Hello! I am so glad that you added the save game option. Now you can manage your ski resort over multiple days. However, the game gets dull after a few days. To make it more interesting here are some suggestions.
Variety of Lifts- ex. Double, Triple, Quad, Detachable Quad, Detachable Six Pack- Eight Person...etc.
More realistic Lengths- The lift and trail lengths are really short. For example, the Chairlift is limited to 300 or so meters. That isn't very long!
Features added to trails/lifts- Each run is different, but there are no feature such as race courses, terrain parks, or tree skiing
Change of seasons- Maybe have summer where the snow melts?
Unlocking stuff- To unlock some new features in the future, maybe you have to get 100 or 500 skiers to get a certain type of Lift.
Trail Map Mode- This might be a wild suggestion, but it would be cool if there was a mode where the computer would generate a map of your ski area.
Those are a couple of suggestions. Just because I have some suggestions doesn't mean I don't like it. It is still a good game. However there are some bug. They don't make me just want smash my computer but here are some I have noticed
Trail Names- Also you can rename your trails and lifts but I have found a problem. Even if you rename your trails, and then save your game, when you load the game the day after, the trail names don't get saved.
Lifts- The lifts go through rocks and snow, I don't know how this wold be possible.