The Game Census
Mysteria ~Occult Shadows~ cover art

Mysteria ~Occult Shadows~

U-Secret Studio · 2020-09-29

Steam

ActionAdventureIndieRPG

Modes: Single player · Perspectives: Third person

Releases: Sep 29, 2020 (PC (Microsoft Windows))

Explore the land of Sulnas as the "Shadow of Death", a cat girl who's dauntless and fierce. The land is poisoned by secret power and desperately needs salvation. Can you save it from its sure demise or will you doom its fate like everyone else would?

Mysteria ~Occult Shadows~ is a 2020 Action, Adventure, Indie and RPG game priced at $12.99, with an owner estimate of 100,000 .. 200,000 and a review sentiment of Mixed (64% of 3461 reviews).

0
playing now
64%
positive of 3.5k reviews
Mixed
steam's rating (official)
100,000–200,000
owners (SteamSpy est.)
70/100
IGDB user rating (1 ratings)
gold
deck/linux tier (ProtonDB)
Unsupported
Steam Deck (Valve)
SteamOS: Unsupported
$12.99
steam price (US)

0 players in-game as of 2026-10-15 06:00 UTC (census sample)

Trailer

Mysteria ~Occult Shadows~ trailer thumbnail

Mysteria ~Occult Shadows~

≈4,104 YouTube results for this game's trailer search

Health check

Quietly active
  • · 0 players in-game at the last census sample.
  • · 43 reviews in the last 8 weeks (~5/week).
  • · Review velocity down 36% vs the prior 8 weeks.
  • · Current weekly pace is under 5% of the all-time peak week (632 reviews).
  • · Top 8% of 28,039 Action games in the census by review count.

Health tier since 2026-08-27

Estimated sales: 69k–156k copies

Review-multiple estimate from 3,463 total reviews — how this is computed.

All-time low: $2.59 at Steam (2023-06-30)via IsThereAnyDeal

12-month high $12.99 · on sale 6 of 12 observed days (census price snapshots)

