The Astral Gateway

The Astral Gateway is a collection of STL files designed to let you create your own portal to the stars or a mysterious gateway to another dimension. Perfect for wargaming terrain or sci-fi and fantasy RPGs, this set adds a striking focal point to any tabletop.

Files are scaled for 28mm miniatures, but  can be easily resized to suit your needs. The obelisks, in particular, work beautifully at a range of scales.