Megastruct has a dark and light room. Contruct has a white room, which you can change to black. Failing that, there's a tonne of dark and moody maps you can use on garrysmod.org.
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Ttssattsr,
Wed 10 Jun 2009, 22:19,
archived)
Is megastruct a mod site or what?I've tried googling Megastruct and garrys mod together but can't seem to find whatever it is.
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Wed 10 Jun 2009, 22:23,
archived)