[malloryerik]

I thought of Minecraft too, and the other games that can be modded.

The ComputerCraft mod is interesting, especially a version where you can use a simple GUI inside Minecraft itself to create Lua scripts that control robots "turtles" and computers in the game world: http://computercraftedu.com/

A seven-year-old can make programs (maybe from smaller functions that they've already written) that will hopefully find the diamonds, build the houses, and manage the farms of their Minecraft life.

This seems possible because of the limited number of objects and actions in a Minecraft world, while Minecraft is still rich enough for plenty of experimentation, trial and error, and aha moments...