1、22 - Building a "Shell" with the Cave Kit 用洞穴工具制造洞穴
2、36 - Transitions Between Kits 不同片段间的衔接
3、15 - Snap to Reference 对齐到对象
4、47 - Cave Walls & Pillars 洞穴墙壁&柱子
5、36 - Varying Cave Topography w/ Cliff Pieces 改变洞穴内部构造
6、55 - Covering Holes with Pillars & Boulders 用东西挡住裂缝
7、23 - Dirt Mounds & Rock Piles 土堆&石堆
