You have no clue how a game engine works.
Unreal Engine 3 "Tech Demo": https://www.youtube.com/watch?v=RSXyztq_0uM
Unreal Engine 3 Game: https://www.youtube.com/watch?v=tCw_GKUK7bE
Tech Demos, which Agnis Philosophy is, always show off what the engine is capable of doing. Agnis Philosophy isn't a game, it's a pre-scripted animation running in real-time on a super computer.
A Realm Reborn's engine is just a modified Luminous Tools, which is why it's a "sister engine."
