通过轮流驱动一些强大的地下机器（卡车，起重机和公共汽车）来理解强大工作流程的复杂机制。在每个级别中，您将有不同的任务要完成，您将不得不按时驾驶卡车，运送工人和矿石，在起重机中收集矿石，在公共汽车上接送工人或将矿石运送到工厂。有九个惊人的水平！祝您玩地下机器愉快！
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