Yes, DYSTOPIA is a Scrabble word!

Letter values in Scrabble US: D 2, Y 4, S 1, T 1, O 1, P 3, I 1, A 1.

Is it a valid word?

DYSTOPIA is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

state in which the conditions of life are extremely bad as from deprivation or oppression or terror
a work of fiction describing an imaginary place where life is extremely bad because of deprivation or oppression or terror