Mods / Piston Platform

• TThe Order of Things 03 (Coop)by Invocare_Ignisi hope you have fun199.8k downloadsupdated 11 y ago
• CChainbuilderby Nortisop029Congratulations! It's time for you to test our new Rube Goldberg machine! Some assembly required. Batteries not included. Check out my other test chambers here: Oct. 13 update: Some modifications to remove a recently discovered exploit.176.3k downloadsupdated 14 y ago
• TTracerby MeviousCube levetation and descension techniques152.2k downloadsupdated 12 y ago
• CCubes of Destinyby 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.147.8k downloadsupdated 14 y ago
• 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
• PPatienceby MeviousCoordination is key. Unfortunately there's only one of you.115.4k downloadsupdated 14 y ago
• TThe Order of Things 04 (Coop)by Invocare_Ignisif you have suggestions leave comments. Have Fun -InvocareIgnis115.0k downloadsupdated 9 y ago
• TThis is Teamwork 5by DrFauliThe entire map-series has been reworked and updated on 29. June 2017 [7 maps] This map uses a funnel and blue gel to create some awesome teamwork. estimated difficulty: easy/medium Don't worry if you lose your portals or die by accident: You only have to solve each room once and then you can reac...110.4k downloadsupdated 9 y ago
• TThe Order of Things 01 (Coop)by Invocare_Ignismy first coop map. i hope it is challenging enough. if you have suggestions leave comments. Have Fun -InvocareIgnis109.4k downloadsupdated 11 y ago
• HHakuna Matata 5by DrFauliHakuna Matata - "no worries"; - estimated difficulty: medium - no ninja skills needed - you do not have to die to solve this map - if you lose your portals, it is easy to get them back Let me know what you think about this map. It is my personal favorite in this map-series. if you enjoyed playing...98.0k downloadsupdated 12 y ago
• RRendezvousby MeviousAdvanced funnels and their application to not-letting-you-through-stuff94.8k downloadsupdated 13 y ago
• TThe Art of Cooperation IIby daveyvandyYou must not cooperate.73.4k downloadsupdated 13 y ago
• EExcellent Partnership 3 - Back and Forthby wildgoosespeederNot a light bridge puzzle this time. Fixed finnicky-ness.73.4k downloadsupdated 12 y ago
• DDGU-Dont Give Up - The Towerby SaturasFind they way up Difficult: Easy72.7k downloadsupdated 13 y ago
• CCo-Op: Six extra seconds of trustby AKS"As our data clearly shows, humans cannot be trusted." -Cave Johnson Lets see if your partner is as reliable as you think they are. Update (2012-10-30): The main chamber has been modified so that it can now manufacture two linked challenges at once. The enrichment center is pleased to present thi...65.1k downloadsupdated 14 y ago
• TThis is Teamwork 1by DrFauliThe entire map-series has been reworked and updated on 29. June 2017 [7 maps] This map uses a funnel and blue gel to create some awesome teamwork. estimated difficulty: easy/medium Don't worry if you lose your portals or die by accident: You only have to solve each room once and then you can reac...64.8k downloadsupdated 9 y ago
• Mmdm 002by DrFaulimedium difficulty coop map; 002 if you enjoyed playing my maps, think about supporting me:63.8k downloadsupdated 13 y ago
• FFriendship is magic 14by LazyCoal62.5k downloadsupdated 13 y ago
• HHakuna Matata 2by DrFauliHakuna Matata - "no worries"; - estimated difficulty: medium - no ninja skills needed - you do not have to die to solve this map - if you lose your portals, it is easy to get them back if you enjoyed playing my maps, think about supporting me:62.1k downloadsupdated 12 y ago
• TThe Order of Things 05 (Coop)by Invocare_IgnisHave Fun, If you find any exploits or bugs leave comments. Suggestions are always welcome -InvocareIgnis59.9k downloadsupdated 11 y ago
• TThis is Teamwork 6by DrFauliThe entire map-series has been reworked and updated on 29. June 2017 [7 maps] This map uses both funnels and the edgeless safety cube to create some awesome teamwork. The 2nd room features a companion cube shuffle puzzle. estimated difficulty: medium Don't worry if you lose your portals or die by...59.7k downloadsupdated 9 y ago
