The Game Census
Zup! 9 cover art

Zup! 9

Quiet River · 2019-06-24

Steam

CasualIndie

Modes: Single player

Releases: Jun 24, 2019 (PC (Microsoft Windows))

Minimal physical puzzle with explosions

5
playing now
95%
positive of 2.0k reviews
Overwhelmingly Positive
steam's rating (official)
50,000–100,000
owners (SteamSpy est.)
80/100
IGDB user rating (2 ratings)
gold
deck/linux tier (ProtonDB)
Verified
Steam Deck (Valve)
SteamOS: Playable
$1.99
steam price (US)

5 players in-game as of 2026-10-14 17:00 UTC (census sample)

Health check

Quietly active
  • · 5 players in-game at the last census sample.
  • · 189 reviews in the last 8 weeks (~24/week).
  • · Review velocity up 80% vs the prior 8 weeks.
  • · Top 5% of 29,137 Casual games in the census by review count.

Health tier since 2026-08-31

Estimated sales: 50k–120k copies

Review-multiple estimate from 1,996 total reviews — how this is computed.

All-time low: $0.55 at Steam (2024-12-19)via IsThereAnyDeal

12-month high $1.99 · on sale 5 of 10 observed days (census price snapshots)

Review momentum

PositiveNegative
20220220192026Week of 2019-06-01: 130 positiveWeek of 2019-06-01: 3 negativeWeek of 2019-07-01: 90 positiveWeek of 2019-07-01: 4 negativeWeek of 2019-08-01: 13 positiveWeek of 2019-08-01: 1 negativeWeek of 2019-09-01: 6 positiveWeek of 2019-10-01: 8 positiveWeek of 2019-10-01: 2 negativeWeek of 2019-11-01: 202 positiveWeek of 2019-11-01: 6 negativeWeek of 2019-12-01: 41 positiveWeek of 2019-12-01: 1 negativeWeek of 2020-01-01: 27 positiveWeek of 2020-01-01: 4 negativeWeek of 2020-02-01: 14 positiveWeek of 2020-03-01: 13 positiveWeek of 2020-03-01: 1 negativeWeek of 2020-04-01: 19 positiveWeek of 2020-04-01: 1 negativeWeek of 2020-05-01: 17 positiveWeek of 2020-05-01: 1 negativeWeek of 2020-06-01: 36 positiveWeek of 2020-07-01: 55 positiveWeek of 2020-07-01: 3 negativeWeek of 2020-08-01: 21 positiveWeek of 2020-08-01: 2 negativeWeek of 2020-09-01: 20 positiveWeek of 2020-09-01: 2 negativeWeek of 2020-10-01: 21 positiveWeek of 2020-10-01: 2 negativeWeek of 2020-11-01: 33 positiveWeek of 2020-11-01: 1 negativeWeek of 2020-12-01: 39 positiveWeek of 2020-12-01: 2 negativeWeek of 2021-01-01: 33 positiveWeek of 2021-01-01: 4 negativeWeek of 2021-02-01: 26 positiveWeek of 2021-02-01: 1 negativeWeek of 2021-03-01: 35 positiveWeek of 2021-04-01: 38 positiveWeek of 2021-04-01: 1 negativeWeek of 2021-05-01: 40 positiveWeek of 2021-05-01: 2 negativeWeek of 2021-06-01: 54 positiveWeek of 2021-06-01: 3 negativeWeek of 2021-07-01: 29 positiveWeek of 2021-07-01: 2 negativeWeek of 2021-08-01: 29 positiveWeek of 2021-08-01: 1 negativeWeek of 2021-09-01: 17 positiveWeek of 2021-10-01: 28 positiveWeek of 2021-11-01: 40 positiveWeek of 2021-12-01: 27 positiveWeek of 2021-12-01: 3 negativeWeek of 2022-01-01: 