pop & funWikipedia2012 · New Jersey, USA

A court ruled a Tetris clone broke copyright by copying how the game looks

the gist

In 2012 a federal court in New Jersey ruled that a mobile game called Mino had infringed the copyright of Tetris. Tetris Holding, which owns the rights to the 1985 original, had sent a takedown notice and then sued the developer, Xio Interactive, after Mino was downloaded millions of times. Earlier cases held that you may clone a game's ideas and rules, because copyright protects only the specific expression of an idea. Judge Wolfson applied a test that strips out unprotectable gameplay ideas and compares what remains. What was left, including the art style, was substantially similar to Tetris, so Tetris Holding won. Later disputes have cited the ruling to protect a game's look and feel.

so what

Anyone can legally make a falling-blocks puzzle, but they cannot copy Tetris's distinctive visual presentation. The ruling drew a clearer line between a genre and a specific game, and it is now used in cloning disputes across the games industry, where copycats on app stores are common.

fun fact

Tetris was created in 1985 by Soviet computer scientist Alexey Pajitnov.

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