Yes, ANYWAYS is a Scrabble word!

Letter values in Scrabble US: A 1, N 1, Y 4, W 4, A 1, Y 4, S 1.

Is it a valid word?

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

used to indicate that a statement explains or supports a previous statement; anyhow, they're quiet"; anyway, it's gone"; in any case, there was a brief scuffle"

Also: in any case, at any rate, in any event.