Review momentum

PositiveNegative
41441420192026Week of 2019-08-01: 414 positiveWeek of 2019-08-01: 218 negativeWeek of 2019-09-01: 77 positiveWeek of 2019-09-01: 33 negativeWeek of 2019-10-01: 42 positiveWeek of 2019-10-01: 11 negativeWeek of 2019-11-01: 55 positiveWeek of 2019-11-01: 21 negativeWeek of 2019-12-01: 64 positiveWeek of 2019-12-01: 17 negativeWeek of 2020-01-01: 190 positiveWeek of 2020-01-01: 43 negativeWeek of 2020-02-01: 153 positiveWeek of 2020-02-01: 61 negativeWeek of 2020-03-01: 45 positiveWeek of 2020-03-01: 25 negativeWeek of 2020-04-01: 41 positiveWeek of 2020-04-01: 16 negativeWeek of 2020-05-01: 58 positiveWeek of 2020-05-01: 28 negativeWeek of 2020-06-01: 44 positiveWeek of 2020-06-01: 22 negativeWeek of 2020-07-01: 57 positiveWeek of 2020-07-01: 27 negativeWeek of 2020-08-01: 49 positiveWeek of 2020-08-01: 19 negativeWeek of 2020-09-01: 44 positiveWeek of 2020-09-01: 21 negativeWeek of 2020-10-01: 165 positiveWeek of 2020-10-01: 85 negativeWeek of 2020-11-01: 63 positiveWeek of 2020-11-01: 18 negativeWeek of 2020-12-01: 41 positiveWeek of 2020-12-01: 19 negativeWeek of 2021-01-01: 37 positiveWeek of 2021-01-01: 27 negativeWeek of 2021-02-01: 45 positiveWeek of 2021-02-01: 26 negativeWeek of 2021-03-01: 18 positiveWeek of 2021-03-01: 15 negativeWeek of 2021-04-01: 23 positiveWeek of 2021-04-01: 11 negativeWeek of 2021-05-01: 19 positiveWeek of 2021-05-01: 19 negativeWeek of 2021-06-01: 24 positiveWeek of 2021-06-01: 17 negativeWeek of 2021-07-01: 22 positiveWeek of 2021-07-01: 16 negativeWeek of 2021-08-01: 13 positiveWeek of 2021-08-01: 7 negativeWeek of 2021-09-01: 9 positiveWeek of 2021-09-01: 4 negativeWeek of 2021-10-01: 17 positiveWeek of 2021-10-01: 10 negativeWeek of 2021-11-01: 23 positiveWeek of 2021-11-01: 7 negativeWeek of 2021-12-01: 34 positiveWeek of 2021-12-01: 11 negativeWeek of 2022-01-01: 12 positiveWeek of 2022-01-01: 13 negativeWeek of 2022-02-01: 22 positiveWeek of 2022-02-01: 6 negativeWeek of 2022-03-01: 16 positiveWeek of 2022-03-01: 14 negativeWeek of 2022-04-01: 8 positiveWeek of 2022-04-01: 7 negativeWeek of 2022-05-01: 6 positiveWeek of 2022-05-01: 8 negativeWeek of 2022-06-01: 4 positiveWeek of 2022-06-01: 11 negativeWeek of 2022-07-01: 22 positiveWeek of 2022-07-01: 19 negativeWeek of 2022-08-01: 14 positiveWeek of 2022-08-01: 12 negativeWeek of 2022-09-01: 22 positiveWeek of 2022-09-01: 10 negativeWeek of 2022-10-01: 14 positiveWeek of 2022-10-01: 3 negativeWeek of 2022-11-01: 7 positiveWeek of 2022-11-01: 4 negativeWeek of 2022-12-01: 18 positiveWeek of 2022-12-01: 13 negativeWeek of 2023-01-01: 5 positiveWeek of 2023-01-01: 5 negativeWeek of 2023-02-01: 4 positiveWeek of 2023-02-01: 11 negativeWeek of 2023-03-01: 5 positiveWeek of 2023-03-01: 7 negativeWeek of 2023-04-01: 6 positiveWeek of 2023-04-01: 7 negativeWeek of 2023-05-01: 3 positiveWeek of 2023-05-01: 5 negativeWeek of 2023-06-01: 4 positiveWeek of 2023-06-01: 6 negativeWeek of 2023-07-01: 8 positiveWeek of 2023-07-01: 8 negativeWeek of 2023-08-01: 6 positiveWeek of 2023-08-01: 4 negativeWeek of 2023-09-01: 12 positiveWeek of 2023-09-01: 9 negativeWeek of 2023-10-01: 3 positiveWeek of 2023-10-01: 6 negativeWeek of 2023-11-01: 12 positiveWeek of 2023-11-01: 14 negativeWeek of 2023-12-01: 7 positiveWeek of 2023-12-01: 3 negativeWeek of 2024-01-01: 7 positiveWeek of 2024-01-01: 8 negativeWeek of 2024-02-01: 13 positiveWeek of 2024-02-01: 6 negativeWeek of 2024-03-01: 11 positiveWeek of 2024-03-01: 9 negativeWeek of 2024-04-01: 5 positiveWeek of 2024-04-01: 5 negativeWeek of 2024-05-01: 12 positiveWeek of 2024-05-01: 10 negativeWeek of 2024-06-01: 5 positiveWeek of 2024-06-01: 3 negativeWeek of 2024-07-01: 4 positiveWeek of 2024-07-01: 12 negativeWeek of 2024-08-01: 3 positiveWeek of 2024-08-01: 6 negativeWeek of 2024-09-01: 2 positiveWeek of 2024-09-01: 6 negativeWeek of 2024-10-01: 3 positiveWeek of 2024-10-01: 4 negativeWeek of 2024-11-01: 3 positiveWeek of 2024-11-01: 5 negativeWeek of 2024-12-01: 5 positiveWeek of 2024-12-01: 1 negativeWeek of 2025-01-01: 4 positiveWeek of 2025-01-01: 3 negativeWeek of 2025-02-01: 7 positiveWeek of 2025-02-01: 1 negativeWeek of 2025-03-01: 5 positiveWeek of 2025-03-01: 3 negativeWeek of 2025-04-01: 2 positiveWeek of 2025-04-01: 2 negativeWeek of 2025-05-01: 6 positiveWeek of 2025-05-01: 3 negativeWeek of 2025-06-01: 2 positiveWeek of 2025-06-01: 6 negativeWeek of 2025-07-01: 3 positiveWeek of 2025-07-01: 5 negativeWeek of 2025-08-01: 4 positiveWeek of 2025-08-01: 3 negativeWeek of 2025-09-01: 6 positiveWeek of 2025-09-01: 6 negativeWeek of 2025-10-01: 3 positiveWeek of 2025-10-01: 10 negativeWeek of 2025-11-01: 5 positiveWeek of 2025-11-01: 1 negativeWeek of 2025-12-01: 3 positiveWeek of 2025-12-01: 3 negativeWeek of 2026-01-01: 2 positiveWeek of 2026-01-01: 4 negativeWeek of 2026-02-01: 4 positiveWeek of 2026-02-01: 4 negativeWeek of 2026-03-01: 4 positiveWeek of 2026-03-01: 4 negativeWeek of 2026-04-01: 3 positiveWeek of 2026-04-01: 1 negativeWeek of 2026-05-01: 4 positiveWeek of 2026-05-01: 1 negativeWeek of 2026-06-01: 1 positiveWeek of 2026-06-01: 2 negativeWeek of 2026-07-01: 3 negativeWeek of 2026-08-01: 4 positiveWeek of 2026-08-01: 4 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

