Since the original town was overrun with griefing and is now effectively a ghost town, many players have decided to pack it up and start new settlements away from the chaos. Some of the 8th graders have setup camp in a desert region. I'm not sure if they've given it a proper name or not, but it can quite accurately be described as a desert fortress.
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The building is constructed of impenetrable bedrock, a reenforcing layer of obsidian and a brick facade. As if that wasn't enough, add a moat, lava and flaming cactus walls around the perimeter.
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If, by chance, some unfortunate griefer makes it passed the outer defenses they're likely to fall victim to one of the many traps inside the structure. Does this hallway lead to a storeroom full of diamonds or certain death? (it's full of diamonds, go ahead and grab them!)
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Topside, TNT cannons protect the build (TNT is temporarily disabled on our server because of unrelated griefing).
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Intricate wiring allows for all of the roof's cannons to be fired with the press of a single button (the red dotted lines are circuits placed to trigger actions with switches).
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My personal favorite part of this build are not the defenses, but the rail system designed to transport people and resources to different areas in the world.
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The rails travel above and below ground, and make moving from location to location amazingly fun. These pictures don't really show how cool it is. I hope to have a video of it posted soon. I didn't get to see the whole rail system while taking these screenshots because a black sheep wandered onto the tracks and stopped my cart.
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More to come...