New Q1SP pack: Arcane Dimensions by various authors

2015 ended with a treat.

https://www.quaddicted.com/reviews/ad_v1_42final.html by https://www.quaddicted.com/reviews/?filtered=sock and various other mappers:

A large-scale single player campaign with several new levels, some of them labeled “test” maps, featuring a whole line-up of new monsters and items as well as a bunch of tweaks and changes to the gameplay. It is also meant to serve as a tool box for level designers.

https://www.quaddicted.com/reviews/screenshots/ad_v1_42final_thumb.jpg

https://www.quaddicted.com/reviews/ad_v1_42final.html