24 positiveWeek of 2022-01-01: 3 negativeWeek of 2022-02-01: 22 positiveWeek of 2022-03-01: 23 positiveWeek of 2022-03-01: 1 negativeWeek of 2022-04-01: 25 positiveWeek of 2022-04-01: 1 negativeWeek of 2022-05-01: 14 positiveWeek of 2022-06-01: 31 positiveWeek of 2022-06-01: 2 negativeWeek of 2022-07-01: 34 positiveWeek of 2022-07-01: 1 negativeWeek of 2022-08-01: 19 positiveWeek of 2022-08-01: 2 negativeWeek of 2022-09-01: 13 positiveWeek of 2022-10-01: 11 positiveWeek of 2022-11-01: 30 positiveWeek of 2022-11-01: 2 negativeWeek of 2022-12-01: 14 positiveWeek of 2023-01-01: 19 positiveWeek of 2023-01-01: 1 negativeWeek of 2023-02-01: 13 positiveWeek of 2023-02-01: 2 negativeWeek of 2023-03-01: 16 positiveWeek of 2023-04-01: 19 positiveWeek of 2023-04-01: 1 negativeWeek of 2023-05-01: 19 positiveWeek of 2023-06-01: 9 positiveWeek of 2023-06-01: 2 negativeWeek of 2023-07-01: 24 positiveWeek of 2023-07-01: 1 negativeWeek of 2023-08-01: 9 positiveWeek of 2023-09-01: 21 positiveWeek of 2023-09-01: 1 negativeWeek of 2023-10-01: 13 positiveWeek of 2023-10-01: 2 negativeWeek of 2023-11-01: 25 positiveWeek of 2023-11-01: 3 negativeWeek of 2023-12-01: 19 positiveWeek of 2023-12-01: 1 negativeWeek of 2024-01-01: 20 positiveWeek of 2024-01-01: 3 negativeWeek of 2024-02-01: 15 positiveWeek of 2024-02-01: 2 negativeWeek of 2024-03-01: 15 positiveWeek of 2024-03-01: 1 negativeWeek of 2024-04-01: 16 positiveWeek of 2024-05-01: 12 positiveWeek of 2024-05-01: 1 negativeWeek of 2024-06-01: 17 positiveWeek of 2024-06-01: 1 negativeWeek of 2024-07-01: 24 positiveWeek of 2024-08-01: 16 positiveWeek of 2024-08-01: 2 negativeWeek of 2024-09-01: 14 positiveWeek of 2024-09-01: 3 negativeWeek of 2024-10-01: 21 positiveWeek of 2024-11-01: 17 positiveWeek of 2024-12-01: 32 positiveWeek of 2024-12-01: 1 negativeWeek of 2025-01-01: 18 positiveWeek of 2025-01-01: 1 negativeWeek of 2025-02-01: 15 positiveWeek of 2025-03-01: 13 positiveWeek of 2025-04-01: 10 positiveWeek of 2025-04-01: 1 negativeWeek of 2025-05-01: 12 positiveWeek of 2025-06-01: 11 positiveWeek of 2025-07-01: 16 positiveWeek of 2025-07-01: 1 negativeWeek of 2025-08-01: 16 positiveWeek of 2025-09-01: 8 positiveWeek of 2025-10-01: 17 positiveWeek of 2025-10-01: 1 negativeWeek of 2025-11-01: 11 positiveWeek of 2025-11-01: 1 negativeWeek of 2025-12-01: 41 positiveWeek of 2025-12-01: 4 negativeWeek of 2026-01-01: 31 positiveWeek of 2026-01-01: 2 negativeWeek of 2026-02-01: 27 positiveWeek of 2026-02-01: 1 negativeWeek of 2026-03-01: 22 positiveWeek of 2026-03-01: 2 negativeWeek of 2026-04-01: 13 positiveWeek of 2026-04-01: 3 negativeWeek of 2026-05-01: 10 positiveWeek of 2026-06-01: 15 positiveWeek of 2026-07-01: 18 positiveWeek of 2026-08-01: 12 positiveWeek of 2026-08-01: 2 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

