Fill: Draw One Line Maze Link
By 爱泉 杨
Fill: Draw One Line Maze Link is a single-stroke logic puzzle game for iOS that offers 1,000 levels of grid-filling challenges.
The App DNA
What makes this app unique?
The game removes the friction of connectivity requirements, serving users who need a reliable, offline-capable brain-training exercise during transit or downtime.
For Casual puzzle gamers looking for accessible, offline-capable brain training exercises.
What does it look like?
Key features
Logic puzzle mechanic requiring users to fill every square on a grid using a single continuous line.
Full functionality without an active internet connection, removing connectivity barriers to entry.
Four distinct difficulty tiers scaling in complexity across 1,000 levels.
How much does it cost?
The product operates as a free, ad-supported title with no visible subscription or IAP gates.
Velocity
Dormant developmentopaqueShow more...
The app has reached a zombie state, with no updates or feature releases in 2,131 days. Development activity has been non-existent for nearly six years, indicating the project is no longer supported. There is no evidence of ongoing maintenance or live operations.
Who built it?
User Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for Fill: Draw One Line Maze Link
How's the Games market?
Fill: Draw One Line Maze Link holds a 4.6-star rating from 3,223 total ratings on the App Store. The absence of any update activity since 2020 signals a maintenance-only posture that contrasts with the frequent content drops typical of the casual puzzle category.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for Fill: Draw One Line Maze Link
Where is it heading?
The casual puzzle market is consolidating around titles with frequent live-ops updates, leaving static titles like Fill: Draw One Line Maze Link increasingly exposed. Without a content refresh, the product will likely see a slow decline in organic reach as newer, more active titles capture the top-of-funnel traffic.
- The five-year development freeze indicates a maintenance-only posture, which limits the potential for new user acquisition via feature-driven marketing.
- A 4.6-star rating baseline suggests the core logic puzzle mechanic remains satisfying, providing a stable foundation for potential light-touch re-engagement.
The SWOT
- Offline-first architecture removes connectivity barriers to entry
- Daily puzzle loop could re-engage dormant users
Next best moves
Audit ad-inventory performance because the five-year-old build may have outdated SDKs → stabilize revenue
The counter-intuitive read
The five-year update silence is a feature, not a bug…
Read the full takeSince the last report: The product strategy transitioned from a growth-focused proposal to a technical maintenance audit. This shift prioritizes revenue stability for the legacy build over the previously suggested content expansion.
Bottom line
Fill: Draw One Line Maze Link rests on a stable, high-rated core mechanic, but the five-year development freeze risks long-term audience attrition as competitors introduce live-ops loops.
Unlock 1 critical friction, 1 market threat and the analyst’s take.
Access the full report for freeFAQ
Is Fill: Draw One Line Maze Link free to play?
Does Fill: Draw One Line Maze Link work offline?
How many levels are available in the game?
Sources
- [1] App Store
Report last updated