The Game Census
Prototype Mansion - Used No Cover cover art

Prototype Mansion - Used No Cover

Jupiter Lighthouse Games · 2018-07-19

Steam

AdventureIndie

Modes: Single player

Releases: Jul 19, 2018 (Mac), Jul 19, 2018 (Linux), Jul 19, 2018 (PC (Microsoft Windows))

A classic 32-bit Survival-Horror found in a bargain bin. It is HARD, JANKY, and MEAN-SPIRITED. BUYER BEWARE!! ↓

71%
positive of 58 reviews
Mostly Positive
steam's rating (official)
0–20,000
owners (SteamSpy est.)
70/100
IGDB user rating (0 ratings)
$4.99
steam price (US)

Health check

Quiet
  • · 11 reviews in the last 8 weeks (~1/week).
  • · Review velocity up 10% vs the prior 8 weeks.
  • · Top 66% of 15,959 Adventure games in the census by review count.
Estimated sales: 1.4k–3.5k copies

Review-multiple estimate from 58 total reviews — how this is computed.

All-time low: $1.69 at Steam (2021-11-24)via IsThereAnyDeal

12-month high $4.99 · on sale 2 of 4 observed days (census price snapshots)

Review momentum

PositiveNegative
7720182026Week of 2018-07-01: 7 positiveWeek of 2018-07-01: 2 negativeWeek of 2018-08-01: 2 positiveWeek of 2018-10-01: 2 positiveWeek of 2018-12-01: 1 positiveWeek of 2018-12-01: 1 negativeWeek of 2019-01-01: 3 positiveWeek of 2019-04-01: 1 positiveWeek of 2019-11-01: 1 positiveWeek of 2020-03-01: 1 positiveWeek of 2020-03-01: 1 negativeWeek of 2020-04-01: 1 positiveWeek of 2020-06-01: 1 negativeWeek of 2020-07-01: 1 negativeWeek of 2020-08-01: 1 negativeWeek of 2020-10-01: 1 negativeWeek of 2021-04-01: 1 negativeWeek of 2022-05-01: 1 negativeWeek of 2022-06-01: 1 negativeWeek of 2022-07-01: 1 positiveWeek of 2023-03-01: 1 positiveWeek of 2023-09-01: 3 positiveWeek of 2023-10-01: 1 positiveWeek of 2023-11-01: 1 positiveWeek of 2024-05-01: 1 negativeWeek of 2024-09-01: 1 positiveWeek of 2024-09-01: 1 negativeWeek of 2024-10-01: 2 positiveWeek of 2024-11-01: 1 positiveWeek of 2024-11-01: 1 negativeWeek of 2025-01-01: 1 negativeWeek of 2025-03-01: 1 positiveWeek of 2025-04-01: 2 positiveWeek of 2025-05-01: 1 negativeWeek of 2025-09-01: 1 negativeWeek of 2026-05-01: 1 negativeWeek of 2026-07-01: 1 positive
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Price history

$4.99$1.692018-07-192026-01-052018-07-19 — best price $4.992021-11-24 — best price $1.692021-12-01 — best price $4.992021-12-22 — best price $1.692022-01-05 — best price $4.992023-10-26 — best price $1.992023-11-02 — best price $4.992023-11-21 — best price $2.992023-11-28 — best price $4.992023-12-21 — best price $1.992024-01-04 — best price $4.992024-10-28 — best price $2.492024-11-04 — best price $4.992025-10-27 — best price $2.492025-11-03 — best price $4.992025-12-18 — best price $1.692026-01-05 — best price $4.99
Lowest recorded price across tracked stores, per day (census snapshots).

Details

WindowsmacOSLinuxFull controller supportSingle-playerSteam AchievementsFull controller supportSteam CloudFamily Sharing

Player tags

IndieRetroHorrorAdventureDifficultSurvival Horror

Census log

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

Players also track

Lighthouse Keeper路地裏漂流記-古書祭編-

Similarity via IGDB.

Discord ↗