3302026-09-15 02:00 — 1 players2026-09-16 10:00 — 3 players2026-09-17 18:00 — 6 players2026-09-19 01:00 — 2 players2026-09-20 09:00 — 5 players2026-09-21 17:00 — 9 players2026-09-23 00:00 — 0 players2026-09-24 08:00 — 1 players2026-09-25 15:00 — 4 players2026-09-26 23:00 — 6 players2026-09-28 06:00 — 5 players2026-09-29 14:00 — 4 players2026-09-30 21:00 — 0 players2026-10-02 05:00 — 4 players2026-10-03 12:00 — 10 players2026-10-04 20:00 — 6 players2026-10-06 04:00 — 33 players2026-10-07 11:00 — 16 players2026-10-08 19:00 — 31 players2026-10-10 02:00 — 5 players2026-10-11 10:00 — 6 players2026-10-12 18:00 — 3 players2026-10-14 01:00 — 1 players2026-10-14 17:00 — 5 players
Concurrent players, hourly average, last 30 days (census samples).
310Jun 2019Aug 2026Jun 2019 — avg 14 · peak 32Aug 2019 — avg 1 · peak 4Oct 2019 — avg 2 · peak 6Dec 2019 — avg 3 · peak 11Feb 2020 — avg 4 · peak 48Apr 2020 — avg 5 · peak 27Jun 2020 — avg 12 · peak 106Aug 2020 — avg 4 · peak 13Oct 2020 — avg 4 · peak 27Dec 2020 — avg 9 · peak 69Feb 2021 — avg 9 · peak 40Apr 2021 — avg 6 · peak 22Jun 2021 — avg 11 · peak 63Aug 2021 — avg 4 · peak 11Oct 2021 — avg 6 · peak 71Dec 2021 — avg 7 · peak 30Feb 2022 — avg 5 · peak 22Apr 2022 — avg 4 · peak 16Jun 2022 — avg 10 · peak 34Aug 2022 — avg 3 · peak 8Oct 2022 — avg 3 · peak 13Dec 2022 — avg 2 · peak 8Feb 2023 — avg 2 · peak 7Apr 2023 — avg 3 · peak 11Jun 2023 — avg 3 · peak 28Sep 2023 — avg 4 · peak 28Nov 2023 — avg 2 · peak 8Jan 2024 — avg 3 · peak 20Mar 2024 — avg 2 · peak 19Sep 2024 — avg 5 · peak 103Nov 2024 — avg 6 · peak 108Jan 2025 — avg 3 · peak 33Mar 2025 — avg 3 · peak 13Sep 2025 — avg 2 · peak 16Dec 2025 — avg 31 · peak 137Feb 2026 — avg 16 · peak 173Apr 2026 — avg 7 · peak 104Jun 2026 — avg 11 · peak 103Aug 2026 — avg 4 · peak 21
Monthly average players (source: steamcharts.com) — history via steamcharts.com; live census sampling since Aug 2026.

Price history

$1.99$0.552024-02-112026-08-242024-02-11 — best price $1.992024-03-15 — best price $0.592024-03-21 — best price $1.992024-06-27 — best price $0.592024-07-11 — best price $1.992024-09-16 — best price $0.592024-09-23 — best price $1.992024-11-27 — best price $0.592024-12-04 — best price $1.992024-12-19 — best price $0.552025-01-02 — best price $1.992025-03-13 — best price $0.592025-03-20 — best price $1.992025-06-26 — best price $0.592025-07-10 — best price $1.992025-09-29 — best price $0.572025-10-06 — best price $1.992025-12-18 — best price $0.592026-01-05 — best price $1.992026-02-09 — best price $0.592026-02-16 — best price $1.992026-03-19 — best price $0.592026-03-26 — best price $1.992026-06-25 — best price $0.692026-07-09 — best price $1.992026-08-17 — best price $0.692026-08-24 — best price $1.99
Lowest recorded price across tracked stores, per day (census snapshots).

Completion

60+
achievements tracked
55.2%
earned "A"
50.7%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsSingle-playerSteam AchievementsSteam Trading CardsSteam CloudFamily Sharing

28 supported languages: English, French, Italian, German, Spanish - Spain, Arabic, Bulgarian, Portuguese - Brazil, Hungarian, Vietnamese, Greek, Danish…

Console footprint

PlatformPlayers trackedCompletionTrophies/achievements
Steam (Steam)5,49669%770

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

Census log

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

Players also track

Supreme Ruler UltimateBronze Age - HD EditionTech Support: Error UnknownPax NovaRogue HeistApsulov: End of GodsTidal Tribe

Similarity via IGDB.