The Game Census
BLACKHOLE cover art

BLACKHOLE

FiolaSoft Studio · Fulqrum Publishing · 2015-02-27

SteamGOG

ActionAdventureIndie

Modes: Single player · Perspectives: Side view

Releases: Aug 08, 2017 (PlayStation 4), Aug 08, 2017 (Xbox One), Feb 27, 2015 (Linux), Feb 27, 2015 (PC (Microsoft Windows)), Feb 27, 2015 (Mac)

BLACKHOLE is an award-winning hardcore platformer with over 15 hours of story-driven sci-fi comedy and gravity-twisting puzzles. Complete Edition out now!

BLACKHOLE is an Action, Adventure, and Indie game released in 2015, priced at $8.99, with an estimated 200,000 to 500,000 owners and a Very Positive review sentiment (85% of 1062 reviews).

1
playing now
85%
positive of 1.1k reviews
Very Positive
steam's rating (official)
200,000–500,000
owners (SteamSpy est.)
80/100
critic score (1 outlets, IGDB)
70/100
IGDB user rating (9 ratings)
pending
deck/linux tier (ProtonDB)
Playable
Steam Deck (Valve)
SteamOS: Playable
$8.99
steam price (US)

1 players in-game as of 2026-10-15 05:00 UTC (census sample)

Blackhole, stylized in all-caps, is a puzzle-platform game developed and published by independent Czech company FiolaSoft Studio. The developers worked with Let's Players and YouTubers on the script for the story and for building the characters. It was first released on February 27, 2015 for Microsoft Windows, followed by Linux and OS X on May 11, 2015.

Health check

Quiet
  • · 1 players in-game at the last census sample.
  • · 6 reviews in the last 8 weeks (~1/week).
  • · Review velocity down 40% vs the prior 8 weeks.
  • · Current weekly pace is under 5% of the all-time peak week (22 reviews).
  • · Top 15% of 28,080 Action games in the census by review count.

Health tier since 2026-08-31

Estimated sales: 27k–64k copies

Review-multiple estimate from 1,062 total reviews — how this is computed.

Current store prices

GOG$0.89-90%

Deal snapshots via CheapShark, refreshed daily.

All-time low: $0.63 at GameBillet (2025-11-21) · bundled 7×via IsThereAnyDeal

12-month high $8.99 · on sale 140 of 194 observed days · $0.26 above the all-time low (census price snapshots)

