About Us

Chain Reaction is a free online word game that tests your vocabulary and quick thinking. In this word chain game, each word you play must start with the last letter of the previous word, creating a continuous chain. The concept is simple to learn but tricky to master, offering endless entertainment for word puzzle enthusiasts.

Our story

Chain Reaction was created by a small independent team of developers and word-lovers with the goal of making learning new words entertaining. What started as a weekend project grew into a daily game played around the world, with players in the United States, Australia, the United Kingdom, India, Canada and beyond. We build, test and run everything ourselves, and we ship improvements based directly on player feedback.

We wanted to build an experience that not only provides hours of fun but also helps players sharpen their language skills. Chain Reaction is designed for anyone who enjoys word puzzles, from students looking to expand their vocabulary to adults seeking a quick brain challenge.

Why you'll love Chain Reaction

• Engaging Gameplay: Fast-paced word chaining that keeps you on your toes.
• Educational Fun: Improve your vocabulary and spelling as you play without even realizing it.
• Variety of Modes: Multiple difficulty levels and languages (English, Spanish, French) to suit all players.
• Daily Challenges: New puzzles every day and a global leaderboard to compete with players worldwide.
• Completely Free: No download, no signup. The game runs in any browser, on any device.

Get in touch

We read every message. The fastest way to reach us is the feedback form, whether it's a bug report, a feature request, or a word you think belongs in our dictionary.

We believe that learning can be fun. With Chain Reaction, you'll find yourself discovering new words and making quick connections, all while enjoying a friendly challenge. Join our community of word game fans and see how long of a chain you can create!