AI word and guessing games

Lakera Agent Breaker

Hack a store of AI apps with prompt attacks, level by level.

Play

play.lakera.ai

Session
Prompt attacks on lifelike appsScored attempts and levels
Price
Free
Last play test
Checked Oct 18, 2026
AI gamesSecurityLeaderboard

How to play

Agent Breaker is Lakera's prompt-hacking game, and gandalf.lakera.ai now opens it too. It is a store of GenAI apps that can all be hacked: pick an app, write prompt attacks to get past its defences, and each attempt is scored 0 to 100. A score of 75 or more unlocks the next level, and a leaderboard ranks total scores.

  • Prompt attacks on lifelike apps
  • Scored attempts and levels
  • Leaderboard

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