-x86-v200.r01
abyss-x86-v200.r02
http://www.planetquake.com/impel/ftpdir/Abyss-x86-v200.r02
abyss-x86-v200.rar
http://impel.planetquake.gamespy.com/ftpdir/Abyss-x86-v200.rar
http://www.planetquake.com/impel/ftpdir/Abyss-x86-v200.rar
abyss-x86-v200.txt
http://www.3dgamers.com/dl/games/quake/Missions/abyss-x86-v200.txt
http://www.3dgamers.com/dlselect/games/quake/Missions/abyss-x86-v200.txt
aop1.zip
https://www.quaddicted.com/files/mirrors/fileplanet/planetquake/teamshambler/Aop1.zip
aop2.zip
http://www.fileplanet.com/dl/dl.asp?teamshambler/Aop2.zip
https://www.quaddicted.com/filebase/Aop2.zip
aop2m1.zip
http://www.fileplanet.com/dl.aspx?/planetquake/underworld/aop2m1.zip
https://www.quaddicted.com/filebase/aop2m1.zip
https://www.quaddicted.com/files/mirrors/quakerepo.net/singleplayer-deathmatch/maps/aop2m1.zip
aop_demo.sit
ftp://ftp.cdrom.com/pub/idgames2/planetquake/AoP_Demo.sit
http://ftp.gamers.org/pub/games/idgames2/planetquake/AoP_Demo.sit
http://ftp.gamers.org/pub/games/idgames2/planetquake/jvox/AoP_Demo.sit
http://ftp.sunet.se/planetquake/AoP_Demo.sit
http://ftp.sunet.se/planetquake/jvox/AoP_Demo.sit
http://ftp.sunet.se/pub/pc/games/idgames2/planetquake/jvox/AoP_Demo.sit
http://ftp.telepac.pt/pub/idgames2/planetquake/jvox/AoP_Demo.sit
http://mirror.aarnet.edu.au/games/planetquake/jvox/AoP_Demo.sit
http://mirrors.telepac.pt/pub/idgames2/planetquake/jvox/AoP_Demo.sit
http://src.doc.ic.ac.uk/Mirrors/ftp.freebsd.org/pub/planetquake/jvox/AoP_Demo.sit
http://src.doc.ic.ac.uk/Mirrors/ftp.freebsd.org/pub/planetquake/jvox/aop_demo.sit
http://src.doc.ic.ac.uk/computing/vendor/idgames2/planetquake/jvox/aop_demo.sit
http://src.doc.ic.ac.uk/public/Mirrors/ftp.cdrom.com/pub/planetquake/jvox/AoP_Demo.sit
http://src.doc.ic.ac.uk/public/Mirrors/ftp.cdrom.com/pub/planetquake/jvox/aop_demo.sit
http://src.doc.ic.ac.uk/public/computing/vendor/idgames2/planetquake/jvox/AoP_Demo.sit
http://src.doc.ic.ac.uk/public/computing/vendor/idgames2/planetquake/jvox/aop_demo.sit
http://sunsite.doc.ic.ac.uk/Mirrors/ftp.cdrom.com/pub/quake/planetquake/jvox/AoP_Demo.sit
http://sunsite.doc.ic.ac.uk/Mirrors/ftp.cdrom.com/pub/quake/planetquake/jvox/aop_demo.sit
http://sunsite.org.uk/packages/idgames2/planetquake/jvox/AoP_Demo.sit
http://sunsite.org.uk/packages/idgames2/planetquake/jvox/aop_demo.sit
http://www.gamers.org/pub/games/idgames2/planetquake/jvox/AoP_Demo.sit
http://www.gamers.org/pub/idgames2/planetquake/jvox/AoP_Demo.sit
http://www.gamers.org/pub/mirrors/ftp.planetquake.com/jvox/AoP_Demo.sit
https://www.quaddicted.com/files/idgames2/planetquake/jvox/AoP_Demo.sit
https://www.quaddicted.com/files/mirrors/ftp.planetquake.com/jvox/AoP_Demo.sit
aop_demo_installer.hqx
http://download.instantaccess.com/AOP_Demo_Installer.hqx
aop_litvis.zip
