Regex Game

Regex Game is a puzzle game that teaches you to use regular expressions to solve challenges. You begin with basic number matching, and each level introduces new Regex rules with gradually increasing complexity. It has more than 30 designed levels covering fundamental Regex concepts; 95% can be completed perfectly without coding experience, while players who can program can use their skills to make the red levels easier.

Puzzles and mini-games

Between chapters, Regex-themed mini-games help reinforce what you have learned. They include:

• Wooden Fish: tap the wooden fish to increase the accuracy rate.
• Regular Spelling of Words: move characters to spell words.
• Regular Ninja: eliminate words that match a given regular expression.
• Password Hint: write a password that meets all the regular-expression requirements.
• Regex VS String

Challenges and progression

The levels include practical tasks such as identifying email addresses in text and a web-crawling simulation. The early levels build skills for more advanced challenges. The first three chapters are mainly for beginners, and players familiar with regular expressions can skip levels according to their ability.

Challenges are grouped by difficulty:

• Green: 1–2 minutes; learn individual Regex symbols.
• Blue: 3–5 minutes; combine three symbols or fewer.
• Purple: 5–20 minutes; solve real-world problems.
• Red: 30 minutes or more; tackle complex pattern analysis.

Chapters 1–3 contain green and blue levels, while Chapter 4 onward introduces purple levels and red challenges. AI assistance is recommended when you get stuck.