https://www.scirra.com/arcade/adventure-games/adventure-builder-37411
Here's the link to the game. Jaimie's been working on it in the evenings after the kids go to bed and its too dark out to do outside stuff.
You need a keyboard to play, Dashaina uses her Bluetooth keyboard with her tablet just fine. It should be fairly obvious when you get to the end of current progress. We'd tell you where it is, but don't want to spoil anything! We'll update regularly.