When the original Destroy All Humans! released, it was met with a favorable (but not spectacular) reception. So it may seem like doing a quick, cheap remaster could be viable, but you have to remember: that game came out in 2005. What was fine to play then just wouldn’t hold up today. THQ Nordic knows this, so it tasked developer Black Forest Games to give it the full remake treatment.
What that means in practice is while the story and voice work has stayed the same, just about everything else has been rebuilt from the ground up. Most notably, controllers have evolved in the past fifteen years, and they allow Crypto to do things today he wasn’t able to do back in the day.
Source: Destructoid Destroy All Humans! wants to make genocide smoother than ever