Aliens: Colonial Marines is the nr. 1 most sold video game of 2013 in the first week after release, in UK. The game was sold better than Dead Space 3.
ACM was nr. 1 in the “top sellers” section from Steam in the first week of the release.
How much is the game played today? It is around on the 40th place in the “TOP 100 most played games on Steam”, today. It means that the multiplayer mode is not very appealing.
It would be great if we could compare this statistic to Dead Space 3. But that is not possible because Dead Space 3 is not available on Steam.
Being the 40th most played game on Steam is .. great. If we look on the chart, most of the games in front of ACM are multiplayer video games.