This is another secret underground lab. There’s a tram system connecting it to other parts of the compounds. This lab works on combining various alien specimens to ‘volunteers’ for whatever villainous purpose you’d like.
There’s a room with animal pens, a biolab with various plants, a general lab with a treatment room and a larger room with individual tanks for combining extracted materials. There are also a few cells to hold prisoners as well as monitoring room and a small break room. An elevator leads to the surface.
Here’s a version without the grid.
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