Steps to build the traditional scrabble game are as follows:

1) Tap ‘Build Your Own Game’ button

2) Select ‘Template: Scrabble’ in the pull down button

3) Tap ‘Customize Game Board’, and move the special squares to make the scrabble game board, and then tap ‘Done’

4) Tap ‘Save’ and then ‘Proceed’.

You can see how easily this is done in this 3 minutes video. Building other games is similar. The steps to build your own game are as follows:

Step 1) Tap the ‘Build Your Own Game’ button. 

Step 2) After that, the build game page will appear. In this page, you can see game settings (board, dictionary, letter point, bingo bonus, etc)  as well as modifying them. To build a game, Tap the ‘Template: YYYY’ pull down button and select one game as your template. This sets everything except the board to the selected game, including the dictionary, letter counts, letter points, and bingo bonus points.

Step 3) Tap ‘Customize Game board’, and the board editor page will show up. You can add and move special squares to and around the board (off the board to delete) to make the board for your game. When it is done, tap ‘Done’.

Step 4) Tap ‘Save’ and then ‘Proceed’, and your game is ready to go. If you want further customization, go to Step 5)

Step 5) You can further customize the game dictionary by tapping the ‘Dict: YYYY’ pull down button, the letter points by tapping the ‘Customize Letter Points’ button,  and bonus points by tapping the ‘Customize Bonus Points’ button. After you are done customizing, tap ‘Save’ and ‘Proceed’ to complete the process.