The 地牢匣 is a type of 宝匣 that can be obtained via 钓鱼 in the 地牢. Opening Dungeon Crates is the only way to obtain the 金锁盒, and therefore any Dungeon-exclusive items normally found in locked 金箱s, once the Dungeon has been fully looted.
- As the Dungeon does not commonly have any type of lakes for the player to fish in, creating an artificial lake is almost always necessary. A simple, yet effective way to do this is to drain any bodies of water near the Dungeon into it, by digging a tunnel from them to the interior of the Dungeon.
- As long as you are below 0 depth and in front of natural Dungeon wall, you are counted as being in the Dungeon. (It is notable that the music changes as well. This is an easy way to tell if you are in the Dungeon.) If you drain nearby lakes or even the 海洋 into the Dungeon, you may want to do it in the outer wall of the Dungeon. Fishing here serves for better protection from Dungeon enemies, and they will also be less likely to spawn.