The Game Census
Corpse Party: Sweet Sachiko's Hysteric Birthday Bash cover art

Corpse Party: Sweet Sachiko's Hysteric Birthday Bash

MAGES. Inc. · XSEED Games · 2019-04-10

SteamGOG

Adventure

Franchise: Corpse Party · Modes: Single player

Releases: Aug 02, 2012 (PlayStation Portable), Apr 10, 2019 (PC (Microsoft Windows))

Vengeful spirit Sachiko Shinozaki is having a birthday bash, and the lovable cast of damned souls from the Corpse Party series is invited! Join the revelers as they do their best to keep Sachiko happy and survive her twisted games in this midquel to Corpse Party and Corpse Party: Book of Shadows.

86%
positive of 211 reviews
Very Positive
steam rating
0–20,000
owners (SteamSpy est.)
80/100
IGDB user rating (6 ratings)
platinum
deck/linux tier (ProtonDB)
$19.99
steam price (US)
Corpse Party: Sweet Sachiko's Hysteric Birthday Bash is a 2012 survival horror video game developed by Team GrisGris and 5pb., as a spin-off of the Corpse Party series. Initially released only to Japan, it was localized by Xseed Games and published worldwide on April 10, 2019. Described as a "midquel" to Blood Covered and Book of Shadows on Steam, the game follows Sachiko Shinozaki's birthday, as her curse mysteriously weakens and allows her to celebrate it as someone closer to the girl she was before her death. Unlike previous entries, SSHBB has been noted to include romantic comedy and dark humor.

Health check

Quiet
  • · 13 reviews in the last 8 weeks (~2/week).
  • · Review velocity down 24% vs the prior 8 weeks.
  • · Top 54% of 11,424 Adventure games in the census by review count.
Estimated sales: 5.3k–13k copies

Review-multiple estimate from 211 total reviews — how this is computed.

Current store prices

GOG$7.99-60%

Deal snapshots via CheapShark, refreshed daily.

All-time low: $7.99 at Steam (2024-02-19)via IsThereAnyDeal

12-month high $19.99 · on sale 25 of 42 observed days · at its all-time low (census price snapshots)

Review momentum

PositiveNegative
202020192026Week of 2019-04-01: 20 positiveWeek of 2019-04-01: 1 negativeWeek of 2019-05-01: 3 positiveWeek of 2019-06-01: 11 positiveWeek of 2019-06-01: 2 negativeWeek of 2019-07-01: 5 positiveWeek of 2019-08-01: 2 positiveWeek of 2019-09-01: 3 positiveWeek of 2019-09-01: 1 negativeWeek of 2019-10-01: 1 positiveWeek of 2019-11-01: 11 positiveWeek of 2019-11-01: 2 negativeWeek of 2019-12-01: 4 positiveWeek of 2020-01-01: 3 positiveWeek of 2020-02-01: 3 positiveWeek of 2020-05-01: 1 positiveWeek of 2020-06-01: 1 positiveWeek of 2020-07-01: 1 positiveWeek of 2020-11-01: 3 positiveWeek of 2020-12-01: 6 positiveWeek of 2021-02-01: 4 positiveWeek of 2021-03-01: 3 positiveWeek of 2021-04-01: 2 positiveWeek of 2021-05-01: 1 negativeWeek of 2021-08-01: 2 positiveWeek of 2021-09-01: 2 positiveWeek of 2021-10-01: 2 positiveWeek of 2021-11-01: 2 positiveWeek of 2021-11-01: 1 negativeWeek of 2021-12-01: 2 positiveWeek of 2022-01-01: 8 positiveWeek of 2022-02-01: 1 positiveWeek of 2022-03-01: 2 positiveWeek of 2022-04-01: 1 positiveWeek of 2022-05-01: 3 positiveWeek of 2022-06-01: 3 positiveWeek of 2022-06-01: 1 negativeWeek of 2022-07-01: 2 positiveWeek of 2022-07-01: 1 negativeWeek of 2022-08-01: 1 positiveWeek of 2022-08-01: 1 negativeWeek of 2022-09-01: 1 positiveWeek of 2022-10-01: 1 positiveWeek of 2022-10-01: 1 negativeWeek of 2022-11-01: 1 positiveWeek of 2022-11-01: 1 negativeWeek of 2022-12-01: 1 positiveWeek of 2023-01-01: 5 positiveWeek of 2023-02-01: 2 positiveWeek of 2023-03-01: 2 positiveWeek of 2023-04-01: 1 negativeWeek of 2023-05-01: 1 positiveWeek of 2023-06-01: 2 positiveWeek of 2023-07-01: 4 positiveWeek of 2023-09-01: 3 positiveWeek of 2023-09-01: 2 negativeWeek of 2023-10-01: 1 positiveWeek of 2023-11-01: 3 positiveWeek of 2024-01-01: 2 positiveWeek of 2024-01-01: 1 negativeWeek of 2024-02-01: 2 positiveWeek of 2024-03-01: 1 positiveWeek of 2024-04-01: 3 positiveWeek of 2024-04-01: 1 negativeWeek of 2024-05-01: 2 negativeWeek of 2024-06-01: 4 positiveWeek of 2024-06-01: 1 negativeWeek of 2024-08-01: 2 positiveWeek of 2024-08-01: 1 negativeWeek of 2024-09-01: 1 positiveWeek of 2024-10-01: 2 positiveWeek of 2024-11-01: 2 positiveWeek of 2024-12-01: 3 positiveWeek of 2024-12-01: 1 negativeWeek of 2025-01-01: 1 positiveWeek of 2025-01-01: 1 negativeWeek of 2025-04-01: 1 positiveWeek of 2025-05-01: 1 negativeWeek of 2025-06-01: 1 positiveWeek of 2025-06-01: 2 negativeWeek of 2025-07-01: 2 positiveWeek of 2025-07-01: 1 negativeWeek of 2025-08-01: 1 positiveWeek of 2025-09-01: 1 positiveWeek of 2025-11-01: 4 positiveWeek of 2025-12-01: 2 positiveWeek of 2026-01-01: 2 positiveWeek of 2026-02-01: 1 positiveWeek of 2026-03-01: 1 negativeWeek of 2026-04-01: 1 positiveWeek of 2026-06-01: 1 negativeWeek of 2026-08-01: 2 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Price history

