Here is another one of my favourite games that helps to encourage algebraic thinking:
This is a simple game that is a Windows staple that I have always really enjoyed. When you click on a square it will display a number underneath telling you how many mines that square is touching. Using the process of elimination, you are able to identify which spaces are mines and right-click on them to flag them. Continue doing this until the board is clear and you’ll win. Having the students go through this game is a great jump start to any class as it will encourage a way of thinking that is conducive with mathematics.
Hope you all enjoy it!