http://www.quaketastic.com/files/misc/litvis_packs/aop_litvis.zip
https://www.quaddicted.com/webarchive/www.quaketastic.com/files/misc/litvis_packs/aop_litvis.zip
aopdemo.exe
http://download.instantaccess.com/aopdemo.exe
http://ftp.gamers.org/pub/games/idgames2/partial_conversions/aopdemo.exe
http://ftp.mancubus.net/pub/idgamepartial_conversions/aopdemo.exe
http://ftp.mancubus.net/pub/idgames2/partial_conversions/aopdemo.exe
http://ftp.planetmirror.com/pub/idgames2/partial_conversions/aopdemo.exe
http://ftp.sunet.se/idgames2/partial_conversions/aopdemo.exe
http://ftp.sunet.se/pub/games/PC/idgames2/partial_conversions/aopdemo.exe
http://ftp.sunet.se/pub/pc/games/idgames2/partial_conversions/aopdemo.exe
http://ftp.sunet.se/pub2/pc/games/idgames2/partial_conversions/aopdemo.exe
http://gamers.org/pub/games/idgames2/partial_conversions/aopdemo.exe
http://mirror.aarnet.edu.au/games/idgames2/aopdemo.exe
http://perl.gamespot.com/perl/download?/action/abysspan/aopdemo.exe
http://sunsite.doc.ic.ac.uk/packages/idgames2/partial_conversions/aopdemo.exe
http://www.gamers.org/pub/games/quake/partial_conversions/aopdemo.exe
http://www.gamers.org/pub/idgames2/partial_conversions/aopdemo.exe
http://www.instantaccess.com/products.dir/aop/aopdemo.exe
http://www.vrgames.net/psychonews/files/AOPDEMO.EXE
https://www.quaddicted.com/files/idgames2/partial_conversions/aopdemo.exe
aopdemo.txt
http://bluesnews.gameaholic.com/idgames/partial_conversions/aopdemo.txt
http://ftp.gamers.org/pub/games/idgames2/partial_conversions/aopdemo.txt
http://ftp.gamers.org/pub/idgames2/partial_conversions/aopdemo.txt
http://ftp.mancubus.net/pub/idgamepartial_conversions/aopdemo.txt
http://ftp.mancubus.net/pub/idgames2/partial_conversions/aopdemo.txt
http://ftp.planetmirror.com/pub/idgames2/partial_conversions/aopdemo.txt
http://ftp.sunet.se/idgames2/partial_conversions/aopdemo.txt
http://ftp.sunet.se/pub/games/PC/idgames2/partial_conversions/aopdemo.txt
http://ftp.sunet.se/pub/pc/games/idgames2/partial_conversions/aopdemo.txt
http://ftp.sunet.se/pub2/pc/games/idgames2/partial_conversions/aopdemo.txt
http://gamers.org/pub/games/idgames2/partial_conversions/aopdemo.txt
http://idgames.gameaholic.com/idgames/partial_conversions/aopdemo.txt
http://mirror.aarnet.edu.au/games/idgames2/aopdemo.txt
http://quake.errorabove.com/Old%20Archive/partial_conversions/aopdemo.txt
http://src.doc.ic.ac.uk/Mirrors/ftp.freebsd.org/pub/idgames2/partial_conversions/aopdemo.txt
http://src.doc.ic.ac.uk/pub/packages/idgames2/partial_conversions/aopdemo.txt
http://src.doc.ic.ac.uk/public/Mirrors/ftp.cdrom.com/pub/quake/partial_conversions/aopdemo.txt
http://src.doc.ic.ac.uk/public/packages/quake/partial_conversions/aopdemo.txt
http://src.doc.ic.ac.uk/public/public/0-Most-Packages/idgames2/partial_conversions/aopdemo.txt