$19.99$7.992019-04-102026-08-302019-04-10 — best price $17.992019-09-02 — best price $19.992019-11-26 — best price $11.992020-01-02 — best price $19.992020-02-29 — best price $19.992020-06-15 — best price $19.992020-10-29 — best price $9.992021-01-04 — best price $19.992021-03-22 — best price $9.992021-06-28 — best price $19.992021-10-28 — best price $9.992021-12-01 — best price $19.992022-01-27 — best price $9.992022-05-24 — best price $19.992022-08-01 — best price $19.992022-10-25 — best price $9.992022-12-02 — best price $19.992023-02-21 — best price $19.992023-04-17 — best price $19.992023-07-13 — best price $19.992023-09-26 — best price $19.992023-12-22 — best price $9.992024-03-20 — best price $7.992024-05-16 — best price $7.992024-06-27 — best price $7.992024-09-20 — best price $7.992024-11-26 — best price $7.992025-01-16 — best price $19.992025-02-24 — best price $19.992025-04-30 — best price $19.992025-08-29 — best price $7.992025-11-05 — best price $19.992025-12-18 — best price $7.992026-03-16 — best price $19.992026-06-01 — best price $19.992026-08-28 — best price $7.992026-08-30 — best price $7.99
Lowest recorded price across tracked stores, per day (census snapshots).

Attention

2112026-05-22 — 9 pageviews2026-05-25 — 6 pageviews2026-05-28 — 11 pageviews2026-05-31 — 9 pageviews2026-06-03 — 8 pageviews2026-06-06 — 9 pageviews2026-06-09 — 10 pageviews2026-06-12 — 9 pageviews2026-06-15 — 18 pageviews2026-06-18 — 13 pageviews2026-06-21 — 10 pageviews2026-06-24 — 9 pageviews2026-06-27 — 17 pageviews2026-06-30 — 4 pageviews2026-07-03 — 7 pageviews2026-07-06 — 5 pageviews2026-07-09 — 8 pageviews2026-07-12 — 7 pageviews2026-07-15 — 8 pageviews2026-07-18 — 20 pageviews2026-07-21 — 8 pageviews2026-07-24 — 5 pageviews2026-07-27 — 10 pageviews2026-07-30 — 3 pageviews2026-08-02 — 11 pageviews2026-08-05 — 9 pageviews2026-08-08 — 11 pageviews2026-08-11 — 12 pageviews2026-08-14 — 7 pageviews2026-08-17 — 8 pageviews2026-08-19 — 7 pageviews
Daily Wikipedia pageviews (attention proxy, census-recorded).

Completion

19
achievements tracked
58%
earned "It Begins..."
25.4%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsFull controller supportSingle-playerSteam AchievementsFull controller supportSteam Trading CardsDualShock Controller SupportDualShock Controller SupportDualSense Controller SupportDualSense Controller SupportSteam CloudFamily Sharing

1 supported languages: English

Console footprint

PlatformPlayers trackedCompletionTrophies/achievements
Steam (Steam)27346%19

Players tracked by Exophase (achievement/trophy trackers) — a sample of the player base, not total sales.

Player tags

GoreAnimeComedyHorrorViolentAdventureVisual NovelSexual Content

Census log

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

Players also track

House of CaravanMasochisiaVampire: The Masquerade® - Bloodlines™ 2Weapon Shop FantasyInflictionScornApsulov: End of GodsTorchlight III

Similarity via IGDB.

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