Bridge Constructor Portal (PC)

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Easy "Aerial Mobility Support System" Achievement

The achievement "Aerial Mobility Support System" is easy to achieve as soon as you reach chamber 47. Just hit "drive" without having any object placed and wait for your vehicle to bounce. Be aware of the achievement won't pop up, so you have to leave the level after you're done to get the it.

Easy "Centrifugal Convoy Adjustment System" Achievement

The achievement "Centrifugal Convoy Adjustment System" wants you to pass the same portal pair 15 times without interrupting the cycle by passing a different portal. The easiest chamber to do so is chamber 42. Just hit "drive" and wait for your vehicle to pass the portal 15 times. Be aware of this achievement won't pop up, so you have to count carefully and leave the level afterwards to get the achievement.

Easy "Entry-Exit Relay Repeater System" Achievement

The achievement "Entry-Exit Relay Repeater System" wants you to pass back and forth through the same portal pair 30 times without hitting anything - neither the ground, nor bridge elements, nor test objects. The easiest chamber to achieve this is chamber 20. Just hit the "drive" button and wait for your vehicle to pass the first portal 30 times. Be aware of the achievement won't pop up, so you have to count carefully (just spend five minutes waiting) and then leave the level to get the achievement.

Easy "For More Science!" Achievement

If you didn't pass 5000 portals in your career and want to catch up some portal passings, check out and convoy run the following chambers: Chamber 43 (112 passes in total), chamber 57 (96 passes in total), Chamber 48 (60 passes in total) or Chamber 30 (48 passes in total). Be aware of this achievement won't pop up, so you have to leave the level to eventually get it.

Various Steam Achievements

Complete the indicated task to unlock the achievement.

AchievementHow to unlock
0% Non-Delivery60 Convoys delivered.
66% Delivery40 Convoys delivered.
66% Loss20 Convoys delivered.
Advanced TunnelingFinish every test chamber in Chapter 2 of "Portal Proficiency".
Aerial Mobility Support SystemBounced 25 times on the repulsion gel with the same vehicle.
Centrifugal Convoy Adjustment SystemPassed through the same portal 15 times.
Condolence Letter Delivery Boom50 test vehicles destroyed in "Portal Proficiency".
Convoyability 1010 convoys delivered in the Portal Proficiency initiative.
Convoyability 2020 convoys delivered in the Portal Proficiency initiative.
Convoyability 3030 convoys delivered in the Portal Proficiency initiative.
Deliverance from Non-deliveryFirst job for the Condolence Letter Delivery Fleet provided.
Entry-Exit Relay Repeater System30 times back and forth through the same portal.
Extended Testing OpportunityFinish every test chamber in Chapter 1.
Food and Artificial SunlightFinish every test chamber in Chapter 2.
For More Science!5,000 Portal Transitions.
For Science!1,000 Portal Transitions.
Full Chief Custodian candidateFinish every test chamber in Chapter 5.
No Hard FeelingsFirst turret decommissioned.
Official Pre-AdmittanceFinish every test chamber in Chapter 4.
Portal Deficiency Certificate10 times tried to start a test run with an uncorrectly placed portal.
Post-InsignificanceFinish every test chamber in Chapter 3.
Principals of PortalabilityFinish every test chamber in Chapter 1 of "Portal Proficiency".
Profound Portal ProficiencyFinish every test chamber in Chapter 3 of "Portal Proficiency".
Spectacularly LonelyFinish every test chamber in Chapter 6.
Tunneling at Full CapacityMaximum amount of portals successfully used in a test run.
You monster100 Test Vehicles destroyed.