What's your motivation for building a new engine?

Seems like you've built in some really specific things (from the README);

- Weapon system (melee & projectile)

- Shops

- Client-side predicted projectile + unit movement

- ETC

Why did you decide to bake those into the engine instead of "copyable" plug-ins? Of course lots of games dont need these things - is this a game engine? or is this a FPS/RPG/Else game engine?

I dont hate on tech, but im still left asking "why"? What's it for? Why would I use this over "Three.js" and my own server? :) (I ask only to get your take)