Island Diary
Released Jul 2021
Let's work together to survive on the deserted island!
95% positive · 125 reviews
Done
All announced content has been released
High confidence
Done
All announced content has been released
High confidence
Where to buy
Steam $16.99
Can't confirm — worth a look
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Evaluation
Island Diary is a kinetic visual novel (no player choices) that released on July 2, 2021. The store description presents it as a self-contained story with a clear beginning and end — Ryou survives on a deserted island with three girls. There is no DLC, no season pass, no roadmap, and no announcements of future content. The only developer post after launch was a bug fix on July 9, 2021 addressing movie playback and achievements — a purely technical patch with no hint of upcoming content. There have been no developer communications of any kind since July 9, 2021. Given the nature of the game (a finite, choice-free story), the absence of any post-launch content structure, and the complete silence from the developer since one week after launch, this game shipped as a finished product and has been content-complete since its release date.
Evidence
The game is described as a kinetic visual novel (no choices) with a fixed cast of characters and a self-contained survival story — no indication of episodic releases, DLC, or ongoing content.
One week after launch, the developer posted a bug fix patch addressing movie playback and achievements. This is the only developer communication on record and contains no mention of upcoming content.
Media
Details
Developer
Publisher
Sekai Project
Achievements
7
Platform
Windows
Controller
—
Steam Deck
Playable
Players
Single-player
About this game
This is an uninhabited island rich with greenery.
The main character, Ryou, has lost his memory after drifting ashore. He ends up living the castaway survivor lifestyle together with the girl who finds him, Momo.
According to Momo, there are two other girls on the island: Kuro and Moca. However, they had a falling out between themselves for some reason and they all live on their own.
In order to survive, they need to cooperate as much as they can. With Momo's guidance, Ryou goes to the other two to persuade them.
Let's work together to survive on the deserted island!



Features
The main character, Ryou, has lost his memory after drifting ashore. He ends up living the castaway survivor lifestyle together with the girl who finds him, Momo.
According to Momo, there are two other girls on the island: Kuro and Moca. However, they had a falling out between themselves for some reason and they all live on their own.
In order to survive, they need to cooperate as much as they can. With Momo's guidance, Ryou goes to the other two to persuade them.
Let's work together to survive on the deserted island!



Features
- Hours of content to read
- A gallery to view CGs
- Music gallery to listen to your favorite in game tracks
- Three adorable and fluffy girls
- Kinetic story (No choices)
Last evaluated Jun 23, 2026
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