Mods / Rail Platform

• BButtons, Elevators and Gooby DonyelBe sure to make use of the 'tab' function in which you can see what your partner sees. Keep in mind in cooperative chambers you must employ two sets of portals. Teamwork and communication is key to completing any cooperative test chamber.127.3k downloadsupdated 14 y ago
• EExpendable Human Launch Vehicleby ceski"This is the longest and largest custom map I've played. None of the challenges were too taxing but they were all logical and interesting. What impressed me most is how the player's path twists through the space so you keep getting close to the exit (or entrance) and then moving away again." - wh...121.0k downloadsupdated 11 y ago
• PPyrron_Coop.029 : Barad Durby PyrronUne dangereuse montée jusqu'au globe oculaire le plus enflammé du Medieval Fantasy. A dangereous climp to the most inflamed occulus rift of the Medieval Fantasy.85.5k downloadsupdated 12 y ago
• DDuo Puzzle #3by kbkMy third two-player puzzle. This one is a bit trickier then the others!78.9k downloadsupdated 12 y ago
• DDGU-Dont Give Up - The Towerby SaturasFind they way up Difficult: Easy72.7k downloadsupdated 13 y ago
• 11960by SpectroThree main test chambers with multi-step solutions. If you liked this test, try the revised edition!46.0k downloadsupdated 14 y ago
• TThe Order of Things 10 (Coop)by Invocare_IgnisAfter quite some time i finally got to rework this map. as always: if you find any bugs or exploits feel free to leave comments. suggestions are always welcome as well hope you have fun -InvocareIgnis44.2k downloadsupdated 11 y ago
• IImprobable 1by bluemonkey43.7k downloadsupdated 7 y ago
• MMulti-Purpose Cubesby The Bi-BastardThis is a follow-up to my other test, Strenuous. After hearing that my last test was too easy, I did my best to make a harder, more challenging test. This one involves 3 cubes, and a few puzzles. I hope you guys enjoy it! Here's a link to sequel, for all those smarties out there >:P38.3k downloadsupdated 9 y ago
• FFrancks_ COOP Sessions #2 - Going Upby Francks_Teamwork to go up No deaths are necessary Edit(18/05/21): Unintended solution fixed37.9k downloadsupdated 5 y ago
• TThe Mazeby AstusHave fun and good luck!36.1k downloadsupdated 14 y ago
• TThe Art of Cooperation IVby daveyvandyIf there were twice as many of you we would have four times the lack of brain cells in this chamber.35.1k downloadsupdated 13 y ago
• QQuality Control: Buttonsby HugoBDesignerWelcome to Aperture Science's Quality Control Testing Initiative. Today, you'll be testing our Heavy Duty Super-colliding Super-buttons. Who's ready to do some quality checking? Update 1: Added a pedestal button to the laser relay that temporarily turns it off, and removed ceiling portalable wall...29.7k downloadsupdated 10 y ago
• WWicked Towerby TomCatFortTo the top, step by step. Don't be afraid! It's much easier than it looks.27.8k downloadsupdated 12 y ago
• VVertigoby MotherDescend deep into the chamber and return with the companion cube.27.4k downloadsupdated 15 y ago
• DDivided Connection [CO-OP]by GCVosHelp each other progress through a number of challenges you can only complete if you work together. This Chamber will test your Portal Gun and platforming skills. After completing each challenge, you can open up shortcuts so you can respawn safely without losing progress. I would have liked addin...26.2k downloadsupdated 9 y ago
• TThe Laser Crossby January 2035I just can't make maps without funnels...22.7k downloadsupdated 14 y ago
• NNon-Euclidian Tests - 02by ProxyAnother unique test chamber21.8k downloadsupdated 4 y ago
• AA Two-Bot Adventureby JawzorA Co-operative mini adventure of puzzling rooms and a few suprises.20.8k downloadsupdated 14 y ago
• FFrancks_ COOP Sessions #5 - The Pool & The Bridgeby Francks_Teamwork to cross the pool & the bridge No deaths are necessary20.1k downloadsupdated 6 y ago
• TThe Art of Cooperationby daveyvandyDon't move. Cooperate plus cognate.19.4k downloadsupdated 13 y ago
• AAperture Science Arcade Styleby ZamrenomNow you know what it feels like to be that little guy jumping around on that other computer game. Except, of course, you have a portal gun.18.9k downloadsupdated 13 y ago
• MMind games | Part 7by NOFTEX18.1k downloadsupdated 9 y ago
• SSoulStealer's Level 6by SoulStealerSoulStealer's Level 6: Castle Crashing Version: 1.0118.0k downloadsupdated 12 y ago
• FFrancks_ COOP Sessions #24 -The Corridor ( Step I )by Francks_Teamwork to go through the corridor's first step No deaths are necessary17.7k downloadsupdated 6 y ago
• FFrancks_ COOP Sessions # 6 - Going Downby Francks_Teamwork to go down No deaths are necessary17.7k downloadsupdated 6 y ago