http://src.doc.ic.ac.uk/public/public/0-Most-Packages/quake/partial_conversions/aopdemo.txt
http://src.doc.ic.ac.uk/public/public/packages/idgames2/partial_conversions/aopdemo.txt
http://sunsite.doc.ic.ac.uk/packages/idgames2/partial_conversions/aopdemo.txt
http://sunsite.doc.ic.ac.uk/pub/0-Most-Packages/idgames2/partial_conversions/aopdemo.txt
http://sunsite.doc.ic.ac.uk/pub/0-Most-Packages/quake/partial_conversions/aopdemo.txt
http://sunsite.doc.ic.ac.uk/public/packages/idgames2/partial_conversions/aopdemo.txt
http://sunsite.doc.ic.ac.uk/public/packages/quake/partial_conversions/aopdemo.txt
http://sunsite.doc.ic.ac.uk/public/pub/0-Most-Packages/quake/partial_conversions/aopdemo.txt
http://www.fileaholic.com/idgames/partial_conversions/aopdemo.txt
http://www.gamers.org/pub/games/quake/partial_conversions/aopdemo.txt
http://www.gamers.org/pub/idgames2/partial_conversions/aopdemo.txt
https://www.quaddicted.com/files/idgames2/partial_conversions/aopdemo.txt
aopdemoinstaller
http://www.vrgames.net/psychonews/files/AOPDemoInstaller
aopfm_v2.zip
http://www.quaddicted.com/filebase/aopfm_v2.zip
https://www.quaddicted.com/filebase/aopfm_v2.zip
https://www.quaddicted.com/files/maps/singleplayer/aopfm_v2.zip
aopv105.zip
ftp://ftp.elogica.com.br/pub/warlock/aopv105.zip
http://tux.telefragged.com/telefragged/tenfourmaps/q1/aopv105.zip
http://www.3ddownloads.com/telefragged/tenfourmaps/q1/aopv105.zip
http://www.quaddicted.com/aopv105.zip
http://www.quaddicted.com/filebase/aopv105.zip
http://www.quaketerminus.com/mods/aopv105.zip
http://www.quaketerminus.freeola.com/mods/aopv105.zip
https://www.quaddicted.com/filebase/aopv105.zip
https://www.quaddicted.com/files/maps/singleplayer/aopv105.zip
https://www.quaddicted.com/files/mirrors/ftp.telefragged.com/tenfourmaps/q1/aopv105.zip
aopv105a.zip
ftp://ftp.cdrom.com/pub/planetquake/impel/aopv105a.zip
http://src.doc.ic.ac.uk/Mirrors/ftp.freebsd.org/pub/planetquake/fatty/aopv105a.zip
http://src.doc.ic.ac.uk/computing/vendor/idgames2/planetquake/fatty/aopv105a.zip
http://src.doc.ic.ac.uk/public/Mirrors/ftp.cdrom.com/pub/planetquake/fatty/aopv105a.zip
http://src.doc.ic.ac.uk/public/computing/vendor/idgames2/planetquake/fatty/aopv105a.zip
http://sunsite.doc.ic.ac.uk/Mirrors/ftp.cdrom.com/pub/quake/planetquake/fatty/aopv105a.zip
http://sunsite.org.uk/packages/idgames2/planetquake/fatty/aopv105a.zip
http://www.planetquake.com/impel/cdrom/aopv105a.zip
https://www.quake-info-pool.net/files/addons/aop/aopv105a.zip
aopv105b.zip
ftp://ftp.barrysworld.com/Quake1/Mods/Aop/aopv105b.zip
ftp://ftp.barrysworld.com/quake1/mods/aop/aopv105b.zip
ftp://ftp.cdrom.com/pub/planetquake/impel/aopv105b.zip
http://src.doc.ic.ac.uk/Mirrors/ftp.freebsd.org/pub/planetquake/fatty/aopv105b.zip
