As probably everyone who reads this knows, I'm a huge fan of Evil Hat's
Spirit of the Century, as well as just about everything Chad Underkoffler puts out over as
Atomic Sock Monkey Press. Recently, they put out a joint free holiday product for both SotC and
Truth and Justice called
Spirit of the Season! It's a Christmas-themed pulp setting, featuring Nick Saint and his two-fisted Reindeer Men, taking on notorious criminals like Jacques Frost and and Baroness Blackheart. Even if you don't play either game, if you like 30s pulp and Christmas humor, it's worth a look. Did I mention it's free?
It reminded me of another humorous Christmas-themed RPG,
Santa's Soldiers by Deep 7. This is more paramilitary then pulp, but it's still a hilariously chaotic romp through the world of the elves of the Order of St. Nicholas (OSN), Santa's paramilitary defense force.
Santa's Soldiers is a complete RPG, however, and only $8 for the PDF.