With moving air as an additional factor, unpredictable winds can add an equally unpredictable horizontal velocity to a descending spacecraft.

One additional factor, however, has made the difference for me.

An additional factor was the large number of trained horses lost during the battle, which proved difficult to replace.

An additional factor was the redundancy provided by having two independent supplies.

Each stage offers unique gameplay and strategic motives, making the chosen stage an additional factor in the fight.