The Game Census
London Detective Mysteria cover art

London Detective Mysteria

Karin Entertainment · XSEED Games · 2019-07-31

SteamGOG

AdventureCasual

Modes: Single player · Perspectives: Text

Releases: Dec 18, 2018 (PlayStation Vita), Jul 31, 2019 (PC (Microsoft Windows))

The evening is as ordinary as they come for London, England as the curtains close on the 19th century. Mist hangs thick, beclouding the radiance of the moon and modest glow of gas lamps. Upon the resounding chime of Big Ben, a new tale of love and adventure like no other begins!

London Detective Mysteria is a 2019 Adventure Casual game, with an estimated 20,000 to 50,000 owners and a Very Positive review sentiment (84% of 135 reviews).

0
playing now
84%
positive of 135 reviews
Very Positive
steam's rating (official)
20,000–50,000
owners (SteamSpy est.)
78/100
critic score (2 outlets, IGDB)
70/100
IGDB user rating (2 ratings)
pending
deck/linux tier (ProtonDB)
Playable
Steam Deck (Valve)
SteamOS: Playable

0 players in-game as of 2026-10-14 08:00 UTC (census sample)

London Detective Mysteria is a 2013 otome visual novel video game for the PlayStation Portable created by Karin Entertainment and published by Marvelous in Japan.

Health check

Quiet
  • · 0 players in-game at the last census sample.
  • · 9 reviews in the last 8 weeks (~1/week).
  • · Review velocity up 0% vs the prior 8 weeks.
  • · Top 35% of 28,796 Adventure games in the census by review count.

Health tier since 2026-09-01

Estimated sales: 3.4k–8.1k copies

Review-multiple estimate from 135 total reviews — how this is computed.

Review momentum

PositiveNegative
151520192026Week of 2019-08-01: 15 positiveWeek of 2019-08-01: 2 negativeWeek of 2019-09-01: 2 positiveWeek of 2019-09-01: 1 negativeWeek of 2019-10-01: 1 positiveWeek of 2019-11-01: 5 positiveWeek of 2019-12-01: 3 positiveWeek of 2020-01-01: 1 positiveWeek of 2020-03-01: 2 positiveWeek of 2020-04-01: 1 positiveWeek of 2020-04-01: 1 negativeWeek of 2020-05-01: 6 positiveWeek of 2020-06-01: 4 positiveWeek of 2020-07-01: 5 positiveWeek of 2020-07-01: 1 negativeWeek of 2020-08-01: 3 positiveWeek of 2020-08-01: 1 negativeWeek of 2020-09-01: 1 positiveWeek of 2020-11-01: 4 positiveWeek of 2020-12-01: 2 positiveWeek of 2020-12-01: 1 negativeWeek of 2021-01-01: 4 positiveWeek of 2021-01-01: 1 negativeWeek of 2021-02-01: 2 positiveWeek of 2021-05-01: 2 positiveWeek of 2021-07-01: 4 positiveWeek of 2021-08-01: 2 positiveWeek of 2021-09-01: 1 positiveWeek of 2021-09-01: 1 negativeWeek of 2021-10-01: 1 positiveWeek of 2021-12-01: 2 negativeWeek of 2022-01-01: 2 positiveWeek of 2022-02-01: 1 positiveWeek of 2022-04-01: 2 positiveWeek of 2022-05-01: 3 positiveWeek of 2022-06-01: 1 positiveWeek of 2022-07-01: 1 positiveWeek of 2022-08-01: 2 positiveWeek of 2022-09-01: 1 negativeWeek of 2022-10-01: 2 negativeWeek of 2022-11-01: 1 positiveWeek of 2022-11-01: 1 negativeWeek of 2022-12-01: 2 positiveWeek of 2022-12-01: 1 negativeWeek of 2023-01-01: 2 negativeWeek of 2023-03-01: 1 positiveWeek of 2023-04-01: 1 negativeWeek of 2023-05-01: 1 positiveWeek of 2023-05-01: 1 negativeWeek of 2023-06-01: 1 positiveWeek of 2023-10-01: 1 positiveWeek of 2024-02-01: 1 positiveWeek of 2024-02-01: 1 negativeWeek of 2024-04-01: 1 negativeWeek of 2024-05-01: 1 positiveWeek of 2024-07-01: 1 positiveWeek of 2024-08-01: 1 positiveWeek of 2024-10-01: 1 positiveWeek of 2024-11-01: 1 positiveWeek of 2024-12-01: 1 positiveWeek of 2025-01-01: 1 positiveWeek of 2025-02-01: 1 positiveWeek of 2025-03-01: 2 positiveWeek of 2025-06-01: 1 positiveWeek of 2025-10-01: 1 positiveWeek of 2025-12-01: 1 positiveWeek of 2026-02-01: 1 positiveWeek of 2026-04-01: 1 positiveWeek of 2026-05-01: 1 positive
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

