Sexual ContentAdventureRPGStrategy
Mary Skelter: Nightmares
Give it 35 hours
Gets good by 35h then rated almost like by veterans
Fully opens up by 60h rated like by long-time players
Started playing 83% of owners
Steam reviews 83% positive of 598
What the data shows
- In the first 2 hours 1 in 3 reviews are negative (33%); after 60h it's 1 in 13 (8%).
- Fully opens up by hour 60.
- Few early reviews, so this is a rough estimate.
- 83% of owners got the first achievement.
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 599 Steam reviews in every language. Median playtime in a sample of 296 reviews: 42.5h for positive, 16.3h 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 (82.7% 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 (34)
- Awakening Entered Massacre mode for the first time. 100%
- Gluttony Satisfied the Jail's Hunger. 71%
- Lust Satisfied the Jail's Libido. 67%
- Liberated the City Streets! Cleared the City Streets area. 63%
- Promising Researcher Filled the Jail Creature Manual with 10 creatures. 62%
- Adventurer Entered a hidden floor. 60%
- Sloth Satisfied the Jail's Sleep. 59%
- The Jail Matures Matured a floor. 53%
- Rampage Entered Blood Skelter mode for the first time. 50%
- Liberated District Advisor Cleared 10 work orders. 46%
- Liberated the Graveyard! Cleared the Graveyard area. 43%
- Purity Conducted Purge for the first time. 39%
- Self-Sacrifice Protected the heroine 100 times. 37%
- Together As One Raised one heroine's affection to max level. 33%
- Greed Collected 100,000 Gold. 32%
- Liberated Downtown! Cleared the Downtown area. 28%
- Liberated the Temple! Cleared the Temple area. 28%
- Liberated the Dorm! Cleared the Dorm area. 22%
- Liberated the Waterside! Cleared the Waterside area. 21%
- Endless Possibilities Unlocked all of the heroines' jobs. 20%
- Murderer Defeated all Nightmares outside the Jail. 19%
- Liberated the Station Grounds! Cleared the Station Grounds area. 19%
- Unleashing Its Power Gained the Blood ability Mary Reverser. 19%
- Greatest Ally? Hameln joined your party. 17%
- You Can Count on Me Cleared 50% of the work orders. 16%
- Sweet, Sweet Freedom Unlocked the Good Ending. 15%
- Liberated the Jail! Cleared the Jail Tower. 15%
- Understanding One Another Raised all heroines' affection to max level. 14%
- Established Biologist Complete 80% of the Jail Creature Manual. 14%
- Going Back to Jail Unlocked the Bad Ending. 12%
- Blood Impulse Activated a Blood Soul Skill 100 times. 9.3%
- On a New Level Blood Devolution reached Level 80. 7.9%
- Liberated the Underground Jail! Cleared the Underground Jail area. 6.5%
- Escapee Obtained all Trophies! 5.3%
Steam page Updated: 2026-10-21.