Slitherlink Online
Visit SiteFree online Slitherlink puzzles with 3000+ puzzles, daily challenges, multiple grid sizes and difficulty levels.
Slitherlink Online
Visit SiteFree online Slitherlink puzzles with 3000+ puzzles, daily challenges, multiple grid sizes and difficulty levels.
What is Slitherlink Online?
Slitherlink Online is a free web-based puzzle game featuring 3000+ unique puzzles. Play the classic loop-drawing logic puzzle with grid sizes from 5x5 to 15x15, difficulty levels from beginner to expert, daily challenges, achievements, and a global leaderboard. Built with Next.js and Cloudflare Workers. Available in English, Japanese, Chinese, Korean, and Turkish. No login required to play.
Slitherlink Online's Core Features
Large Puzzle Library
Over 3,000 unique Slitherlink puzzles curated across multiple grid sizes and difficulty levels so you always have new puzzles to play.
Multiple Grid Sizes & Difficulties
Choose from grid sizes (5x5 up to 15x15) and difficulty tiers (Easy, Medium, Hard/Expert) to match your skill and time available.
Daily Challenge & Achievements
A new daily puzzle to test your skills, plus achievements to track milestones and progress.
Global Leaderboards & Optional Accounts
Sign up to save progress and compete on global leaderboards, or play anonymously with no login required.
Mobile-Optimized & Multilingual
Responsive gameplay on mobile and desktop, available in English, Japanese, Chinese, Korean and Turkish.