I wish I could say Bevy could replace Unity ECS, but I can’t. While Bevy’s ECS is undeniably far better than Unity ECS, one of the issues with Bevy is sometimes developers don’t want to be completely locked into using ECS, and since Bevy is practically ECS-only that causes some issues. Plus the fact that Bevy is just new and unpolished, it lacks a lot of features that would be necessary to even be considered professionally.