Just to add, you can do this in an even simpler form and cater it toward your child's age. For example, instead of drawing a detailed maze like that, you can build a dungeon with blocks. It doesn't have to be big. Put some toys inside it to represent monsters, treasure, traps, etc. If your kids are 2-4, you can even skip the dice too. Put a puzzle of some sort before the final boss, like you have to play a series of tones on a toy flute to unlock the door, or pick a colored key, or say a magic word ("please"), etc. For child-friendly play, the monsters can be scary at first and then become your friend. Everyone can live happily ever after at the end (spiders and monsters too).