PlayStation 3 FPS sequel Resistance 3 sold 180,000 units during its first month on sale in the US, NPD analyst Anita Frazier has told Eurogamer.

That's a significant drop-off compared to Resistance 2's 385,000 first month total back in November 2008. Resistance 2 went on to sell around three million copies worldwide.

Resistance 3, which picked up a healthy 8/10 from Eurogamer on release, debuted at number four in the UK charts last month, behind Dead Island and Warhammer 40K: Space Marine.

As revealed in yesterday's September NPD report, it entered the US monthly chart at number seven, behind Deus Ex: Human Revolution, Dead Island and Gears of War 3.