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Strategic Word Battles โ€” Outsmart Your Opponent One Letter at a Time

It's like Wordle meets chess. Change one letter per turn, create new words, trap your opponent โ€” and win. Play friends, climb rankings, and conquer the Daily Gauntlet.

๐ŸŽฎ Try Free Demo โ€” No Signup Required Start Playing Free ๐Ÿ”’ Daily Gauntlet

โœ“ No credit card required  โ€ข  โœ“ Instant play  โ€ข  โœ“ Core game free (premium features optional)

Perfect for word game enthusiasts, strategy lovers, and anyone who enjoys a quick mental challenge. Join thousands of players who've already made Thousands of moves this month.

See It In Action

Watch how strategic thinking and word knowledge combine in this unique battle of wits.

๐ŸŽฎ Try Free Demo Now Start Playing Free ๐Ÿ”’ Daily Gauntlet
Thousands of moves made this month
Join thousands of players in the ultimate word strategy battle

What Players Are Saying

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"Such a fun and inventive game! Great job!"

โ€” Kzulock, 18 games played

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"Loving this game! A fun word play concept thatโ€™s executed very well, with a competitive aspect added by the leaderboards, achievements and elo. I highly recommend."

โ€” Matt T., 45 games played

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"I'm truly addicted to this game. Very challenging and fun to play. The Blitz mode is incredibly fast paced. Trains your mind to think quicker!"

โ€” Mike J, 93 games played

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"Chess meets word games. You have to think several moves ahead to trap your opponent. Way more strategic than I expected. The post-game analysis actually teaches you to improve."

โ€” Jordan, 362 games played

How It Works

๐ŸŽฏ
Start with a Word
Each game begins with a random 5-letter word from our 14,000+ word dictionary.
โœ๏ธ
Change One Letter
On your turn, change exactly one letter to create a new valid word. You can't change the letter your opponent just changed.
๐Ÿ†
Trap & Win
Force your opponent into a corner. The first player who can't make a valid move loses. Win 2 out of 3 games to win the match!

Why You'll Love Letter Lock

๐ŸŽฎ Multiplayer & Ranked Mode

Challenge real players worldwide or climb the ELO leaderboard. Every match counts toward your ranking.

๐Ÿค– Smart AI Opponents

Train with multiple difficulty levels from beginner to expert. Sharpen your strategy before taking on real players.

๐Ÿ”’ Daily Gauntlet

A new challenge every day against the toughest AI. Beat it and share your replay to show off your skills.

โšก Blitz Mode

Fast-paced, 10-second turns. Think quickly or get locked out. Perfect for quick mental workouts.

๐Ÿ… Achievements & Stats

Earn badges, track your win rate, and watch your skills improve over time. Compete on global leaderboards.

๐Ÿ“š Huge Word Library

14,000+ valid words ensure endless variety. No two games are ever the same.

Ready to Start Playing?

Try the free demo right now โ€” no signup required. Or create an account to save your progress and challenge friends.

๐ŸŽฎ Try Free Demo Now Start Playing Free

Frequently Asked Questions

Is Letter Lock free to play? +
Yes! Letter Lock is free to play. You can try the demo without signing up, or create a free account to play multiplayer games, challenge friends, and compete in daily challenges. All core gameplay features are available at no cost โ€” premium features are optional and don't affect gameplay.

Optional Supporter Subscription ($3/month): For those who want to support development and unlock premium features, we offer an optional Supporter subscription that includes:
โ€ข Unlimited game analysis with move-by-move breakdowns
โ€ข Teaching tips based on your gameplay patterns
โ€ข Additional themes
โ€ข Cancel anytime โ€” no commitment required
How many words are in the game? +
Letter Lock features over 14,000 valid 5-letter English words, ensuring endless gameplay variety and strategic possibilities.
Can I play against AI? +
Yes! Letter Lock includes AI opponents for practice. You can also challenge the toughest AI in the Daily Gauntlet mode, which offers one attempt per day.
What is the Daily Gauntlet? +
The Daily Gauntlet is a special challenge mode where you face the toughest AI opponent. You get one attempt per day, and the challenge resets daily. Track your streaks and compete on the leaderboard!