Mods / Custom Visuals

• CCOSMOGONY - Episode 1by DR3y85.7k downloadsupdated 13 y ago
• EEnigma Protocol | Chapter 3by Night MelonSet shortly after the events of the Cooperative Testing Initiative, a test subject wakes to GLaDOS' newest testing track. Make your way through 22 brand new test chambers in this map pack. Chamber 09 inspired by Ben77's Reflection85.4k downloadsupdated 6 y ago
• MMoonbase Luna-C 04: Newton's First Lawby CatsyGreetings, test subject, and welcome back to the Aperture Science Volunteer Employee Gravity Liberation Testing Program. If you are reading this, the Luna-C Enrichment Center assumes that you have successfully navigated the first three chambers of this program. If you have not, you should immedia...83.5k downloadsupdated 14 y ago
• EEnigma Protocol | Chapter 5by Night MelonSet shortly after the events of the Cooperative Testing Initiative, a test subject wakes to GLaDOS' newest testing track. Make your way through 22 brand new test chambers in this map pack.81.9k downloadsupdated 6 y ago
• EEnigma Protocol | Chapter 4by Night MelonSet shortly after the events of the Cooperative Testing Initiative, a test subject wakes to GLaDOS' newest testing track. Make your way through 22 brand new test chambers in this map pack.81.0k downloadsupdated 6 y ago
• BBroken Neuronsby LateLJShort map with 2 chambers. Featuring light bridge, funnel, faith plate and deadly lasers! Also GlaDOS. 1.01 released 24.1.2013: *Cannot get stuck if you leave the cube on the button80.7k downloadsupdated 14 y ago
• CCOSMOGONY - Episode 4by DR3y79.6k downloadsupdated 13 y ago
• EEnigma Protocol | Chapter 7by Night MelonSet shortly after the events of the Cooperative Testing Initiative, a test subject wakes to GLaDOS' newest testing track. Make your way through 22 brand new test chambers in this map pack.79.5k downloadsupdated 6 y ago
• QQuantum Entanglement Iby rendermouseThis is the introduction to the new Quantum Entanglement cubes. A love story of two companions, forever separated by destiny. Play the next episode! Quantum Entanglement II is now available to play! Subscribe here:78.2k downloadsupdated 15 y ago
• CCOSMOGONY - Episode 2by DR3y78.2k downloadsupdated 13 y ago
• EEnigma Protocol | Chapter 6by Night MelonSet shortly after the events of the Cooperative Testing Initiative, a test subject wakes to GLaDOS' newest testing track. Make your way through 22 brand new test chambers in this map pack. Chamber 16 inspired by AmnDragon's Cubi.77.7k downloadsupdated 6 y ago
• CCOSMOGONY - Episode 6by DR3y77.1k downloadsupdated 13 y ago
• EElectrophobia (Part 3)by MeviousPart 3 of the series of cooperative testing spheres.76.5k downloadsupdated 14 y ago
• CCOSMOGONY - Episode 3by DR3y75.8k downloadsupdated 13 y ago
• PPrison Escape: Act 1 (Re-Loaded)by blinkpenI fixed the flaws thats were in the original version of this map and while I was at it, I made it look all pretty too by adding objects and changing textures. I've changed the puzzle a little too. Now tell me if you can bypass any of it or not.73.6k downloadsupdated 14 y ago
• EEnigma Protocol | Chapter 8by Night MelonSet shortly after the events of the Cooperative Testing Initiative, a test subject wakes to GLaDOS' newest testing track. Make your way through 22 brand new test chambers in this map pack.73.0k downloadsupdated 5 y ago
• CCOSMOGONY - Episode 5by DR3y72.7k downloadsupdated 13 y ago
• PPrison Escape: Act 2 (RE-LOADED)by blinkpenI didnt like the original Act 2 of the PE series so I completely made a new level. Enjoy.72.0k downloadsupdated 14 y ago
• AAbove Aperture - Part 1by La Petite MagicienneSTORY : --------------- You start in a test hall of an unknow sector of Aperture Center. Find what is going on here ! PART 1 : ---------------- This part contains 3 open sky testing chambers. You will have to use lightbridge, faith plates, lasers and your mind to solve this outdoor puzzles. BONUS...66.6k downloadsupdated 12 y ago
• AAbove Aperture - Part 3by La Petite MagicienneSTORY : ------------- You continue your journey in the Aperture Center. Try to escape that place ! PART 3 : -------------- This part contains two open sky testing chambers and a short escape area. You will have to use laser lightbridge and your mind to solve this outdoor puzzles. BONUS : --------...66.4k downloadsupdated 12 y ago
