ModsBridge Constructor Portal
Bridge Constructor Portal mods
A mod changes the game itself. It needs something to load it, it may need other mods first, and it only works on the versions its author built it for.
448 mods, most downloaded first · newest update 19 Aug 2026
- TABB - Part 35by 76561198051046610Topsy Tests Since the Network went on lockdown, the Apparatus Research Towers lost all signals with the rest of Aperture Expanse. Despite this, you still have to get through this portion. Difficulty: Very Hard Hazards: Goo, Lasers, Falling, Turrets, High Energy Pellets Vehicles: 5399 downloadsupdated 7 y ago
- TABB - Part 45by 76561198051046610Field Fusion You managed to reach one of the highest points of Aperture Expanse, but little do you know, it's a gauntlet of danger, and there's death fizzlers, which are both fields combined. Can you survive this deadly gauntlet? Difficulty: Hard to Very Hard Hazards: Turrets, Goo, Death Fizzlers...391 downloadsupdated 7 y ago
- TABB - Part 34by 76561198051046610From Low To Wild You've escaped the Network right before it blew up, and you landed back into Aperture Expanse. However, this next test chamber is pretty deadly, and Aperture Expanse went on lockdown! You must hurry up before Dark Cave's security systems are transported! Difficulty: Very Hard-Ext...390 downloadsupdated 7 y ago
- For More Science!by Thomas JeffersonAfter acquiring the "For Science!" achievement, I realized the "For More Science!" achievement was 5x as many portal transfers! Inspired by "For Science Achievement Help" by Dave the Delivery Man, I set out to create a map that gave you even MORE SCIENCE! With this map, a single forklift makes it...387 downloadsupdated 8 y ago
- TABB - Part 38by 76561198051046610Acid Anarchy After managing to get through the deadly tower, you arrived at the close-by Goo-Pump Sector, which produces the goo you see in today's test chambers. Difficulty: Hard-Very Hard (Can you estimate it?) Hazards: Goo, Laser Fields Vehicles: 5387 downloadsupdated 7 y ago
- TABB - Part 40by 76561198051046610Repulsion Rapids Since you got out of the manufacturing sector, you were almost back to the main testing track. This final portion is a bit easier than the rest. Only bridges are needed. Difficulty: Easy-Medium Hazards: Goo, Turrets Vehicles: 6385 downloadsupdated 7 y ago
- speeeeeeeeeeeeeedby 76561199851295900ssssssssssssssssssssssssssssssssppppppppppppppppppppppppppppeeeeeeeeeeeeeeeeeeeeeeeeeeeeddddddddddddddd!!!!!!!!!!!!!!!!!!!!384 downloadsupdated 4 mo ago
- Art Pieceby Whitefang379 downloadsupdated 2 y ago
- dont buildby 76561199229798752373 downloadsupdated 4 y ago
- loopby Laveolus371 downloadsupdated 3 y ago
- TABB - Part 42by 76561198051046610The Pellet Games Already making it to the second test in the third stretch, this next test is really dangerous. Most of the dangers you see elsewhere are in here. Difficulty: Very Hard (Estimated by me) Hazards: Lasers, Turrets, Wild Pellets Vehicles: 4367 downloadsupdated 7 y ago
- Call it a day and stay homeby BlackHatterJust fun to watch361 downloadsupdated 4 y ago
- Portal achivementby John_Bob_Lenonewait and see339 downloadsupdated 7 y ago
- speed!!!!!by 76561199115060273337 downloadsupdated 5 y ago
- Easy Achievementsby SkyebredUnlocks the following achievements without building anything: Centrifugal Convoy Adjustment System Entry-Exit Relay Repeater System Aerial Mobility Support System No Hard Feelings For Science! For More Science!333 downloadsupdated 8 y ago
- create a big brige for 16 fork liftsby 76561199128954644create a big brige for 16 fork lifts332 downloadsupdated 3 y ago
- Wheatley: Chamber 02by CritfishWeave your way through this test chamber, but beware of turrets and intertwined paths!327 downloadsupdated 8 y ago
