Temkin and his team asked fans of the game, which styles itself as “a party game for horrible people,” to send $15 to be part of the gag. Temkin wrote in a tweet that 150,000 donors signed up within nine hours of the campaign, which began Tuesday. Each will get a map of the land, a “certificate of our promise to fight the wall, some new cards, and a few other surprises,” the company said.