• TThe Climbby oheyitsmattOne large room split into four levels. Find your way from the bottom to the top. My first published Test Chamber - I hope you enjoy! *Edited to eliminate an oversight that allowed the user to skip a portion of the puzzle. Thanks to iSmile02 for the help here!58.0k downloadsupdated 10 y ago
• TThis is Teamwork 7by DrFauliThe entire map-series has been reworked and updated on 29. June 2017 [7 maps] This map uses a companion cube shuffle puzzle to create some awesome teamwork. estimated difficulty: medium Don't worry if you lose your portals or die by accident: You only have to solve each room once and then you can...53.6k downloadsupdated 9 y ago
• TThe Order of Things 14 (Coop)by Invocare_IgnisAhoi lads, 13 and 14 are out now, sadly i had to cut this map down a bit (too many items to publish) which suxxx, nontheless i hope you enjoy this map. if you encounter any bugs, exploits or have any other suggestions feel free to leave a comment. greets -Invocare_Ignis48.4k downloadsupdated 11 y ago
• TTimeTOdie 60 - Up and down (Advanced Series)by TimeTOdieWelcome to my 60th chamber and my sixth special chamber. Every tenth chamber of my TimeTOdie series is a special chamber. It is an avanced chamber. Check out the four puzzles and find a way out.48.2k downloadsupdated 12 y ago
• PPermutationsby MananTheMoon3 separate rooms, 3 separate cubes, and 3 separate switches. Seems simple enough, right? Well, these rooms are a little bit more intertwined then you think. You may even have to get some cubes more than once. And remember, as with all permutuations, Order Matters! Let the light guide you if you'r...48.1k downloadsupdated 14 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
• HHakuna Matata 4by DrFauliHakuna Matata - "no worries"; - estimated difficulty: medium - no ninja skills needed - you do not have to die to solve this map - if you lose your portals, it is easy to get them back Information: - The Sphere Cannon was created by me (DrFauli). - The SteamUser TeamSpen210 has edited and improve...44.4k downloadsupdated 12 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
• PPortal is the best (cooperative no. 10 )by Robo SK.43.5k downloadsupdated 11 y ago
• FFriendship is magic 35by LazyCoal43.2k downloadsupdated 14 y ago
• FFriendship is magic 2by LazyCoal42.2k downloadsupdated 14 y ago
• HHow to Stump 2 Robotsby daveyvandyYou are not even trying. Robots were not programmed to try.41.5k downloadsupdated 11 y ago
• Mmdm 004by DrFaulimedium difficulty coop map; 004 if you enjoyed playing my maps, think about supporting me:41.2k downloadsupdated 13 y ago
• FFriendship is magic 6by LazyCoal39.3k downloadsupdated 14 y ago
• TThere's no I in team, 01by LPChipThis is my first co-op map, and the first of a series. You will be required to solve this as a team. The map is divided into 3 sections with a different kind of gameplay. Beating each section will give access to a corridor getting there faster in case you'd be smart enough to die. Enjoy, and if y...39.0k downloadsupdated 13 y ago
• AAdventure CO-OPby XistezCheck out my other test chambers!38.0k downloadsupdated 14 y ago
• FFriendship is magic 39by LazyCoal37.2k downloadsupdated 14 y ago
• FFriendship is magic 33by LazyCoal37.0k downloadsupdated 14 y ago
• FFriendship is magic 11by LazyCoal35.8k downloadsupdated 14 y ago
• FFornute Buttonsby LuixlsSeems Hard. It's Hard. This test requires cooperation. Good Luck. Difficulty: Intermedium35.5k 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
• CCube Jugglersby TarloA co-op puzzle map. Two robots, trapped in a test chamber... ... Separated by a giant glass wall, sharing a finite amount of cubes... ... And in desperate need... ... Of some jolly cooporation!34.3k downloadsupdated 10 y ago
• BBeyond Imagination 2by DrFauliBeyond Imagination - think outside of the box! What might look like a paradox at first, can be solved in another more complex way. - estimated difficulty: hard (logic based puzzle) - estimated blindrun playtime: 45 minutes (or more) - no ninja skills and no strafe jumps needed - no bugusing, no g...34.0k downloadsupdated 11 y ago
• FFriendship is magic 16by LazyCoal33.8k downloadsupdated 14 y ago
• FFriendship is magic 15by LazyCoal33.5k downloadsupdated 14 y ago

870 piston 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.