For climbing its this:
You have ropes or chains or something flexible. You have the option of special shoes or gloves and harnesses. You also have pitons and a hammer. Based on your skill, modified by the lead climber of course, and the steepness of the face plus maybe its handhold score(which you can change by carving handholds) you have a small chance of falling every time you try to move. If you fall you drop down to your last piton just like real climbing.
As I said you can modify difficulty by carving handholds, this was something done by Native Americans at Mesa Verde. You can also leave your pitons and ropes up. You could build and leave a rope ladder. In theory, although it would take a long time, you could carve out steps or the inside of the mountain and whatever other things I have forgotten. I suppose technically this stuff is more crafting than mini-game but the piton and rope part is a mini-game.
Is workable I agree
You could play the entire game just being a boat captain on a trading vessel.
Absolutely - I made an analogy earlier to people playing WoW just to play with the Auction House.
What I am trying to do is steer the thread back onto track in seeking detailed responses. Admittedly I tend to takes aspects out of some people's posts but can you argue that in your posts that you are necessarily providing the detail in similar level to the 1st page including your intial post, which while talking in context of your game still bought valid material to the thread's discussion. A near infinite list of professions is easy enough to complete and moreover it is easy enough to create activities for each of them but in the context of trying to find thoughtful and meaningful posts I don't want what can be easily presented but rather imaginative, relevant, new ways of thinking "Out of the Box" ideas the restriction upon which is that there is no restriction other than it be in keeping with the theme of the thread. I am not trying to piss you off. Indeed you have made valid contributions to the thread. What I am not wanting though, is to lose focus with the thread and have it transform into some other animal, which our current conversation threatens to do.