The Game Census
31st prototype cover art

31st prototype

STEAM STREET · 2021-05-04

Steam

Adventure

Modes: Single player · Perspectives: Side view

Releases: May 04, 2021 (PC (Microsoft Windows))

This is a steampunk puzzle game. player use ↑↓←→to control the robot,press Z/ENTER/SPACE to explore the map, and press X/ESC to save game The frame is sketch style, let you immerse the retro atomospher.

31st prototype is a 2021 Adventure game priced at $1.99, with a Positive review sentiment (100% of 17 reviews) and an owner estimate of 100,000 .. 200,000.

0
playing now
100%
positive of 17 reviews
Positive
steam's rating (official)
100,000–200,000
owners (SteamSpy est.)
$1.99
steam price (US)

0 players in-game as of 2026-10-14 16:00 UTC (census sample)

This is a story about one robot who found back her memory in the empty house. She awake on the storm night, but forgot all things, along with the exploration, she found the truth... It not only a decrypt game, but also a text adventure game.(Storyline via IGDB)

Health check

Quiet
  • · 0 players in-game at the last census sample.
  • · 8 reviews in the last 8 weeks (~1/week).
  • · Review velocity up 14% vs the prior 8 weeks.
  • · Top 84% of 28,748 Adventure games in the census by review count.

Health tier since 2026-09-03

All-time low: $1.59 at Steam (2025-12-18)via IsThereAnyDeal

12-month high $1.99 · on sale 4 of 8 observed days (census price snapshots)

Review momentum

PositiveNegative
5520212026Week of 2021-05-01: 5 positiveWeek of 2021-06-01: 1 positiveWeek of 2021-06-01: 1 negativeWeek of 2021-09-01: 1 positiveWeek of 2021-11-01: 1 positiveWeek of 2024-06-01: 2 positiveWeek of 2024-08-01: 1 positiveWeek of 2025-12-01: 1 positiveWeek of 2026-01-01: 2 positiveWeek of 2026-05-01: 1 positive
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

002026-09-15 01:00 — 0 players2026-09-16 10:00 — 0 players2026-09-17 17:00 — 0 players2026-09-19 01:00 — 0 players2026-09-20 08:00 — 0 players2026-09-21 16:00 — 0 players2026-09-22 23:00 — 0 players2026-09-24 07:00 — 0 players2026-09-25 14:00 — 0 players2026-09-26 22:00 — 0 players2026-09-28 05:00 — 0 players2026-09-29 13:00 — 0 players2026-09-30 20:00 — 0 players2026-10-02 04:00 — 0 players2026-10-03 11:00 — 0 players2026-10-04 20:00 — 0 players2026-10-06 03:00 — 0 players2026-10-07 11:00 — 0 players2026-10-08 18:00 — 0 players2026-10-10 02:00 — 0 players2026-10-11 09:00 — 0 players2026-10-12 17:00 — 0 players2026-10-14 00:00 — 0 players2026-10-14 16:00 — 0 players
Concurrent players, hourly average, last 30 days (census samples).

Price history

$1.99$1.592021-05-052026-07-092021-05-05 — best price $1.792021-05-11 — best price $1.992025-09-30 — best price $1.692025-10-06 — best price $1.992025-12-18 — best price $1.592026-01-05 — best price $1.992026-03-19 — best price $1.592026-03-26 — best price $1.992026-04-25 — best price $1.592026-05-02 — best price $1.992026-06-25 — best price $1.592026-07-09 — best price $1.99
Lowest recorded price across tracked stores, per day (census snapshots).

Details

WindowsSingle-playerFamily Sharing

4 supported languages: Simplified Chinese, English, Japanese, Traditional Chinese

Player tags

AnimeDramaRetroLinearPuzzleRobotsFantasyMysteryStylizedAdventure

Census log

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

Players also track

House of CaravanMasochisiaQuern - Undying ThoughtsWeapon Shop FantasyInflictionTech Support: Error UnknownDungeon Of Dragon KnightApsulov: End of Gods

Similarity via IGDB.

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