http://src.doc.ic.ac.uk/public/Mirrors/ftp.cdrom.com/pub/planetquake/fatty/aopv105b.zip
http://src.doc.ic.ac.uk/public/computing/vendor/idgames2/planetquake/fatty/aopv105b.zip
http://sunsite.doc.ic.ac.uk/Mirrors/ftp.cdrom.com/pub/quake/planetquake/fatty/aopv105b.zip
http://sunsite.org.uk/packages/idgames2/planetquake/fatty/aopv105b.zip
http://www.planetquake.com/impel/cdrom/aopv105b.zip
https://www.quake-info-pool.net/files/addons/aop/aopv105b.zip
aopv105c.zip
ftp://ftp.barrysworld.com/Quake1/Mods/Aop/aopv105c.zip
ftp://ftp.barrysworld.com/pub/games/quake/mods/aop/aopv105c.zip
ftp://ftp.barrysworld.com/quake1/mods/aop/aopv105c.zip
ftp://ftp.cdrom.com/pub/planetquake/impel/aopv105c.zip
http://src.doc.ic.ac.uk/Mirrors/ftp.freebsd.org/pub/planetquake/fatty/aopv105c.zip
http://src.doc.ic.ac.uk/public/Mirrors/ftp.cdrom.com/pub/planetquake/fatty/aopv105c.zip
http://src.doc.ic.ac.uk/public/computing/vendor/idgames2/planetquake/fatty/aopv105c.zip
http://sunsite.doc.ic.ac.uk/Mirrors/ftp.cdrom.com/pub/quake/planetquake/fatty/aopv105c.zip
http://sunsite.org.uk/packages/idgames2/planetquake/fatty/aopv105c.zip
http://www.planetquake.com/impel/cdrom/aopv105c.zip
https://www.quake-info-pool.net/files/addons/aop/aopv105c.zip
aopv105d.zip
ftp://ftp.cdrom.com/pub/planetquake/impel/aopv105d.zip
http://src.doc.ic.ac.uk/Mirrors/ftp.freebsd.org/pub/planetquake/fatty/aopv105d.zip
http://src.doc.ic.ac.uk/public/Mirrors/ftp.cdrom.com/pub/planetquake/fatty/aopv105d.zip
http://src.doc.ic.ac.uk/public/computing/vendor/idgames2/planetquake/fatty/aopv105d.zip
http://sunsite.doc.ic.ac.uk/Mirrors/ftp.cdrom.com/pub/quake/planetquake/fatty/aopv105d.zip
http://sunsite.org.uk/packages/idgames2/planetquake/fatty/aopv105d.zip
http://www.planetquake.com/impel/cdrom/aopv105d.zip
https://www.quake-info-pool.net/files/addons/aop/aopv105d.zip
psychoabyssdm.exe
http://asp.planetquake.com/dl/dl.asp?impel/psychoabyssdm.exe
http://dl.fileplanet.com/dl/dl.asp?impel/psychoabyssdm.exe
http://dukeworld.com/planetquake/impel/psychoabyssdm.exe
http://ftp.sunet.se/planetquake/impel/psychoabyssdm.exe
http://ftp.sunet.se/planetquake/psychoabyssdm.exe
http://ftp.sunet.se/pub/games/PC/idgames2/planetquake/impel/psychoabyssdm.exe
http://ftp.sunet.se/pub/pc/games/idgames2/planetquake/impel/psychoabyssdm.exe
http://ftp.sunet.se/pub/pc/games/idgames2/planetquake/psychoabyssdm.exe
http://ftp.telepac.pt/pub/idgames2/planetquake/impel/psychoabyssdm.exe
http://gamers.org/pub/games/idgames2/planetquake/impel/psychoabyssdm.exe
http://mirror.aarnet.edu.au/games/planetquake/impel/psychoabyssdm.exe
http://mirrors.telepac.pt/pub/idgames2/planetquake/impel/psychoabyssdm.exe
http://src.doc.ic.ac.uk/Mirrors/ftp.freebsd.org/pub/planetquake/impel/psychoabyssdm.exe
