The SETI: Search for Extraterrestrial Intelligence Gateway to Mars Promo Card is an expansion to the base game SETI which adds a new promotional card to the game.

This card allows players to earn points and publicity by orbiting or landing on Mars or by playing cards that mention Mars in their flavor text. The expansion is part of the Gamefound 2025 campaign and includes a card with a main action that costs 1 credit and can be triggered when players orbit or land on Mars.