Bug Hunter

Bug Hunter is a free timed browser game for software testers where you find bugs hidden in real UI screenshots and code snippets, training the fast visual scanning that exploratory testing depends on.

Exploratory testing is a perception skill before it is a process. Bug Hunter puts real screens in front of you with a clock running, which is the closest a game gets to the pressure of a live session.

Open Bug Hunter on Testing Titbits Playground · 5 min · Exploratory Testing · Free, no sign-up

How to play Bug Hunter

1. Start the round. The timer begins immediately.
2. Scan each UI screenshot or code snippet for the planted defect.
3. Click the bug when you see it. Wrong clicks cost you.
4. Keep moving - the clock is the constraint, not the puzzle.
5. Final score is out of 100 and posts to the global leaderboard.

What you will learn

• How to scan a screen systematically instead of randomly.
• Which defect classes the eye skips over by default.
• How time pressure changes what you notice.
• The value of a repeatable scanning pattern in exploratory testing.

Frequently asked questions

What is exploratory testing?

Exploratory testing is simultaneous learning, test design and test execution. The tester uses what they just discovered to decide what to try next, rather than following a pre-written script.

Does Bug Hunter use real bugs?

The screenshots and snippets are drawn from realistic UI and code patterns, with defects of the kind that reach production - alignment, state, validation, copy and logic errors.

How long is a round?

About five minutes. Most players replay it to beat their own score.

More free games and infographics for testers

• Context Handoff
• Deep Context
• The Number
• Context Matters
• Guard Rails
• Testing Emoji Charades
• AI Readiness Test
• Bug Maze
• Break the Field
• AI Engineering, Explained by Magic
• Exploratory Testing Dice
• The Tech Divide
• Context Travel
• The Context Paradox
• Tokens, Explained
• How GenAI Works
• Loops at Work
• All games on Testing Titbits Playground
• Global leaderboard

Created by Rahul Parwal · TestingTitbits.com