It stands for Data Oriented Tech Stack. It's their ECS (Entity Component System) + "high performance c#" (a C# subset with their custom compiler). I used to cal

It stands for Data Oriented Tech Stack. It's their ECS (Entity Component System) + "high performance c#" (a C# subset with their custom compiler). I used to call it Unity 2, since it was so different and incompatible with Unity itself.