• YYou and your Companion Cube!by Poulet repasCategory: Puzzle Difficulty: Easy-Medium For: One player (and his/her Companion Cube) Time: A few minutes This is a super cool Companion Cube-type puzzle. You have to make it through all the chamber with your companion cube. ENJOY :D16.6k downloadsupdated 13 y ago
• TThe Art of Cooperation IIIby daveyvandyGreat trilogies come in threes. You are only a duo.16.3k downloadsupdated 13 y ago
• FFrancks_ COOP Sessions #3 - One 4 Eachby Francks_Teamwork to escape No deaths are necessary Edit(09/09/20): New stage added, rebuild some design and minor bugs fixed Edit 2(29/09/20): Fixed some issues at bottom part Edit 3(30/11/20): Fixed a softblock (again) at the bottom part15.0k downloadsupdated 6 y ago
• SStasisby MeviousFair warning: This chamber requires a gimmicky trick to solve. Let me what you think.14.8k downloadsupdated 14 y ago
• BBhop Practiceby a baby13.6k downloadsupdated 14 y ago
• CCoop initiative #1by NecromanticA map created with much care and detail. Enjoy! Players must help eachother out to get through the challenges ahead. Coop initiative series - Coop initiative. - Coop initiative #213.6k downloadsupdated 14 y ago
• [[PeTI COOP] Sunbury Chambers 27 (HARD!)by BierPizzaChipsDifferent ways, same target. Difficulty: Hard ------------------------ #BeeMod #HMW #BPC This map can be run WITHOUT having any mod installed.13.4k downloadsupdated 13 y ago
• FFrancks_ COOP Sessions #7 - The Cubesby Francks_Teamwork to get the cubes No deaths are necessary Edit(15/09/20): minor bugs fixed Edit 2(02/12/20): softblock fixed13.2k downloadsupdated 6 y ago
• FFranki344 puzzleby Franuna partida creada para jugar con Darklink12.8k downloadsupdated 14 y ago
• FFrancks_ COOP Sessions #10 - The Pool & The Roomsby Francks_Teamwork to go through the pool and the rooms No deaths are necessary12.7k downloadsupdated 6 y ago
• FFrancks_ COOP Sessions #4 - Going Forwardsby Francks_Teamwork to go forwards No deaths are necessary Edit(15/10/20) : Fixed some softlocks in parts 2 and 3 Edit 2(18/05/21) : Removed necessary death Edit 3(06/11/21) : Removed softblock in last room12.7k downloadsupdated 5 y ago
• PPyrron_Coop.014 : La Citerne / The Cisternby PyrronBaignade déconseillée swimming not advisable11.9k downloadsupdated 12 y ago
• HHappy Birthday, Portal 2!by ellaIn honor of the 2nd anniversary of Portal 2, I have created this special, somewhat easy test chamber. With real confetti this time.11.7k downloadsupdated 14 y ago
• TT.L.W.A. (The Long Way Around) 3by Agriden_ArtsThe third installment of The Long Way Around test chambers, now being abbreviated to T.L.W.A. Okay, this is involved. You'll be confused, then after five minutes you'll understand what you need to do. Or not. It depends on how creatively you can think. Also, if you find anything I can improve upo...11.3k downloadsupdated 11 y ago
• IIntellect not Included 6by Lcjacobpd*Patched* Enjoy! =D11.2k downloadsupdated 9 y ago
• 33 Cubes, 2 Robots, 1 Testby SBDTGrab the cubes to open up the way to the finish. This is my first coop map to anybody who wants to download this, and if you do please feel free to post what you think may be exploits in the comments section. Thanks :)11.0k downloadsupdated 13 y ago
• OOriginal Portal: Test Chamber 13by Fat Ninja WalrusThis one was a mess to make. The measurements were off so much all around the chamber that eventually I gave up trying to preserve proportions and focused on just making it play right. I did manage to solve part of my proportion problem by using a new technique for the angled edges, which I had p...10.8k downloadsupdated 15 y ago
• FFrancks_ COOP Sessions #20 - The Twentiethby Francks_Teamwork to complete my twentieth test chamber No deaths are necessary10.7k downloadsupdated 6 y ago
• FFrancks_ COOP Sessions #25 -The Corridor ( Step II )by Francks_Teamwork to go through the corridor's second step No deaths are necessary10.7k downloadsupdated 6 y ago
• LLp's Laserfield nightmareby 🍪 AnnaLaserfields are your most dangerous enemy here. Don't touch them, they're lethal... F6 is your quicksave, he's your friend. Good luck and have fun!10.5k downloadsupdated 15 y ago
• TTrustby Davosaurus''Cave Johnson here. Fact: The key to any successful cooperative test is trust. And as our data clearly shows, humans cannot be trusted. The solution: robots!'' *Insert bad robots here* ''Then fire the guys who made those robots and build better robots. Then run those robots through a regimen of...10.4k downloadsupdated 14 y ago
• OOriginal Portal: Test Chamber 19by Fat Ninja WalrusMuch simpler than the last few chambers. I opted to use excursion funnels for the final bit, since the platforms were clumsy and didn't give the feeling of being helplessly drawn towards your doom. -FNW *revisions Using BEEMOD, added in some much needed checkpoints, and switched out the standard...10.0k downloadsupdated 12 y ago

284 rail platform 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.