There’s a really interesting and active sub-community of Lisp game developers. Baggers, Steve Losh, mfiano, borodust, dto, and 3b are but a few of the recurring names. There’s even a start-up game company building a large non-trivial game in Lisp [0]. A list of games written in Lisp is here [1]. Baggers has a huge amount (>100 videos!) of youtube content on programming the full graphics pipeline in Lisp [2] and he continues to post week to week.
If you have the impression that Lisp is only used by a bunch of academic knuckleheads like myself, check these folks out!
[1] https://github.com/lispgames/lispgames.github.io/wiki/Lisp-G...