The Brookhaven Experiment

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 878 Steam reviews in every language. Median playtime in a sample of 300 reviews: 4.3h for positive, 0.5h 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 (68.4% of owners), so people who bought the game and never launched it don't count.

Story milestones aren't labeled yet; all achievements are listed below.

All achievements (20)

• C-Note Kill 100 enemies. 100%
• Abandoned Factory Survive the first campaign level. 87%
• Town Square Survive the second campaign level. 61%
• G-Note Kill 1000 enemies. 59%
• Quad Damage Kill four enemies at once with an explosive. 43%
• Laboratory Basement Survive the third campaign level. 32%
• Observatory Survive the fourth campaign level. 21%
• Tubthumping Survive ten waves in a survival map. 14%
• Storm Drain Survive the fifth campaign level. 12%
• I Like The Night Life, Baby Finish a nighttime campaign level without turning on the flashlight. 8.5%
• Reservoir Survive the sixth campaign level. 8.0%
• Bridge Survive the seventh campaign level. 6.9%
• Sangamon Forest Survive the eight campaign level. 6.0%
• To The Teeth Acquire all guns and upgrades in campaign mode. 5.3%
• Peoria Caverns Survive the ninth campaign level. 4.5%
• Radio Tower Survive the final campaign level. 4.2%
• Smile, You Son of a... Blow the head off of something large and toothy. 4.1%
• Fireworks Factory Acquire 200 throwables in campaign mode. 3.2%
• Overkill Acquire all guns and upgrades in a survival game. 2.0%
• Ammo Conservation Survive a nighttime campaign level using only the knife. 0.6%