Fusion is a LEGO theme which is a combination of standard System bricks and a mobile app which is designed to interact and communicate with the build models. Fusion was released in 2014 exclusively in the United States and was LEGO’s second theme to combine physical LEGO Bricks and computers, the first being Life of George.
Summary
Fusion Town Master set 21204 was released on August 15, 2014, retailing for $20, it has since been retired. New, unopened sets are valued at $39, used ones can be found for $10.
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