- achievements steam portals convoy ~3minby drodroylets play to complete portals achievements322 downloadsupdated 3 y ago
- Auto map!!!!!by NightEye318 downloadsupdated 18 mo ago
- Child's Playby CriticalThread312 downloadsupdated 8 y ago
- Infinite Cakeby wicked571Don't get caught eating cake....311 downloadsupdated 7 y ago
- Broken Down 3: Separatedby 76561198401867491You continue through abandoned chambers, while you try to bridge over big pools of goo in seperate rooms. Difficulty: 3/10 (Easy) Part 3 of my mini-series "Broken Down".301 downloadsupdated 7 y ago
- auto boss fightby accueil298 downloadsupdated 7 y ago
- GLaDOS's Madnessby dario.smilesGLaDOS has prepared yet another room for you.This time however she has designed the test chamber in a... well... an egocentrical way.297 downloadsupdated 8 y ago
- Wormholeby 76561199109419493296 downloadsupdated 6 y ago
- My First Levelby the.goosh222Really nothing else to say. It's a random collection.296 downloadsupdated 8 y ago
- Gravity is your friend!by HaasiAustriaA easy level, or not? :-) If you like it, try my other levels.294 downloadsupdated 8 y ago
- Bounce 25 Achievmentby VahidSlayerOfAllAerial Mobility Support System Bounced 25 times on the repulsion gel with the same vehicle you may need to block the end of the level so they bounce back290 downloadsupdated 8 y ago
- Call 911by Diolas911 911 911 911 911 911 911 911286 downloadsupdated 3 y ago
- 80% OF PEOPLE CAN'T BEATby nfseskimoI spent my whole Saturday making this. -- ONLY COMPLETABLE IN CONVOY MODE -- My advise: Cross the bridge when you get to it.285 downloadsupdated 6 y ago
- Simple Chamberby 76561199403307403A simple test, no that hard278 downloadsupdated 4 y ago
- portal and turret achievementsby 76561198798965344so this enough and youll have at most 6 achievements done278 downloadsupdated 7 y ago
- Freeplayby BlinckieDo whatever experiments you wanted to try that you couldn't on the official maps.277 downloadsupdated 8 y ago
- Centrifugal Convoy Adjustment Systemby MaxWillwill help to achieve276 downloadsupdated 8 y ago
- Portalsby gratheFirst map published, Im kinda new to this :/ Edit: Wow, 147 subscribers! This may not seem like much, but it's my first time getting so many subs! Thank you so much!275 downloadsupdated 8 y ago
- portals go fastby Picardmaneuver274 downloadsupdated 16 mo ago
- Ideallyby 76561199044962032Game wiht portals271 downloadsupdated 6 y ago
- The Holeby 76561198840692233Figure out how to get past THE HOLE269 downloadsupdated 4 y ago
- The Escape to the Surfaceby 76561199152292447This is my first workshop map on this game, so i would like feedback, thanks! not continuing this, but you can still see the “story” underneath STORY: your traped underground in Aperture Labortories and you have to go through Aperture's Driving Testing Initiative to escape.268 downloadsupdated 3 y ago
- Laser Loop (Easy)by CriticalThread267 downloadsupdated 3 y ago
- Flings and Bridges 01by 76561199429656791A simple test with flinging and... bridges, of course!265 downloadsupdated 2 y ago
- Easiest Levelby K3Fe(CN)6This level is no challenge for you because it is very easy.262 downloadsupdated 7 y ago
- Sevenby 76561199017645792255 downloadsupdated 5 y ago
- Old entanglementby 76561198414886211This test route was abandoned in 1999. I don't know why you need to go through this, but just go. :)254 downloadsupdated 8 y ago
- entanglementby 76561198414886211252 downloadsupdated 8 y ago
- kenetic atrtby 76561199013323638good ror reliving stress,relaxing and ASMR.(you just have to press ither drive or convoy250 downloadsupdated 4 y ago
- Bridge with Problemsby 76561199587065077I spend 5 tryes for this level. Try you too250 downloadsupdated 20 mo ago
- Trickyby Isicus ♿This is my first map, I hope you like it.249 downloadsupdated 8 y ago
448 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.