The Game Census
ISOLAND4: The Anchor of Memory cover art

ISOLAND4: The Anchor of Memory

Cotton Game · 2024-01-09

Steam

AdventureCasualIndieStrategy

Modes: Single player

Releases: Jan 10, 2024 (PC (Microsoft Windows))

ISOLAND4 is the fifth installment in the ISOLAND series by CottonGame. The game continues to feature the distinctive hand-drawn style of CottonGame, with point-and-click gameplay. The game also features a second playthrough mode, which allows players to gain a deeper understanding of the game.

88%
positive of 168 reviews
Very Positive
steam's rating (official)
20,000–50,000
owners (SteamSpy est.)
$2.99
steam price (US)

Health check

Quiet
  • · 19 reviews in the last 8 weeks (~2/week).
  • · Review velocity down 42% vs the prior 8 weeks.
  • · Top 48% of 15,677 Adventure games in the census by review count.
Estimated sales: 3.4k–7.6k copies

Review-multiple estimate from 168 total reviews — how this is computed.

All-time low: $1.34 at Steam (2026-04-13)via IsThereAnyDeal

12-month high $2.99 · on sale 8 of 16 observed days (census price snapshots)

Review momentum

PositiveNegative
434320242026Week of 2024-01-01: 43 positiveWeek of 2024-01-01: 6 negativeWeek of 2024-02-01: 10 positiveWeek of 2024-02-01: 1 negativeWeek of 2024-03-01: 8 positiveWeek of 2024-03-01: 1 negativeWeek of 2024-04-01: 4 positiveWeek of 2024-04-01: 2 negativeWeek of 2024-05-01: 8 positiveWeek of 2024-06-01: 3 positiveWeek of 2024-07-01: 4 positiveWeek of 2024-07-01: 2 negativeWeek of 2024-08-01: 3 positiveWeek of 2024-08-01: 1 negativeWeek of 2024-09-01: 2 positiveWeek of 2024-10-01: 2 positiveWeek of 2024-11-01: 10 positiveWeek of 2024-12-01: 5 positiveWeek of 2024-12-01: 1 negativeWeek of 2025-02-01: 1 positiveWeek of 2025-03-01: 1 positiveWeek of 2025-04-01: 1 negativeWeek of 2025-05-01: 2 positiveWeek of 2025-05-01: 3 negativeWeek of 2025-06-01: 4 positiveWeek of 2025-06-01: 3 negativeWeek of 2025-08-01: 1 positiveWeek of 2025-08-01: 1 negativeWeek of 2025-10-01: 2 positiveWeek of 2025-11-01: 1 positiveWeek of 2026-01-01: 2 positiveWeek of 2026-03-01: 5 positiveWeek of 2026-03-01: 1 negativeWeek of 2026-04-01: 3 positiveWeek of 2026-05-01: 2 positiveWeek of 2026-07-01: 1 positiveWeek of 2026-08-01: 2 positive
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Price history

$2.99$1.342024-01-102026-07-092024-01-10 — best price $2.692024-03-14 — best price $2.692024-04-27 — best price $2.692024-06-27 — best price $2.002024-10-16 — best price $2.002024-11-27 — best price $1.942024-12-26 — best price $1.942025-01-26 — best price $1.912025-03-13 — best price $1.912025-04-23 — best price $1.912025-05-30 — best price $1.792025-06-27 — best price $1.792025-07-24 — best price $1.792025-09-19 — best price $1.732025-09-29 — best price $1.702025-11-10 — best price $1.702025-12-18 — best price $1.642026-02-13 — best price $1.492026-03-19 — best price $1.492026-04-13 — best price $1.342026-06-26 — best price $1.342026-07-09 — best price $2.99
Lowest recorded price across tracked stores, per day (census snapshots).

Completion

21
achievements tracked
98.1%
earned "Smooth landing"
80%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsmacOSSingle-playerSteam AchievementsCaptions availableSteam CloudRemote Play on PhoneRemote Play on TabletFamily Sharing

11 supported languages: English, French, Spanish - Spain, Russian, Japanese, Simplified Chinese, Traditional Chinese, Arabic, Indonesian, Korean, German

Player tags

2DDramaIndieCasualPuzzleSci-fiClickerStrategyStylizedAdventure

Census log

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

Players also track

MIND: Path to Thalamus Enhanced EditionTiny Bridge: RatventureAeon's EndDungeon Slime: Puzzle's Adventure

Similarity via IGDB.

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