This was built on a basic skeleton I had made for Lispbuilder-SDL. The original intention was to write a game in a somewhat functional style, which may not be apparent from the result.
The archives above only contain binaries, link to the source code is on the game page.
Spring 2016 Lisp Game Jam » Entries » Overpopulation, Or: Divided and Disillusioned We Wander in a World Gasping Under the Weight of Our Folly