Few simple Ideas: 1X game speed - 10x (Or 3 x, Depending on the layout your after) , If you want this to be a bit differant from the other ones out there, forcing idleness and absence, Having an input yourself, Or something to pass the time, Bars to show skills, On hire, Bit like game dev tycoon, A few eastereggs, Ability to rename your workers, Or company, A menu screen, Multiple save files ect. Game engine uses, Such as creating your own, Strategic gameplay, For example, Specific game genres, Work with systems, Systems, EG saga genesis, worker upgrades, Player input, IE press repeatedly to sell more copies, Design better or faster, Ect, Just so we dont have to wait a while, Some sort of timeline, Like your buissness started 1984, Count up the years, more sound tracks, Some pretty Guis ^_^, And lastly, Customizeation, Like editing your room to how you feel, Posters, Some sort of buff if you use expensive paintings, And ability to change your look.