I think, it wont be good idea to keep "restart" option . Because, current save load system store all the data of the side scroller items, enemies and the quest . I need to rework on that to saperate the side scroller data and set them as "temp" . I think it will hit all the deadline s if i start on that. I think , I have to remove restart option and postpone to implement it. I made a progress but the quest system hit me. Sorry for that.
Currently ;
You start on the first level, the game will automatically be saved. So if you just close the game and start it again, main menu will start from the begining of the seige level.
If you go on playing , switch to city and then take the contrat. Game will save the game. So if you switch to mine level and close t without any movement. and start the game again, main menu will start from the end of the city building level. you will start the contrat again .
This is the best i can do . what do you think ?
In my opinion the best option would be to implement possibility of saving the game manually at any time without quitting it with possibility to load save slot at will. Plus autosaves at checkpoints. And restart option could stay if it were to restart current mission instead of the whole game from the beggining. But what you said works too