My daughter, not quite 4, really likes this game (we've played Basement O' Rats over two sessions) and the bundle has a lot of great content that should keep us entertained for a long time. The rules, hero cards, monsters, and adventures are thoughtfully designed to be fun for the youngest gamers, and the rules are flexible enough for a wide age range. Every character has a varying number of d6's for Melee (Strength), Ranged (Dexterity), Magic (Intelligence), and Armor. Each character also gets a normal attack, special attack, and a bonus ability. An inventory of items like rope, bag of gold, and heals and skills like lore, tracking, and stealth round out the characters. You can use as much or as little of this as you want depending on the complexity your players can handle. The rules offer very helpful tips for running the game for players at different ages.
My daughter quickly picked out a character, gave her a name, and was able to move her paper mini around on the map and roll dice to fight monsters. I wasn't sure she would get the concept of the game at such a young age, but I needn't have worried. If your child loves fairy tales, inventing stories, pretending to be other people, and can recognize the number rolled on a d6, they'll have a lot of fun with Hero Kids.
[5 of 5 Stars!]