Their reason for releasing this as a new game, instead of just an update, is the most retarded thing i read recently
Quote: |
While a simple patch/update on the old version was not possible due to slightly higher system requirements (just imagine an owner is not able to play the game any more due to that change!) |
Apparently adding new levels, weapons and enemies causes a huge increase in the system requirements. 
Enthoo Evolv ATX TG // Asus Prime x370 // Ryzen 1700 // Gainward GTX 1080 // 16GB DDR4-3200