202026-09-15 08:00 — 0 players2026-09-16 17:00 — 1 players2026-09-18 00:00 — 0 players2026-09-19 08:00 — 0 players2026-09-20 15:00 — 1 players2026-09-21 23:00 — 1 players2026-09-23 07:00 — 0 players2026-09-24 14:00 — 0 players2026-09-25 22:00 — 0 players2026-09-27 05:00 — 0 players2026-09-28 13:00 — 0 players2026-09-29 20:00 — 0 players2026-10-01 04:00 — 0 players2026-10-02 11:00 — 1 players2026-10-03 19:00 — 1 players2026-10-05 03:00 — 1 players2026-10-06 10:00 — 0 players2026-10-07 18:00 — 0 players2026-10-09 01:00 — 0 players2026-10-10 09:00 — 0 players2026-10-11 16:00 — 1 players2026-10-13 00:00 — 1 players2026-10-14 08:00 — 0 players
Concurrent players, hourly average, last 30 days (census samples).

Price history

$29.99$14.992019-07-312025-03-202019-07-31 — best price $26.992019-09-12 — best price $29.992019-11-21 — best price $17.992019-12-05 — best price $17.992020-01-09 — best price $17.992020-01-23 — best price $17.992020-04-20 — best price $29.992020-05-27 — best price $17.992020-08-28 — best price $17.992020-11-25 — best price $14.992020-12-22 — best price $14.992021-02-11 — best price $14.992021-05-06 — best price $29.992021-08-20 — best price $14.992021-11-24 — best price $14.992021-12-13 — best price $14.992022-02-02 — best price $29.992022-05-06 — best price $14.992022-06-28 — best price $29.992022-08-01 — best price $29.992022-10-03 — best price $29.992022-12-01 — best price $29.992023-01-05 — best price $29.992023-02-21 — best price $29.992023-03-23 — best price $29.992023-04-28 — best price $14.992023-06-07 — best price $14.992023-07-13 — best price $29.992023-08-30 — best price $14.992023-12-13 — best price $14.992024-02-14 — best price $29.992024-03-20 — best price $14.992024-04-26 — best price $29.992024-06-27 — best price $14.992024-08-14 — best price $29.992024-09-30 — best price $29.992025-03-20 — best price $29.99
Lowest recorded price across tracked stores, per day (census snapshots).

Attention

1812026-05-30 — 9 pageviews2026-06-03 — 5 pageviews2026-06-07 — 11 pageviews2026-06-11 — 7 pageviews2026-06-15 — 8 pageviews2026-06-19 — 6 pageviews2026-06-23 — 3 pageviews2026-06-27 — 13 pageviews2026-07-01 — 6 pageviews2026-07-05 — 16 pageviews2026-07-09 — 5 pageviews2026-07-13 — 6 pageviews2026-07-17 — 1 pageviews2026-07-21 — 11 pageviews2026-07-25 — 8 pageviews2026-07-29 — 5 pageviews2026-08-02 — 7 pageviews2026-08-06 — 12 pageviews2026-08-10 — 11 pageviews2026-08-14 — 10 pageviews2026-08-18 — 3 pageviews2026-08-22 — 6 pageviews2026-08-26 — 3 pageviews2026-08-30 — 10 pageviews2026-09-03 — 8 pageviews2026-09-07 — 10 pageviews2026-09-11 — 12 pageviews2026-09-15 — 18 pageviews2026-09-19 — 1 pageviews2026-09-23 — 7 pageviews2026-09-27 — 4 pageviews2026-10-01 — 8 pageviews2026-10-05 — 5 pageviews2026-10-09 — 6 pageviews
Daily Wikipedia pageviews (attention proxy, census-recorded).

Completion

16
achievements tracked
64.2%
earned "Darling Debut"
26.3%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsSingle-playerSteam AchievementsSteam Trading CardsSteam CloudFamily Sharing1 DLC

1 supported languages: English

Post-launch support: 1 DLC released, first 2019-07-31 (Steam store data)

Player tags

AnimeOtomeCasualMysteryRomanceViolentAdventureDating SimVisual NovelFemale Protagonist

Census log

Computed from census-recorded observations only — dates are observation dates.

Players also track

Everlasting SummerLife is Strange 2Danganronpa V3: Killing HarmonyA Plague Tale: InnocenceBlacksad: Under the SkinDetroit: Become HumanTwin MirrorDATE A LIVE: Ren Dystopia

Similarity via IGDB.

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