I’ve got 1500 hours in this game. They aren’t random. There is some weighting going on depending on your proficiency bonus that the game applies to rolls. If you’ve got no proficiency the roll will almost always fail the first time even on a DC of 10. A good place to see this is the roll for freeing Us. Anyone with decent strength, dex, or int will roll well. If you don’t have +2 in either of those you’ll almost always fail that roll.
I’ve got 1500 hours in this game. They aren’t random. There is some weighting going on depending on your proficiency bonus that the game applies to rolls. If you’ve got no proficiency the roll will almost always fail the first time even on a DC of 10. A good place to see this is the roll for freeing Us. Anyone with decent strength, dex, or int will roll well. If you don’t have +2 in either of those you’ll almost always fail that roll.