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Johnny Mystery and The Halloween Killer

Developed by
  1. Ma Ma Software
Published by
  1. Ma Ma Software
Current #42177

Ranking history

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Review history

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Price history (USD)

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On Halloween night, a young detective named Johnny Mystery comes across a girl trying to escape from the police. Then, Johnny tries to unravel an intriguing murder case that happened during a party at the Municipal Music School.


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First seen

The date the Steam store page was first publicly visible. Games typically appear at least several weeks before release, sometimes much longer, during which time they are unavailable for purchase.

The number of days in brackets shows how long before/after first review this game was first seen.

2020-06-08 (-13 days)
2020-06-22 (4 years ago)
First review

Date of first review. Games cannot be reviewed before they are released, so when this is earlier than the release date, it usually indicates a game that was in early access.

2020-06-22 (4 years ago)
Age on Steam

Days since first review, which is typically how long the game has been available for purchase.

1,484 days (4 years)


Total reviews verified
30 30 (100%)
Review breakdown
23 76.7%
7 23.3%
Review velocity
0 reviews per day
Days in top 1000
0 (0%)
Estimated owners Based on research by GameDiscoverCo median


Release price
$1.19 ($1.99 -40%)
Lowest price

Date of the earliest occurrence of the lowest price this game has sold for.

$0.39 (2022-12-23)
Average price
Average discount
Number of discounts
Days discounted
385 (25.9%)
Estimated gross sales Based on research by GameDiscoverCo median
T2 T3
Estimated net sales Based on research by GameDiscoverCo median
T2 T3


Tags in descending order of votes. Votes are the number of times a tag has been applied to this game by a Steam user, shown next to each tag name.

  1. Anime 136
  2. Visual Novel 130
  3. Sexual Content 128
  4. Dating Sim 125
  5. Nudity 123
  6. Puzzle 116
  7. 2D 114
  8. Cute 112
  9. Romance 110
  10. Conversation 108
  11. Story Rich 103
  12. Choices Matter 102
  13. Investigation 100
  14. Atmospheric 98
  15. Detective 96
  16. Mystery 93
  17. Multiple Endings 76
  18. Adventure 58
  19. Logic 57
  20. Hand-drawn 55

Details last updated: July 14, 2024 03:39

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