I don't think ECS as such would really make a language on its own, but languages that use traits instead of inheritance would be approximately that. Both ECS an

I don't think ECS as such would really make a language on its own, but languages that use traits instead of inheritance would be approximately that. Both ECS and traits eschew using the inheritance-style "is-a" thinking. ECS goes for "has-a" thinking, and traits go for "acts-as" thinking. A few popular trait-based languages that would feel comfortable to someone familiar with ECS are Rust or Go.