Comparison

The Castle Path vs Fill One Line 3D

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

The Castle Path

Engage your mind with a puzzle game where strategic choices unlock paths through challenging levels. Navigate obstacles, manipulate the environment, and reach the treasure by selecting the correct route.

Highlights
  • Puzzle and anticipation gameplay
  • Environmental state modification
  • Obstacle-based level design
  • Switch-activated path clearing
  • Star collection for progression
  • 60 unique levels
Features
Read full description

« The Castle Path » is a puzzle and anticipation game, without chance or timing, based on mini puzzles to be solved by choosing the right ladder on each floor to reach the chest. Inspired by the concept of labyrinths, the originality of the game is to be able to modify the state of the active elements of the levels according to your choices. The levels are made up of numerous obstacles, such as spikes, doors, statues, moving guards, tunnels... They are also made up of switches allowing to invert the states of the obstacles in order to clear a path. Collect stars in order to unlock floors and play more levels. The game offers 60 levels to solve and 180 stars to collect.

About

Fill One Line 3D

Features
Read full description

Fill Line Game on Lagged Fill up the empty spaces/flow free fill to complete each level. You can not overlap any spaces you have already filled, so think ahead so that you can complete each level with a single line. The levels get progressively harder so try to relax and solve each puzzle. Can you complete all 36 levels in this fun online puzzle game? How to play: Click or tap and drag to fill the empty spaces. It's time to sharpen your mind with a 'connect the block' style one line brain training puzzle game. Plan your moves carefully and think about how you fill the lines. Good luck! 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. Free Flow - Fill One Line is puzzle game. Your mission is fill the all blocks on the screen by only one line Your brain becomes more active the more you play. During your commute, before you sleep… enjoy downtime with brain training. Summary: Free Flow is A simple game but addictive. Free Flow game is free to play. "Relax", "Focus", Training Your brain. Free Flow game will stimulate your brain each time you play Energizing your brain: + During your free time, + During your commute, + Before you sleep + Enjoy free time with Flow brain training. Your brain becomes more active the more you play. During your commute, before you sleep… enjoy downtime with brain training. All you need to be master of wood puzzle one line fill :fill the wooden puzzle in one line ,can fill all the blocks using only one line? Chalenge yourself and sharp your mind by playing oneline puzzle in wooden style . don't be crasy withthe most difficulte puzzles remember you can always use hint for complected levels .to passe them easly. Wood Puzzle Fill One Line Puzzle-Fill One line wood freatures : - Fill One Line Puzzle: levels to chose from . - Fill One Line Puzzle :from begeiner to master. - Fill One Line Puzzle: a gameplay that suits kids and adults and even granny. - Fill One Line Puzzle:more than 20 free hints to use wheneyou are stuck in any level.

Screenshots

The Castle Path4 screens
Fill One Line 3D4 screens

Verdict

The call

The clearest difference is price: Fill One Line 3D at Free against The Castle Path's $4.99. Fill One Line 3D also leads on iOS requirement (12.0 vs 15.0). The Castle Path's advantage is ads (none vs shown) and update cadence (every 7 months vs every 22 months). On in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Fill One Line 3D is free to download; The Castle Path costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

The Castle Path ships an update every 7 months, Fill One Line 3D every 22 months. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

Scorecard4 real differences · 5 level
The Castle Path versus Fill One Line 3D: the parameters behind the verdict, then further details
ParameterThe Castle PathFill One Line 3D
Price$4.99Free — better
Rating4.7 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 7 months — betterEvery 22 months
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size27 MB63 MB
Age rating4+4+
DeveloperSylvain SecciaPhuong Ta

In-app purchases

None

The Castle Path

No in-app purchases

None

Fill One Line 3D

No in-app purchases

Questions

Is The Castle Path free?
The Castle Path costs $4.99, with no in-app purchases.
Is Fill One Line 3D free?
Fill One Line 3D is free to download, with no in-app purchases.
Do The Castle Path or Fill One Line 3D have ads?
Fill One Line 3D shows ads; The Castle Path does not.
Which is updated more often, The Castle Path or Fill One Line 3D?
The Castle Path ships an update every 7 months, and Fill One Line 3D every 22 months. Most recently, The Castle Path was updated on November 3, 2026 and Fill One Line 3D on November 7, 2026.

Other comparisons