The Game Census
The Butterfly Sign: Human Error cover art

The Butterfly Sign: Human Error

Quantum Phoenix Bucharest · 2017-03-16

Steam

ActionAdventureIndie

Modes: Single player

Releases: Mar 16, 2017 (PC (Microsoft Windows))

The Butterfly Sign: Human Error is the second chapter of the first person detective video game in which we are playing as a sole survivor of a serious terrorist attack. Protagonist is the only witness of the incident and his fate depends on his memories.

0
playing now
50%
positive of 84 reviews
Mixed
steam rating
50,000–100,000
owners (SteamSpy est.)
40/100
IGDB user rating (0 ratings)
$1.74
steam price (US)

0 players in-game as of 2026-08-30 09:00 UTC (census sample)

The Butterfly Sign: Human Error is the second chapter of the first person detective video game in which we are playing as a sole survivor of a serious terrorist attack. Protagonist is the only witness of the incident and his fate depends on his memories. That’s why he goes in for a desperate measure: he takes the experimental medication called “Rammex”, which immerses him in the depths of his mind and makes him accurately recollect a chain of events, which had happened. While wandering through his own memories, the protagonist has to look for evidences and learn bits and pieces to find the gui(Storyline via IGDB)

Health check

Insufficient data
  • · Not enough review history collected yet to judge health.
  • · Top 71% of 10,970 Action games in the census by review count.
Estimated sales: 2.1k–5.0k copies

Review-multiple estimate from 84 total reviews — how this is computed.

Players online

002026-08-11 21:00 — 0 players2026-08-12 13:00 — 0 players2026-08-13 04:00 — 0 players2026-08-13 20:00 — 0 players2026-08-14 12:00 — 0 players2026-08-15 04:00 — 0 players2026-08-15 20:00 — 0 players2026-08-16 12:00 — 0 players2026-08-17 04:00 — 0 players2026-08-17 19:00 — 0 players2026-08-18 11:00 — 0 players2026-08-19 03:00 — 0 players2026-08-19 19:00 — 0 players2026-08-20 10:00 — 0 players2026-08-21 02:00 — 0 players2026-08-21 18:00 — 0 players2026-08-22 10:00 — 0 players2026-08-23 02:00 — 0 players2026-08-23 17:00 — 0 players2026-08-24 09:00 — 0 players2026-08-25 01:00 — 0 players2026-08-25 17:00 — 0 players2026-08-26 09:00 — 0 players2026-08-27 01:00 — 0 players2026-08-27 18:00 — 0 players2026-08-28 10:00 — 0 players2026-08-29 02:00 — 0 players2026-08-29 18:00 — 0 players2026-08-30 09:00 — 0 players
Concurrent players, hourly average, last 30 days (census samples).

Price history

$4.99$1.492017-03-172020-08-312017-03-17 — best price $4.492017-05-29 — best price $2.492017-06-22 — best price $2.492017-07-31 — best price $2.492017-10-02 — best price $2.492017-10-26 — best price $2.492017-11-22 — best price $2.492017-12-11 — best price $2.492017-12-21 — best price $2.492018-02-15 — best price $2.492018-02-26 — best price $2.492018-05-14 — best price $2.492018-06-21 — best price $1.742018-08-13 — best price $2.492018-10-15 — best price $2.242018-10-29 — best price $2.492018-11-22 — best price $3.992018-12-20 — best price $3.992019-01-07 — best price $1.992019-02-04 — best price $2.492019-06-27 — best price $1.492019-07-15 — best price $1.492019-10-07 — best price $2.242019-10-28 — best price $2.492019-11-27 — best price $2.492019-12-09 — best price $2.492019-12-19 — best price $2.492020-03-23 — best price $1.742020-06-26 — best price $2.492020-08-24 — best price $2.492020-08-31 — best price $4.99
Lowest recorded price across tracked stores, per day (census snapshots).

Details

WindowsSingle-playerSteam AchievementsSteam Trading CardsPartial Controller SupportFamily Sharing

2 supported languages: English, Russian

Census log

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

Players also track

Wanderlust AdventuresDon't Knock TwiceDARQ: Complete EditionOmensight: Definitive EditionEternity: The Last UnicornApsulov: End of GodsTorchlight III

Similarity via IGDB.

Official site ↗