Star Citizen.
The game was asking for $500k in 2013 to produce a game about space combat and space economies, similar to the old freespace games. It would receive $2.1 million, and was supposed to be out in 2015.
Today in 2021 Scam Citizen is still in alpha. It has now consumed more then $260 million, making it the single most expensive game ever made, more then GTA V's development and marketing budgets combined. The list of features in that game have encompassed entire genres not originally covered by the kickstarter. A fully voiced wing commander love letter, a persistent MMO universe, property management, ships you can walk through, FPS combat, ece. Much of the original list of features is still MIA.
No matter what chris roberts pulls off, it will never live up to the insane hype, and the game has received a LOT of heat for broken promises. Chris himself has managed to burn through $260 million with a microscopic team compared to rockstar with incredibly slow progress. He has also acquired a million dollar house and multiple supercars. The videos made on the game's inevitable collapse are going to be legendary.