Review momentum

PositiveNegative
222220172026Week of 2017-09-01: 2 positiveWeek of 2017-10-01: 3 positiveWeek of 2017-10-01: 2 negativeWeek of 2017-11-01: 22 positiveWeek of 2017-12-01: 2 positiveWeek of 2017-12-01: 1 negativeWeek of 2018-01-01: 6 positiveWeek of 2018-01-01: 3 negativeWeek of 2018-02-01: 4 positiveWeek of 2018-02-01: 1 negativeWeek of 2018-03-01: 2 positiveWeek of 2018-03-01: 1 negativeWeek of 2018-04-01: 6 positiveWeek of 2018-04-01: 2 negativeWeek of 2018-05-01: 3 positiveWeek of 2018-06-01: 5 positiveWeek of 2018-06-01: 1 negativeWeek of 2018-07-01: 1 positiveWeek of 2018-07-01: 1 negativeWeek of 2018-08-01: 2 positiveWeek of 2018-08-01: 1 negativeWeek of 2018-09-01: 4 positiveWeek of 2018-09-01: 1 negativeWeek of 2018-10-01: 2 positiveWeek of 2018-11-01: 9 positiveWeek of 2018-12-01: 4 positiveWeek of 2018-12-01: 1 negativeWeek of 2019-01-01: 2 positiveWeek of 2019-02-01: 2 positiveWeek of 2019-02-01: 2 negativeWeek of 2019-03-01: 1 positiveWeek of 2019-04-01: 2 positiveWeek of 2019-06-01: 6 positiveWeek of 2019-06-01: 1 negativeWeek of 2019-07-01: 9 positiveWeek of 2019-07-01: 1 negativeWeek of 2019-08-01: 1 positiveWeek of 2019-09-01: 1 positiveWeek of 2019-10-01: 2 positiveWeek of 2019-11-01: 7 positiveWeek of 2019-11-01: 1 negativeWeek of 2019-12-01: 9 positiveWeek of 2019-12-01: 1 negativeWeek of 2020-01-01: 3 positiveWeek of 2020-01-01: 1 negativeWeek of 2020-02-01: 3 positiveWeek of 2020-02-01: 1 negativeWeek of 2020-03-01: 21 positiveWeek of 2020-03-01: 1 negativeWeek of 2020-04-01: 6 positiveWeek of 2020-05-01: 8 positiveWeek of 2020-05-01: 1 negativeWeek of 2020-06-01: 8 positiveWeek of 2020-06-01: 1 negativeWeek of 2020-07-01: 3 positiveWeek of 2020-07-01: 1 negativeWeek of 2020-08-01: 7 positiveWeek of 2020-09-01: 3 positiveWeek of 2020-10-01: 6 positiveWeek of 2020-10-01: 3 negativeWeek of 2020-11-01: 7 positiveWeek of 2020-11-01: 1 negativeWeek of 2020-12-01: 4 positiveWeek of 2021-01-01: 4 positiveWeek of 2021-02-01: 1 positiveWeek of 2021-03-01: 3 positiveWeek of 2021-04-01: 6 positiveWeek of 2021-04-01: 2 negativeWeek of 2021-05-01: 6 positiveWeek of 2021-05-01: 1 negativeWeek of 2021-06-01: 3 positiveWeek of 2021-06-01: 2 negativeWeek of 2021-07-01: 1 positiveWeek of 2021-07-01: 1 negativeWeek of 2021-08-01: 3 positiveWeek of 2021-11-01: 7 positiveWeek of 2021-12-01: 8 positiveWeek of 2021-12-01: 2 negativeWeek of 2022-01-01: 4 positiveWeek of 2022-02-01: 2 positiveWeek of 2022-02-01: 1 negativeWeek of 2022-03-01: 2 positiveWeek of 2022-03-01: 1 negativeWeek of 2022-04-01: 3 positiveWeek of 2022-05-01: 2 positiveWeek of 2022-07-01: 1 positiveWeek of 2022-08-01: 1 negativeWeek of 2022-09-01: 4 positiveWeek of 2022-10-01: 2 positiveWeek of 2022-10-01: 1 negativeWeek of 2022-11-01: 2 positiveWeek of 2023-01-01: 2 positiveWeek of 2023-03-01: 1 positiveWeek of 2023-04-01: 1 positiveWeek of 2023-05-01: 2 positiveWeek of 2023-06-01: 1 positiveWeek of 2023-07-01: 2 positiveWeek of 2023-09-01: 4 positiveWeek of 2023-10-01: 1 negativeWeek of 2023-11-01: 1 positiveWeek of 2023-11-01: 1 negativeWeek of 2023-12-01: 2 positiveWeek of 2024-01-01: 5 positiveWeek of 2024-01-01: 1 negativeWeek of 2024-02-01: 3 positiveWeek of 2024-02-01: 1 negativeWeek of 2024-03-01: 2 positiveWeek of 2024-04-01: 3 positiveWeek of 2024-05-01: 1 negativeWeek of 2024-06-01: 1 negativeWeek of 2024-07-01: 3 positiveWeek of 2024-08-01: 1 positiveWeek of 2024-08-01: 1 negativeWeek of 2024-09-01: 1 negativeWeek of 2024-10-01: 2 positiveWeek of 2024-11-01: 2 positiveWeek of 2024-11-01: 1 negativeWeek of 2024-12-01: 1 positiveWeek of 2024-12-01: 1 negativeWeek of 2025-03-01: 1 positiveWeek of 2025-06-01: 2 positiveWeek of 2025-08-01: 2 positiveWeek of 2025-08-01: 3 negativeWeek of 2025-09-01: 2 positiveWeek of 2025-10-01: 1 positiveWeek of 2025-11-01: 1 positiveWeek of 2025-12-01: 1 positiveWeek of 2026-07-01: 2 positiveWeek of 2026-07-01: 1 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

302026-09-16 07:00 — 0 players2026-09-17 14:00 — 2 players2026-09-18 22:00 — 2 players2026-09-20 05:00 — 1 players2026-09-21 13:00 — 2 players2026-09-22 21:00 — 1 players2026-09-24 04:00 — 1 players2026-09-25 12:00 — 2 players2026-09-26 19:00 — 3 players2026-09-28 03:00 — 1 players2026-09-29 10:00 — 1 players2026-09-30 18:00 — 1 players2026-10-02 01:00 — 1 players2026-10-03 09:00 — 3 players2026-10-04 17:00 — 2 players2026-10-06 00:00 — 1 players2026-10-07 08:00 — 1 players2026-10-08 15:00 — 1 players2026-10-09 23:00 — 2 players2026-10-11 06:00 — 3 players2026-10-12 14:00 — 3 players2026-10-13 22:00 — 1 players2026-10-15 05:00 — 1 players
Concurrent players, hourly average, last 30 days (census samples).
230Sep 2014Aug 2026Sep 2014 — avg 0 · peak 4Apr 2015 — avg 8 · peak 39Aug 2015 — avg 6 · peak 26Dec 2015 — avg 6 · peak 37Apr 2016 — avg 3 · peak 12Aug 2016 — avg 4 · peak 16Dec 2016 — avg 4 · peak 20Apr 2017 — avg 3 · peak 14Aug 2017 — avg 4 · peak 21Dec 2017 — avg 3 · peak 15Apr 2018 — avg 5 · peak 19Aug 2018 — avg 5 · peak 19Dec 2018 — avg 5 · peak 22Apr 2019 — avg 3 · peak 16Aug 2019 — avg 2 · peak 8Dec 2019 — avg 4 · peak 16Apr 2020 — avg 4 · peak 14Aug 2020 — avg 3 · peak 12Dec 2020 — avg 3 · peak 12Apr 2021 — avg 2 · peak 10Aug 2021 — avg 2 · peak 8Dec 2021 — avg 5 · peak 37Apr 2022 — avg 2 · peak 8Aug 2022 — avg 2 · peak 8Dec 2022 — avg 2 · peak 6Nov 2023 — avg 2 · peak 9May 2024 — avg 2 · peak 7Oct 2024 — avg 2 · peak 8Feb 2025 — avg 2 · peak 7Aug 2025 — avg 2 · peak 5Jan 2026 — avg 2 · peak 7Jul 2026 — avg 2 · peak 5Aug 2026 — avg 2 · peak 5
Monthly average players (source: steamcharts.com) — history via steamcharts.com; live census sampling since Aug 2026.

