NEONOMINO

Neonomino is a free online block puzzle game that lights up the
classic grid-filling formula with a dazzling neon glow. Drag colorful
polyomino pieces onto the 9x9 board and fill complete rows or columns
to clear them in a burst of glowing particles. There is no timer and
no pressure, just pure, satisfying brain-teasing strategy.

Every round deals you three glowing block pieces. Place them wisely:
once the board fills up and no piece fits, the game is over. Clear
multiple lines at once for big bonus points, and keep clearing on
back-to-back moves to build a blazing combo multiplier that sends
your score into the stratosphere.