302026-09-15 15:00 — 1 players2026-09-17 00:00 — 0 players2026-09-18 07:00 — 0 players2026-09-19 15:00 — 1 players2026-09-20 22:00 — 1 players2026-09-22 06:00 — 0 players2026-09-23 13:00 — 1 players2026-09-24 21:00 — 1 players2026-09-26 04:00 — 0 players2026-09-27 12:00 — 2 players2026-09-28 19:00 — 2 players2026-09-30 03:00 — 0 players2026-10-01 10:00 — 0 players2026-10-02 18:00 — 1 players2026-10-04 02:00 — 0 players2026-10-05 10:00 — 1 players2026-10-06 17:00 — 2 players2026-10-08 01:00 — 0 players2026-10-09 08:00 — 1 players2026-10-10 16:00 — 0 players2026-10-11 23:00 — 0 players2026-10-13 07:00 — 0 players2026-10-14 14:00 — 0 players2026-10-15 06:00 — 0 players
Concurrent players, hourly average, last 30 days (census samples).

Price history

$12.99$2.592019-08-232026-08-172019-08-23 — best price $10.392019-11-10 — best price $10.392019-12-19 — best price $10.392020-04-30 — best price $10.392020-07-17 — best price $10.392020-11-25 — best price $10.392021-01-28 — best price $9.092021-05-21 — best price $9.092021-07-16 — best price $7.792021-10-28 — best price $7.792021-12-02 — best price $7.792022-01-27 — best price $6.492022-05-12 — best price $6.492022-09-19 — best price $3.892022-12-01 — best price $3.892023-01-19 — best price $3.892023-03-23 — best price $12.992023-06-23 — best price $12.992023-08-14 — best price $12.992023-11-17 — best price $12.992023-12-20 — best price $12.992024-02-07 — best price $12.992024-04-05 — best price $12.992024-07-11 — best price $12.992024-09-19 — best price $12.992024-12-04 — best price $12.992025-01-30 — best price $12.992025-03-20 — best price $12.992025-06-18 — best price $12.992025-08-01 — best price $12.992025-10-06 — best price $12.992026-01-05 — best price $12.992026-03-26 — best price $12.992026-08-17 — best price $12.99
Lowest recorded price across tracked stores, per day (census snapshots).

Completion

39
achievements tracked
92.7%
earned "Dream of Mysteria"
10%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsSingle-playerSteam AchievementsSteam Trading CardsPartial Controller SupportFamily Sharing11 DLC

3 supported languages: Simplified Chinese, Japanese, English

Post-launch support: 11 DLC released, first 2019-12-20, latest 2020-10-06 (Steam store data)

Where its players are

Share of Steam reviews by language (top languages measured) — a proxy for where the player base lives.

Player tags

RPGCuteGoreJRPGAnimeIndieActionMatureNudityViolent

Census log

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

Players also track

PLANET ALPHACitadel: Forged with FireForgotton AnneEternity: The Last UnicornWarhammer: ChaosbaneDRAGON BALL Z: KAKAROTGOD EATER 3Apsulov: End of Gods

Similarity via IGDB.

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