• IIncreaseby bhounIncrease Difficulty : normal Making time : it took me while 2days developed by Bhoun 13-05-2020 : VU and edit some logic66.2k downloadsupdated 6 y ago
• MMoonbase Luna-C 05: Nature Abhorsby CatsyWelcome, , to the Aperture Science Volunteer Employee Gravity Liberation Testing Program. If you have just arrived at the Enrichment Center's Lunar Annex C from our offices on Earth, you may be experiencing disorientation, nausea, or resentment towards your coworkers who are not here with you to...66.1k downloadsupdated 14 y ago
• PPrison Escape: Act 3 (RE-LOADED)by blinkpenThe third installment of the re-designed Prison Escape Series. Fixed the problem where people could fling to the exit by more than one way. Added some new stuff. Made it better.63.7k downloadsupdated 14 y ago
• PPrison Escape: Act 5 (RE-LOADED)by blinkpenI made a new level for this one as well.62.0k downloadsupdated 14 y ago
• AAbove Aperture - Part 2by La Petite MagicienneSTORY : ------------- You continue your journey in that unknow sector of Aperture Center. PART 2 : -------------- This part contains a half open sky testing chambers. You will have to use lightbridge and your mind to solve this puzzles. BONUS : ---------------- A secret song is hidden in the leve...62.0k downloadsupdated 12 y ago
• PPrison Escape: Act 4 (RE-LOADED)by blinkpenI made a slight change with this puzzle and now its better plus added some textures and such. Hope you enjoy this version of the installment. Thanks again. Keep Testing.61.2k downloadsupdated 14 y ago
• SSolid_fieldby pythonzenIntroducing the solid field.56.6k downloadsupdated 12 y ago
• DDiverse Remasteredby SkairulAfter a long hiatus and having to juggle with many things irl, I've finally been able to sit down and create another map inspired by my first ever published Hammer map, Diverse. A simple set of 3 tests utilising the unused Pneumatic Diversity Vent. Enjoy! Update 201019: WOW, over 10,000 visitors...55.5k downloadsupdated 7 y ago
• SSendificate part 1by HMWA new invention, straight from the Science department of Aperture Science! This is the start of a series revolving around a new testing element called the "sendificator". The difficulty is medium/hard; no ninja-skills required. ==> Next part: "A Beam Too Far". #twp This map is also released at Th...55.1k downloadsupdated 12 y ago
• Cchickentest 2by ChickenMobileMy second coop map: half made in Alien Swarm SDK, other in P2AT. Have fun!54.5k downloadsupdated 14 y ago
• WWithout Portalgun: Turret Domino (c2m2)by Loo-KinThis map includes some simple tests with turrets. One note: You haven't got portalgun. All portals can be opened when you push special buttons. But it doesn't mean that this map is boring and total platforming. This map was created to prove puzzles without portalgun can be interesting and even or...54.0k downloadsupdated 15 y ago
• SSpare Map Pack - Part 1/3by ThatGreekGuyFIrst map has 2 test chambers that include lightbridges and a lot of flinging. The chambers are not particularly didficult but you have to think diffirently. It also has 2 small secrets. Have fun and leave a comment. Make sure to play the next two parts!! If you like the map and think i deserve a...53.0k downloadsupdated 12 y ago
• SSpare Map Pack - Part 2/3by ThatGreekGuySecond map has 2 test chambers that include funnels and lightbridges. This one is harder and requires actual thinking to solve. Only one secret in this one. Have fun and leave a comment. Please record your playthrough i you can! Thanks. If you like the map and think i deserve a penny you can help...52.9k downloadsupdated 13 y ago
• SShare It!by zivi7A small chamber in which you'll need to share the test elements with your coop partner to complete the test. Difficulty: easy to medium. #twp52.8k downloadsupdated 14 y ago
• IInto the Multiverse Part 1 REUPLOADby Misty NullTHIS IS NOT MINE. Since the mod was deleted, I have reuploaded it so people can still play it. If the original creator wants me to take this down, contact me immediately. ALL CREDIT GOES TO BLAPPATURE EXECUTIVE NO. 150.8k downloadsupdated 8 y ago
