My then just 3 year old had a whale of a time here for a couple of hours. We took her to the arcade "Midway on the Moon" which has a lot of what I would call "arcade" style games which you purchase tickets for to play on. However we did not need to buy any tickets as my DDs were happy going around pressing buttons, moving levers etc without actually playing the games. There were also some basketball type games that are free in a different area (for younger kids) so there are definitely things you can do at DQ with younger children. Personally speaking, they would probably have been happy to spend longer there than I was
Thanks everyone.
We'll take her and see what happens.If she gets bored my niece will have to leave with her while the rest of us stay and enjoy ourselves.