Johnny Mystery and The Halloween Killer overview

Ma Ma Software | Jun 22, 2020 | game

Released

0players observed · 22 September 2026 - 13:43:26 UTC

Indie Steam Store

Latest observed playersNot available
SteamPulse tracked peak3
Units sold (VGI)900
Revenue (VGI)$972
Review score76% positive

Johnny Mystery and The Halloween Killer dated player observations, monthly player trends, reviews, and game metadata are tracked on SteamPulse.

Latest observed playersNot available
SteamPulse tracked peak3
Units sold (VGI)900
Revenue (VGI)$972
Review score76% positive
Total reviews29
Release dateJun 22, 2020
DeveloperMa Ma Software
PublisherMa Ma Software

Genres: Indie

Company pages: Developer: Ma Ma Software Publisher: Ma Ma Software

Top Steam charts Top 100 games Game directory Steam Store page

Game overview

Overview

Johnny Mystery and The Halloween Killer comes from Ma Ma Software and is published by Ma Ma Software. It arrived on Steam on Jun 22, 2020, and it sits naturally among Single-player and Family Sharing. SteamPulse tracks it across Windows and Steam so readers get a quick useful snapshot, not just a wall of numbers.

Players and reviews

Johnny Mystery and The Halloween Killer's latest SteamPulse observation recorded 0 players at 22 September 2026 - 13:43:26 UTC, with a tracked peak near 3. This peak is the highest value in the available SteamPulse record and may not include activity before tracking began. Player reaction is 76% positive across 29 reviews.

Language and system requirements

Johnny Mystery and The Halloween Killer is available in 2 languages including:

EnglishPortuguese - Brazil

3 regional rating boards including dejus, steam germany, and igrs

Platform	Type	OS	Processor	Memory	Graphics	Storage
Windows	Minimum	Not listed	Intel Core 2 Duo or better	3 GB RAM	DirectX / OpenGL capable GPU	600 MB available space

Sales, recommendations, and streams

Johnny Mystery and The Halloween Killer has sold up to 900 units and has recommendation data pending. The estimated VGI revenue is $972. On Twitch, 0 streamers are live with around 0 total watchers.

Detailed game overview

Johnny Mystery and The Halloween Killer overview details

Johnny Mystery and The Halloween Killer combines live player counts with reviews, pricing, platform support, Store metadata, dated player history, media, recent news, and related games.

Steam Store description

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. This is a mystery visual novel with more than 10,000 words, multiple endings and a logic problem to be solved. Future chapters will be regularly released.

SteamPulse editorial summary

Johnny Mystery and The Halloween Killer is listed as a game with $0.99. It supports Windows, belongs to Single-player and Family Sharing, and is associated with Indie. SteamPulse's latest observation records 0 players at 22 September 2026 - 13:43:26 UTC, a tracked peak of 3, and 76% positive reviews.

Overview facts

Field	Value
Game	Johnny Mystery and The Halloween Killer
Steam App ID	1323600
Type	game
Release date	Jun 22, 2020
Developer	Ma Ma Software
Publisher	Ma Ma Software
Price	$0.99
Platforms	Windows
Genres	Indie
Categories	Single-player, Family Sharing
Supported languages	English, Portuguese - Brazil
Website	Not available

Player and review overview

Metric	Value
Latest observed players	0 · 22 September 2026 - 13:43:26 UTC
SteamPulse tracked peak	3
Positive reviews	22
Negative reviews	7
Total reviews	29
Positive percent	76%
Review type	Mostly Positive
Recommendations	Not available
Average playtime	164 minutes

SteamPulse record freshness

Field	Value
Steam release date	Jun 22, 2020
Official Steam feed update (UTC)	Not available
SteamPulse last record update (UTC)	22 September 2026 - 13:43:26 UTC
Live player count updated (UTC)	22 September 2026 - 13:43:26 UTC
Store metadata updated (UTC)	22 September 2026 - 13:43:26 UTC

Content descriptors

This game pictures dead character and the one finger challenge. All characters are over 18 years old.

Support and legal notes

Field	Value
Support email	[email protected]
Support URL	Not available
Legal notice	MADE WITH VISUAL NOVEL MAKER - DEGICA GAMES. ICONS MADE BY FREEPIK. ICONS MADE BY SMASHICONS.

References

Official and third-party reference links for checking this Steam app outside SteamPulse.

Reference	Link
SteamPulse canonical	https://steampulse.org/game/1323600
Steam Store	https://store.steampowered.com/app/1323600/
Steam Community	https://steamcommunity.com/app/1323600
PCGamingWiki search
IGDB search	Search IGDB for Johnny Mystery and The Halloween Killer

Game FAQ

Real questions answered from SteamPulse data, including live players, monthly momentum, review sentiment, regional audience signals, Twitch activity, and current Steam pricing.

What is the latest observed Steam activity for Johnny Mystery and The Halloween Killer?

Johnny Mystery and The Halloween Killer's latest SteamPulse observation records 0 players at 22 September 2026 - 13:43:26 UTC, with a tracked peak of 3 concurrent players in the available SteamPulse record. SteamPulse also records about 3 hours of average lifetime playtime.

Is Johnny Mystery and The Halloween Killer growing or declining recently?

September 2026 is still in progress. The month-to-date average is 0 players; the highest observed daily value is 0 players. Available values are provisional and will continue changing until the UTC month closes. The completed comparison month is August 2026.

What country-level audience data is available for Johnny Mystery and The Halloween Killer?

In the observed sample of public reviewer profiles with a visible country, the leading shares are Brazil (100%). The separate directional player-region model assigns its leading shares to Brazil (54.5%), United States (8.2%), China (7.8%). The directional follower-region model assigns its leading shares to Brazil (66.6%), United States (6.7%), China (6.3%). The directional wishlist-region model assigns its leading shares to Brazil (44.6%), United States (10%), China (9.5%). Only the reviewer view is based on observed public profile countries; the other percentages are modeled relative weights, not verified account locations or country-level user counts.

What does the Steam review footprint look like for Johnny Mystery and The Halloween Killer?

Johnny Mystery and The Halloween Killer currently sits at 76% positive across 29 Steam reviews tracked by SteamPulse, including 22 positive reviews and 7 negative reviews. Steam labels the current review summary as Mostly Positive.

How much follower and Twitch attention does Johnny Mystery and The Halloween Killer have?

Johnny Mystery and The Halloween Killer currently has about 152 tracked Steam followers as of 13 January 2026 - 00:00:00 UTC. On Twitch, SteamPulse is matching roughly 0 live viewers across 0 active streams for the game's category.

What is the current Steam price for Johnny Mystery and The Halloween Killer?

Johnny Mystery and The Halloween Killer is currently listed at $0.99 on Steam. SteamPulse uses the current store snapshot and historical price records to show whether the page is at full price or in a discounted window.

Reviews, pricing, and metadata

Review summary

Mostly Positive

76% positive, 22 positive, 7 negative

Price and discount

$0.99

Platforms

Windows

Categories

Single-player, Family Sharing

Achievements

Not available

Platform releases

Steam 22 June 2020

DLC and packages

Johnny Mystery and The Halloween KillerBuy Johnny Mystery and The Halloween Killer #462149$0.99

System requirements

Minimum requirements

Minimum: OS *: Windows 7/8.1/10 (64bit) Processor: Intel Core 2 Duo or better Memory: 3 GB RAM Graphics: DirectX / OpenGL capable GPU Storage: 600 MB available space

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