The main feature is the robotic companions system, you have to allocate status points, equip them, and give them behavior. This system ensures that players are never get stuck in their build or playstyle. It also facilitates party creation.

Vanilla feeling, no option item or skill changes.
Dayone is a mixture of elements from low and mid-rates.
Mid-rate : buffer, warper, restock, autopot, macro etc..
Low-rate : no deslot,no autoloot, mono account etc..
https://youtu.be/3IMqXnkrDTU?t=296