Yes, POKERS is a Scrabble word!

Letter values in Scrabble US: P 3, O 1, K 5, E 1, R 1, S 1.

Is it a valid word?

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

fire iron consisting of a metal rod with a handle; used to stir a fire
any of various card games in which players bet that they hold the highest-ranking hand

Also: stove poker, fire hook, poker game.