Cards Against Humanity, the crude popular party game, is suing billionaire Elon Musk for $15 million after his company SpaceX allegedly trespassed on and trashed their plot of land on the Texas-Mexico border.

The lawsuit, filed in Texas court Thursday, claims that the “pristine” chunk of land that the boardgame company purchased via crowdfunding in 2017 had been cleared of vegetation and become a dumping grounds for its neighbor, SpaceX’s Starbase.

“Elon Musk’s SpaceX was building some space thing nearby, and he figured he could just dump his sh-t all over our gorgeous plot of land without asking. After we caught him, SpaceX gave us a 12-hour ultimatum to accept a lowball offer for less than half our land’s value,” Cards Against Humanity said in a letter to fans online.

“We said, ‘Go f–k yourself, Elon Musk. We’ll see you in court,’” the company added.

They signed off on the letter “With great vengeance and furious anger, and added a P.S.:“We will also accept Twitter.com as compensation” – poking fun at Musk’s $44 billion purchase of the social media site.

The Post has reached out to SpaceX for comment.

In 2017, when Donald Trump was president, the company launched a supporter-funded campaign to obtain a chunk of land on the Texas-Mexico border to “make it as time-consuming and expensive as possible” for Trump to complete his notorious border wall, according to the lawsuit.

Some 150,000 fans forked over $1 for the campaign, which led to the purchase of the vacant lot in Cameron County near Brownsville. At the time of purchase, the land was “untouched by development nor impacted in any way to affect its natural condition,” the suit claims.

However, over the past six months, SpaceX, who has purchased neighboring lots, allegedly neglected the “no trespassing” sign erected on Card Against Humanity’s land.

SpaceX and its contractors have cleared the land and have been using it as a staging area for massive construction projects in the area, where it stages its rocket launches, according to the lawsuit.

“SpaceX’s abuse of this Property has not only destroyed its natural condition, but has also caused even greater harm to CAH by virtue of the damage it has caused to CAH’s relationship with its paying supporters,” the suit says. 

The lawsuit was first reported by Reuters, which also published articles on mounting complaints from other neighbors about the sudden development around Starbase. Locals have previously blasted Musk for “destroying” the area.

The filing includes before and after photos from Cards Against Humanity’s land.

Photos from an earlier day showing a grassy landscape with ample cacti are juxtaposed with construction equipment and other building materials sitting on gravel.

SpaceX has been accused of violating environmental regulations at the Starbase site by repeatedly releasing pollutants into or near bodies of water in Texas, the Texas Commission on Environmental Quality said last month after an investigation.