Comparison

King Duel vs Slitherlink

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

Head to head
About

King Duel

Features
Read full description

Protect your king, choose suitable weapons, defeat other kings, and expand your territory

About

Slitherlink

Features
Read full description

Slitherlink - The definitive logic puzzle experience for serious puzzle solvers. Based on the classic Nikoli puzzle, this app delivers a refined, performance-optimized implementation with intelligent puzzle generation and comprehensive progress tracking. Technical Features: • Algorithmically generated puzzles ensuring high-quality challenges • Three calibrated difficulty tiers: 5Ɨ5 (Easy), 7Ɨ7 (Medium), 10Ɨ10 (Hard) • Real-time conflict detection with visual feedback • Efficient undo system with 100-step history • Persistent state management with auto-save • Performance-optimized rendering for smooth 60fps gameplay Game Mechanics: • Three-state edge marking: line, cross, undecided • Loop validation: single continuous closed path verification • Clue satisfaction: numerical constraint checking • Best time tracking per difficulty level • Completion statistics and progress analytics Designed for players who appreciate mathematical logic, constraint satisfaction problems, and systematic problem-solving. Ideal for fans of Sudoku, Minesweeper, and other deductive reasoning puzzles. Elevate your puzzle-solving expertise.

Screenshots

King Duel3 screens
Slitherlink4 screens

Verdict

The call

The clearest difference is ads: Slitherlink at none against King Duel's shown. King Duel's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price and in-app purchases there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard3 real differences Ā· 3 level
King Duel versus Slitherlink: the parameters behind the verdict, then further details
ParameterKing DuelSlitherlink
PriceFreeFree
Update frequencyEvery 4 days—
AdsYesNo — better
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better16.0
Further details — not scored
Size58 MB1 MB
Age rating9+4+
DeveloperHWA DAVIDꙓ 郭

In-app purchases

None

King Duel

No in-app purchases

None

Slitherlink

No in-app purchases

Questions

Is King Duel free?
King Duel is free to download, with no in-app purchases.
Is Slitherlink free?
Slitherlink is free to download, with no in-app purchases.
Do King Duel or Slitherlink have ads?
King Duel shows ads; Slitherlink does not.

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