4. Cyberpunk 2077

Cyberpunk 2077, developed by CD Projekt Red, had a budget of around $317 million, making it one of the most expensive games ever. The game, set in a dystopian futuristic world, promised high-level storytelling, complex characters, and an open-world experience unlike any other.
Despite its initial launch being marred by technical issues, its unique setting and expansive world have kept it in the spotlight. The subsequent updates and improvements to the game demonstrate the investment in refining the experience and maintaining player engagement.