I told my nine-year-old to try making a Roblox game. He figured it out, made games and got his friends playing them—with basically no help from me. That's the comparison I care about when looking at new AI game tools.
Full breakdown: https://youtu.be/ESr-JxuIQg8 (also linked as this Short's related video)
Unity Spark: https://unity.com/spark
Google Playground: https://playground.google.com
Roblox Assistant: https://create.roblox.com/docs/ai/accelerated-workflows
This is an announcement discussion, not a hands-on review. Spark beta availability and features can change.