It really depends on the game, but even with 2MBit DSL I prefer games 5-10 MB! If done right you can put a lot in there.
The only thing that really eats space is music. But you can always use tracker music (xm,mod,s3m) to minimize this issue... :)
The only thing that really eats space is music. But you can always use tracker music (xm,mod,s3m) to minimize this issue... :)