Bridge Constructor Portal
Hooks you almost right away
What the data shows
- In the first 2 hours 1 in 6 reviews are negative (16%); after 5h it's 1 in 16 (6%).
- Fully opens up by hour 3.
- The opening is criticised less than in 80% of games we track.
- 8% of players who start reach the ending.
- The biggest drop-off is between “Extended Testing Opportunity” (Finish every test chamber in Chapter 1) and “Food and Artificial Sunlight” (Finish every test chamber in Chapter 2): from 100% to 50% of starters.
- Only 58% of owners have even the first achievement — the rest barely played.
When it gets good
Share of positive reviews by how many hours the reviewer had played when writing the review.
before it gets good opening up fully opened up
Based on all 7,638 Steam reviews in every language. Median playtime in a sample of 295 reviews: 5.2h for positive, 5.8h for negative. Almost every game is rated lower in the first 2–3 hours: that window includes refunds and quick first impressions. What matters is how deep the dip is and how fast the game recovers.
Where players quit
Share of players who started the game and reached each story milestone. 100% is the most common achievement (57.6% of owners), so people who bought the game and never launched it don't count.
- Started playing 100%
- Extended Testing Opportunity Finish every test chamber in Chapter 1 100%
- Food and Artificial Sunlight Finish every test chamber in Chapter 2 Most players quit here 50% −50
- Post-Insignificance Finish every test chamber in Chapter 3 31% −19
- Official Pre-Admittance Finish every test chamber in Chapter 4 21% −11
- Full Chief Custodian candidate Finish every test chamber in Chapter 5 13% −7
- Spectacularly Lonely Finish every test chamber in Chapter 6 8% −6
story milestone ending biggest drop-off
Story milestones were labeled by AI from achievement names and descriptions; mistakes are possible.
All achievements (26)
story milestone ending side
- Extended Testing Opportunity Finish every test chamber in Chapter 1 100%
- No Hard Feelings First turret decommissioned 94%
- Food and Artificial Sunlight Finish every test chamber in Chapter 2 50%
- 66% Loss 20 Convoys delivered 44%
- You monster. 100 Test Vehicles destroyed 37%
- Post-Insignificance Finish every test chamber in Chapter 3 31%
- For Science! 1,000 Portal Transitions 27%
- Official Pre-Admittance Finish every test chamber in Chapter 4 21%
- 66% Delivery 40 Convoys delivered 16%
- Deliverance from Non-delivery First job for the Condolence Letter Delivery Fleet provided. 15%
- Full Chief Custodian candidate Finish every test chamber in Chapter 5 13%
- Portal Deficiency Certificate 10 times tried to start a test run with an uncorrectly placed portal. 11%
- Aerial Mobility Support System Bounced 25 times on the repulsion gel with the same vehicle 11%
- Centrifugal Convoy Adjustment System Passed through the same portal 15 times 8.2%
- Spectacularly Lonely Finish every test chamber in Chapter 6 7.6%
- Condolence Letter Delivery Boom 50 test vehicles destroyed in "Portal Proficiency" 6.9%
- For More Science! 5,000 Portal Transitions 6.8%
- Entry-Exit Relay Repeater System 30 times back and forth through the same portal 6.1%
- 0% Non-Delivery 60 Convoys delivered 5.6%
- Principals of Portalability Finish every test chamber in Chapter 1 of "Portal Proficiency". 5.6%
- Convoyability 10 10 convoys delivered in the Portal Proficiency initiative 5.2%
- Advanced Tunneling Finish every test chamber in Chapter 2 of "Portal Proficiency". 4.2%
- Tunneling at Full Capacity Maximum amount of portals successfully used in a test run. 4.0%
- Convoyability 20 20 convoys delivered in the Portal Proficiency initiative 4.0%
- Profound Portal Proficiency Finish every test chamber in Chapter 3 of "Portal Proficiency". 3.6%
- Convoyability 30 30 convoys delivered in the Portal Proficiency initiative 3.5%