• CConnectionby BEN 77easy / medium difficulty Solution test--->50.4k downloadsupdated 11 y ago
• PPenrose 01: Introductory Scienceby StratosTesting focus: Surface Division Fields Difficulty: Easy Expected play time: Not that long Version: 1.2 20.000+ Total Unique Subscribers on the map! Thank you to everyone who played it! :D This first map is extremely easy, it's really just an introduction to my way of using world portals. They go...49.3k downloadsupdated 15 y ago
• EEchoesby pythonzenUnderground themed map with solid fields and faith plates. The faith plate model was originally made by Marlovious from TWP, then modified slightly49.1k downloadsupdated 13 y ago
• AAbove Aperture - Part 4by La Petite MagicienneSTORY : --------------- You continue your journey through the destroyed and deserted Aperture Center, on the surface. PART 4 : ---------------- This part contains 3 open sky testing chambers. You will mainly have to use pneumatic diversity vent. Two directions are used: propultion and aspiration....48.1k downloadsupdated 12 y ago
• IInto the Multiverse Part 2 REUPLOADby Misty NullTHIS IS NOT MINE. Since the mod was deleted, I have reuploaded it so people can still play it. If the original creator wants me to take this down, contact me immediately. ALL CREDIT GOES TO BLAPPATURE EXECUTIVE NO. 147.5k downloadsupdated 8 y ago
• IInto the Multiverse Part 3 REUPLOADby Misty NullTHIS IS NOT MINE. Since the mod was deleted, I have reuploaded it so people can still play it. If the original creator wants me to take this down, contact me immediately. ALL CREDIT GOES TO BLAPPATURE EXECUTIVE NO. 146.8k downloadsupdated 8 y ago
• PPenrose 02: Room Dislocation Associationby StratosTesting focus: Surface Division Fields Difficulty: Easy / easy-medium Expected play time: Not that long Version: 1.2 Please do not start playing here, play Penrose 01 first for a better understanding of the concept. This second map is not that difficult, but will hopefully stimulate the brain jus...46.5k downloadsupdated 15 y ago
• DDaMaGepy #4: cube trainingby DaMaGepyA large medium-difficulty map to teach some cube trick. 9 testchamber plus an optional hidden test with some bts exploration. Since its a training map, there are hint buttons at the entrance of each room in case you need help. Don't spoil your fun, only use them if you are stuck for a while and d...46.0k downloadsupdated 14 y ago
• IInto the Multiverse Part 4 REUPLOADby Misty NullTHIS IS NOT MINE. Since the mod was deleted, I have reuploaded it so people can still play it. If the original creator wants me to take this down, contact me immediately. ALL CREDIT GOES TO BLAPPATURE EXECUTIVE NO. 145.6k downloadsupdated 8 y ago
• RRadionby SkyferretA Hammer map involving mostly lasers and laser redirection. There are also piston platforms. Easy to medium difficulty. This is the first clean style map I've made using the Hammer editor. I've added a bit of the Portal 1 theme blended in with it.43.9k downloadsupdated 11 y ago
• WWheatley's Reprisal [Part 2]by SkyferretContinue on. Why does Wheatley think little metal boxes with legs have any intelligence what so ever. They don't. Just don't fall as you work your way through. there's some deep pits. Quite bottomless. Please play Part 1 first. Or go to the Collection for all 6 maps.42.9k downloadsupdated 9 y ago
• IInto the Multiverse Part 7 REUPLOADby Misty NullTHIS IS NOT MINE. Since the mod was deleted, I have reuploaded it so people can still play it. If the original creator wants me to take this down, contact me immediately. ALL CREDIT GOES TO BLAPPATURE EXECUTIVE NO. 1 Please stop begging me to release part 8, I do not have part 8.42.7k downloadsupdated 8 y ago
• SStasis - Episode 1by DR3ySomewhere in the bowels of Aperture, lies hundreds of test subjects, waiting for their entire life to be awaken to do some science. The music use din this map was originally created by Russel Shaw. Update June 7, 2012 -Bug fixes.42.6k downloadsupdated 14 y ago

1.7k custom visuals mods, most downloaded first. Each one has its own page here with what it needs to run and where its author publishes it; the files themselves stay with the author and are never re-hosted on this site.