yes it depends on luck, but gameplay is the same as in tetris. every move you need to check what’s appeared next. and because it’s a pure random you need to count what is on board to prevent situation when you have bunch of square tile (4 pips in the corner) and just one cross.
I tried to make it original, i was inspired by 2048+match3+tetris and finally by super hexagon when i added 3 color schemes for the case when you totally clear the board.