
Copy Editor: A RegEx Puzzle
Copy Editor is an intricate puzzle game that teaches you Regular Expressions (RegEx), commonly used in computer science and language theory. Build complex rules that process and revise famous texts for your wacky and demanding publisher!
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About Copy Editor: A RegEx Puzzle
Using "find and replace" text processing commands, your goal is to align your input with the objective. Like its spiritual predecessor, The Devil's Calculator, no familiarity with the concept is needed. The basics are learned through gentle tutorials, with the focus always on tactics and lateral thinking. While you will no doubt learn valuable RegEx skills, the fun of Copy Editor lies in its sophisticated and rewarding logic puzzles. You must navigate playful obstructions such as a limited number of rules, certain keyboard keys not working for particular levels, and an embellishment of RegEx that extends to Natural Language Processing allowing you to discriminate on criteria like sentiment analysis, stems and parts of speech.
Optimization is a big part of Copy Editor, and you can see how well you stack up to others with detailed breakdowns of your performance. In this way it is similar to RegEx Golf but far more elaborate and nuanced, since text replacement is of equal importance. Confident in your skills? A fully formed level editor will allow you to pose your own challenges to the community.
Whether you are new to using Regular Expressions or want to test your proficiency, Copy Editor promises a fun and challenging puzzle experience.
Game details
Game details
Age ratings
Game modes
Languages
Features
Copy Editor: A RegEx Puzzle price history
Lowest tracked price: £2.59 (Jul 7, 2026) · current best: £5.19.
Copy Editor: A RegEx Puzzle player count & reviews
54% positive reviews all-time · 1 peak players in the last 30 days.
Copy Editor: A RegEx Puzzle — frequently asked questions
Where can I buy Copy Editor: A RegEx Puzzle at the cheapest price?
Right now the cheapest offer for Copy Editor: A RegEx Puzzle is £5.19 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price Copy Editor: A RegEx Puzzle has ever been?
The lowest price KingsPrice has tracked for Copy Editor: A RegEx Puzzle is £2.59 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How many people play Copy Editor: A RegEx Puzzle?
Copy Editor: A RegEx Puzzle peaked at 1 concurrent players on Steam in the last 30 days (highest on Jul 25, 2026). The player chart on this page updates daily.
How can I get Copy Editor: A RegEx Puzzle at a discount?
Create a free price alert on this page and KingsPrice will email you when Copy Editor: A RegEx Puzzle drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- Requires a 64-bit processor and operating system
- OS *: Windows 7
- Processor: 1 gigahertz (GHz) or faster 32-bit (x86) or 64-bit (x64) processor
- Memory: 500 MB RAM
- Graphics: Integrated Graphics
- Storage: 100 MB available space
- Sound Card: Any
Recommended
- Requires a 64-bit processor and operating system













