This was a while back, but my cousin learned to program using Codecademy. These were self-paced courses using web interfaces, which was nice because they didn't have to install anything, they just used a web browser.

It looks like codecademy has a game development path: https://www.codecademy.com/catalog/subject/game-development

Their python chatbot course looks fun too: https://www.codecademy.com/learn/paths/build-chatbots-with-python