ToTris Christmas is suggested by a very popular video game, but it has different details which make it more amusing. You still start from level 1, which is really very easy, then, as you go on with strokes, difficulty level will go up, snow will go down heavy and it will be very hard to reach the last level! If you get there, be sure that you will not hold fast for a long time.
Game rules are very simple: you need to make groups of at least 3 equal pieces to make strokes and gain game space: you just need to play once to understand. From next game, you will be ready to the challenge to get to the prohibitive level: level 9.