UNDER NIGHT IN-BIRTH II Sys:Celes
Give it 4 hours
What the data shows
- In the first 2 hours 1 in 3 reviews are negative (31%); after 10h it's 1 in 12 (8%).
- Fully opens up by hour 10.
- 50% of players who start reach the ending.
- Most players drop off before “The Final Night” (Finished Arcade Mode for the first time): only 50% of starters get there.
- Only 56% 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 2,761 Steam reviews in every language. Median playtime in a sample of 295 reviews: 12.1h for positive, 10.2h 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 (55.9% of owners), so people who bought the game and never launched it don't count.
- Started playing 100%
- The Final Night Finished Arcade Mode for the first time. Most players quit here 50% −50
story milestone ending biggest drop-off
Story milestones were labeled by AI from achievement names and descriptions; mistakes are possible.
All achievements (27)
story milestone ending side
- Seems I've Grown! Won an online match for the first time. 100%
- Let's Let Loose! Fought in an online player match for the first time. 96%
- Combo Fiend Completed eight intermediate combo challenges in Mission Mode. 86%
- The Epitome of a Warrior Completed six advanced combo challenges in Mission Mode. 68%
- This is the Void Night Fought in an online ranked match for the first time. 56%
- Combo Challenger Completed 10 beginner combo challenges in Mission Mode. 55%
- Let the Final Night Begin Completed all novice missions in Tutorial Mode. 53%
- The Final Night Finished Arcade Mode for the first time. 50%
- Newbie In-Birth Completed all beginner missions in Tutorial Mode. 39%
- A Taste of Victory Won against a CPU opponent for the first time in Versus Mode. 37%
- Full-Fledged Fighter Completed all intermediate missions in Tutorial Mode. 31%
- Traces of a Beautiful Night Purchased a website illustration for the Gallery. 30%
- SD In-Birth Purchased an SD character illustration for the Gallery. 28%
- Pixel Art Museum Purchased a design pixel artwork for the Gallery. 28%
- Study Buddy Played back Replay data. 20%
- Void Night Concerto Purchased BGM for the Gallery. 19%
- I Speak! Purchased a voice for the Gallery. 18%
- To the Abyss and Beyond Finished Arcade Mode with three characters. 17%
- Survivor Fought 10 or more battles in Survival Mode. 13%
- Scorekeeper Finished Score Attack Mode for the first time. 10%
- Winning Streak! Fought 20 or more battles in Survival Mode. 9.8%
- Eternal Aeon Finished Arcade Mode with six characters. 9.5%
- Time Attacker Finished Time Attack Mode for the first time. 6.6%
- I'm... I'm Worn Out... Fought 40 or more battles in Survival Mode. 5.9%
- High Scorer Earned over 1,000,000,000 total points in Score Attack Mode. 2.9%
- Speed Star Finished Time Attack Mode in under ten minutes with three characters. 1.8%
- UNDER NIGHT IN-BIRTH II Sys:Celes! Obtained all trophies. 1.6%