Answer:
1)engagement
2)clarity , consistency , simplicity
3)consistency
4)clarity ,consistency ,simplicity
Explanation:
The answers of the four parts are as mentioned above.
If the game is engaging the interest of the interested players will be retained certainly.
If it is clear, consistent and simple, then you will definitely be able to retain the kind of fun the game will be creating in the intended player audiences.
If its consistent, then the game will certainly require one type of approach.
And if its clear, consistent and simple then the game will be providing the flexibility for the future modification.
Hence the above answer.