Price history

$14.99$0.712015-02-282026-10-152015-02-28 — best price $14.992016-02-12 — best price $14.992016-09-08 — best price $2.242017-01-27 — best price $2.252017-07-10 — best price $2.242017-12-12 — best price $4.492018-05-08 — best price $8.992018-10-11 — best price $8.992019-01-21 — best price $2.252019-05-10 — best price $2.242019-09-09 — best price $7.352019-12-19 — best price $1.792020-03-16 — best price $1.792020-06-18 — best price $1.792020-09-28 — best price $8.992021-01-05 — best price $8.992021-04-08 — best price $1.792021-06-28 — best price $1.702021-09-24 — best price $1.532021-12-22 — best price $1.472022-04-01 — best price $1.792022-07-11 — best price $7.162022-10-27 — best price $8.992023-01-10 — best price $7.822023-04-27 — best price $1.792023-07-29 — best price $8.992023-11-21 — best price $1.792024-03-06 — best price $7.432024-06-17 — best price $0.712024-09-16 — best price $0.892024-12-19 — best price $0.772025-03-22 — best price $8.992025-07-14 — best price $7.492025-10-15 — best price $0.772026-01-12 — best price $0.742026-04-05 — best price $8.992026-07-01 — best price $0.902026-09-11 — best price $0.892026-10-15 — best price $0.89
Lowest recorded price across tracked stores, per day (census snapshots).

Attention

8992026-05-29 — 67 pageviews2026-06-02 — 14 pageviews2026-06-06 — 9 pageviews2026-06-10 — 16 pageviews2026-06-14 — 17 pageviews2026-06-18 — 26 pageviews2026-06-22 — 43 pageviews2026-06-26 — 10 pageviews2026-06-30 — 21 pageviews2026-07-04 — 20 pageviews2026-07-08 — 41 pageviews2026-07-12 — 14 pageviews2026-07-16 — 78 pageviews2026-07-20 — 42 pageviews2026-07-24 — 34 pageviews2026-07-28 — 25 pageviews2026-08-01 — 33 pageviews2026-08-05 — 14 pageviews2026-08-09 — 34 pageviews2026-08-13 — 60 pageviews2026-08-17 — 27 pageviews2026-08-21 — 23 pageviews2026-08-25 — 45 pageviews2026-08-29 — 17 pageviews2026-09-02 — 45 pageviews2026-09-06 — 20 pageviews2026-09-10 — 16 pageviews2026-09-14 — 26 pageviews2026-09-18 — 33 pageviews2026-09-22 — 19 pageviews2026-09-26 — 25 pageviews2026-09-30 — 14 pageviews2026-10-04 — 15 pageviews2026-10-07 — 45 pageviews
Daily Wikipedia pageviews (attention proxy, census-recorded).

Completion

45
achievements tracked
51.2%
earned "Spilled Coffee"
4%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsmacOSLinuxFull controller supportSingle-playerSteam AchievementsFull controller supportSteam Trading CardsCaptions availableSteam CloudStatsFamily Sharing4 DLC

7 supported languages: English, Czech, Spanish - Spain, French, Italian, German, Polish

Post-launch support: 4 DLC released, first 2015-05-18, latest 2016-06-15 (Steam store data)

Console footprint

PlatformPlayers trackedCompletionTrophies/achievements
Steam (Steam)2,7501%45
PS4 (PlayStation)5515%40

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

Player tags

2DFunnyIndieSpaceActionComedyPuzzleSci-fiAdventureDifficult

Census log

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

Players also track

Star Control®: OriginsDon't Knock TwiceToby: The Secret MinePLANET ALPHAForgotton AnnePikunikuSemblanceDream Alone

Similarity via IGDB.

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