Flippity's Snowman word game is a game in which students have to correctly guess the letters of a word in order to prevent their snowmen from melting. The template lets you make your own variation on the game with words and hints of your choosing. Your game can be shared with students via its assigned URL. Students don't need accounts in order to play the games that you create.
Here's an overview of how to create your own online word games by using Flippity's Snowman template.