[fbdab103]

How long does the license persist? Wikipedia says the first version came out in 1985. Or is it somehow a life of the author + century kind of deal?

[jsheard]

IANAL, but a quick Google suggests that trade dress protection can be extended indefinitely, the only requirement is that it is still being actively used.

TTC exists solely to collect rent on Tetris so they're never going to let it slip away if they can help it.