From the unofficial fan-run MindCrack and HermitCraft wiki
MindCrack Season 2
- Creeper Castle: thejims built a castle nearby Shreeyam's suspension bridge. It is easily recognized by the creeper face design on the front of the castle.
- Base #2: thejims built a second base far from spawn that served as a simple mob trap.
MindCrack Season 3
- Castle: thejims built a castle behind the arena on a mountain. It overlooked a mycelium island and man-made river (location: 1560, 800).
- Nether Hub: thejims built the original Nether Hub along with Nebris. He also built a personal hub at the end of his rail line to house his portals (location: 15, 40), (location: 180, 85).
- Spider Farms: thejims built spider farms using multiple spawners.
MindCrack Season 4
- Village: thejims built a village close to jsano's hospital.