would it be considered unfair as not everyone will have the base game
Is it unfair if you give a game some people already have?
Is it unfair if you give a game some people aren't interested in (FPS or RPG or TBS)?
Is it unfair if you give a game that some people can't run, because their machine isn't powerful enough?
Feel free to donate whatever you feel like donating, people who are interested in it will enter. After all, you are not obliged to give us games (unless there is something going on over there that we are not aware of :P).