App Store ratings
39,808
0.0% no change vs Aug 8, 2026- Average rating
- 4.6
Mobile game · 2016
Fill one-line puzzle game
Sharpen your mind with a connect-the-block-style one-line brain training puzzle game. A simple but addictive one-line puzzle game that’s completely free to play. Your brain becomes more active the more you play. During your commute, before you sleep… enjoy downtime with brain training. The rules are extremely simple. Just fill in all of the blocks using only one line. Use hints for puzzles that are too hard to solve. Hints are also free, of course. 4 levels of difficulty. A whopping 2,000 puzzles. Don’t get too cozy—the puzzles get harder as you go along. One-line puzzles are mathematical problems with origins in the early 18th century. First posed in Königsberg, the original puzzle revolved around the town’s Pregel River. Mathematical thinking is said to increase work efficiency and prevent aging. Whether math is your bane or your forte, be sure to give this game a try. You’re sure to get hooked on these puzzles!
Estimated daily players
~120,0000.0% no change vs one week ago
Range 12K–720K
Estimated total players
~2,400,0000.0% no change vs one week ago
Range 1.2M–4.8M
Estimates, not counts — nobody publishes real player numbers for mobile games, so these are modelled from public signals. How we work them out
May 2, 2016iOS
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Player estimates
Nobody publishes how many people play Fill one-line puzzle game, so these figures are modelled from the public counts on App Store, Twitch. Each count stands in a roughly known ratio to a population — one Play rating per ~45 players, one Steam review per ~35 owners — and the estimates below combine those readings, weighted by how much each source can be trusted to speak for the whole game. Read the range as the answer and the headline as its middle.
Estimated daily players
~120,000
0.0% no change vs one week agoRange 12K – 720K
No source reports a live count for this game, so this is a share of the total player base — a genre assumption rather than an observation, which is why the range is wide.
Estimated total players
~2,400,000
0.0% no change vs one week agoRange 1.2M – 4.8M
Everyone who has ever played, from the cumulative counts: store ratings and installs, Steam reviews, members and subscribers.
Estimated total players over time
2 readings · last 2 days
Average estimated players per month
| Month | Estimated total players | Change |
|---|---|---|
| August 2026 | ~2,400,000 | — |
Community activity
Last checked Aug 9, 2026
Store signals
How many people have rated, reviewed or installed Fill one-line puzzle game where it is sold.
Community signals
How many people gather around Fill one-line puzzle game outside the stores — members, subscribers and live viewers.
Not tracked for Fill one-line puzzle game: Google Play, Steam, Discord, Reddit, YouTube. A platform appears here once the game has a link to it — most mobile games have no Steam port or subreddit, so a gap is normal rather than a sign the game is small.
Screenshots
Frequently asked questions
How many people play Fill one-line puzzle game?
We estimate that about 2,400,000 people have played Fill one-line puzzle game — plausibly between 1.2M and 4.8M. Around 120,000 of them play on a given day, in a range of 12K and 720K. Both figures are modelled from public counts on App Store and Twitch rather than published by the developer, so read them as a scale rather than as a headcount.
Is Fill one-line puzzle game still active?
Yes. Fill one-line puzzle game is holding steady — it measured within a percent of where it was a week ago. We recheck every source daily, and the charts on this page show each platform's readings over time.
How are the Fill one-line puzzle game player estimates worked out?
Nobody publishes player counts for mobile games, so we infer them. Each public count we can read is converted into a population using a documented ratio — roughly one Google Play rating per 45 people who played, one Steam review per 35 owners, one Discord member per 40 players — and the live counts (Steam concurrents, members online, Twitch viewers) are converted the same way into a daily figure. Those separate estimates are then averaged in proportion to how much each source can be trusted, which is why sources that disagree widen the published range instead of cancelling out. This page is built on 2 readings taken since August 8, 2026.
When was Fill one-line puzzle game released?
Fill one-line puzzle game was released on May 2, 2016 for iOS.
What platforms is Fill one-line puzzle game available on?
Fill one-line puzzle game is available on iOS. You can get it from App Store (iPhone).