Arcanum Castle is a reskin of Castle Interior Tileset with several additions, proposed for making wizard labs, mage towers, and so on. Tileset additions include round castle corners and a floating portal.
Aside from this there are 4 additional doors in the hak (2 curtains, one metal door and one solid door) and several placeables (a pillar, a bench, a couch, a wizard desk, a globe with stars and a ceiling with appropriate texture).
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