http://www.boardgamegeek.com/thread/381942/steam-review-and-comparison-age-steam-3rd-ed
这是一篇相对比较权威的文章（作者Ted设计并出版了不少AoS/Steam扩展地图）
截取一段关于补充货物随机性，说得很有道理
In summary, in AoS you don’t know when and if certain cubes will come out, while in Steam you don’t know where certain cubes will come out. Where is much more important than When in a delivery game, so the randomness in Steam is actually much higher than in AoS. While you might be able to make some assumptions about location during a certain turn regarding cube placement, there is almost no ability to do long term planning in Steam for off-board cubes like you can in AoS. This makes the game less A/P prone, a good thing, but also less strategic, a bad thing.
