Kevin C. Wong

GURPS Mars Attacks (2016) [+]

GURPS Mars Attacks is a 96 page worldbook supplement based on Topps' Mars Attacks property (trading cards plus a movie). It's set in the present with the Martians having conquered much of the Earth but humanity fighting them to a standstill. Campaigns can be human-based or Martian-based and source material is provided for both.

Chapters

  1. Invasion - history
  2. The Face of the Invasion - The Martians, their tech and soldiers
  3. The Will of Man - The human factions and their tech
  4. Join the Fight - Creating PCs, includes racial and character templates
  5. Operation: Earth - Campaign ideas and running campaigns, includes stats for major NPCs

I have no idea how well GURPS Mars Attacks tracks with the source but you do get a lot of background material. Take away whatever you feel about a license for a minor property, GURPS Mars Attacks is a good worldbook and gives enough material to run a 1950's style Martian invasion.