Does Sega own Tetris?
Sega, having created its own version of Tetris for arcades in the late 80s, had also readied a port for its 16-bit console, the Sega Mega Drive. The storm surrounding Tetris prompted Sega to hurriedly scrap the game, however, and it’s estimated that only a handful of boxed copies of Sega Mega Drive Tetris still exist.
Is Tetris in public domain?
Tetris has been programmed in 1984 and sold commercially ever since. Since his author is not deceased yet (I think), and certainly not deceased for 70 years, it’s definitely not in the public domain.
How rich is the guy who invented Tetris?
His net worth is $2 900 000 (this is equal to 171 321 560 rubles).