http://src.doc.ic.ac.uk/public/Mirrors/ftp.cdrom.com/pub/planetquake/impel/psychoabyssdm.exe
http://src.doc.ic.ac.uk/public/computing/vendor/idgames2/planetquake/impel/psychoabyssdm.exe
http://sunsite.doc.ic.ac.uk/Mirrors/ftp.cdrom.com/pub/quake/planetquake/impel/psychoabyssdm.exe
http://sunsite.org.uk/packages/idgames2/planetquake/impel/psychoabyssdm.exe
http://www.gamers.org/pub/games/idgames2/planetquake/impel/psychoabyssdm.exe
http://www.gamers.org/pub/idgames2/planetquake/impel/psychoabyssdm.exe
http://www.gamers.org/pub/mirrors/ftp.planetquake.com/impel/psychoabyssdm.exe
https://www.quaddicted.com/files/idgames2/planetquake/impel/psychoabyssdm.exe
https://www.quaddicted.com/files/mirrors/ftp.planetquake.com/impel/psychoabyssdm.exe
AOP%20-%20The%20Final%20Mission%20v2.0%20%20extended_20140623%20%20%2B%20source%20fixed.rar
http://www.quaketastic.com/files/single_player/mods/AOP%20-%20The%20Final%20Mission%20v2.0%20%20extended_20140623%20%20%2B%20source%20fixed.rar
https://www.quaddicted.com/webarchive/www.quaketastic.com/files/single_player/mods/AOP%20-%20The%20Final%20Mission%20v2.0%20%20extended_20140623%20%20%2B%20source%20fixed.rar
AOP%20-%20The%20Final%20Mission%20v2.0%20%20extended_20160330.rar
http://www.quaketastic.com/files/single_player/mods/AOP%20-%20The%20Final%20Mission%20v2.0%20%20extended_20160330.rar
https://www.quaddicted.com/webarchive/www.quaketastic.com/files/single_player/mods/AOP%20-%20The%20Final%20Mission%20v2.0%20%20extended_20160330.rar
AOP%20-%20The%20Final%20Mission%20v2.0%20%20separate%20lightning-gun-enforcer%20skin.rar
http://www.quaketastic.com/files/models/AOP%20-%20The%20Final%20Mission%20v2.0%20%20separate%20lightning-gun-enforcer%20skin.rar
https://www.quaddicted.com/webarchive/www.quaketastic.com/files/models/AOP%20-%20The%20Final%20Mission%20v2.0%20%20separate%20lightning-gun-enforcer%20skin.rar
AOP%20-%20The%20Final%20Mission%20v2.0__extended_20140623.zip
http://www.quaketastic.com/files/single_player/mods/AOP%20-%20The%20Final%20Mission%20v2.0__extended_20140623.zip
https://www.quaddicted.com/webarchive/www.quaketastic.com/files/single_player/mods/AOP%20-%20The%20Final%20Mission%20v2.0__extended_20140623.zip
AOP-The_Final_Mission_v2.0.rar
http://quakeone.com/aop/AOP-The_Final_Mission_v2.0.rar
http://www.quaketerminus.com/mods/AOP-The_Final_Mission_v2.0.rar
Files I cannot get ahold of include aop_demo_installer.hqx, abyss-x86-full.exe, abyss-x86-v100.exe, abyss-x86-up110.exe and abyss-x86-up110.zip.
Versions of the mod appear on some Quake add on cds:
- Quake II Complete Gamer Add-on
/AOP/
- Ultimate Quake!
/aop/
- Diggin for old quake files circa 2022.
- file request (aop multiple archives) circa 2019.
- Looking for old Abyss of Pandemonium files cica 2017.