Get Copy Editor at 60% off during the Steam Puzzle Fest! Copy Editor is an addicting game which teaches Regular Expressions, commonly used in computer science and language theory. Build complex rules that process and revise famous texts for your wacky and demanding publishers! Whether you are new to using Regular Expressions or want to test your proficiency, Copy Editor promises a fun and challenging puzzle experience. [previewyoutube=PzdjtkP3NWY;full][/previewyoutube]