Games similar to the Mass effect series?

Im a big fan of the series.

I plan to go through all of them again when the triology comes out but until then I was wondering if there is any games on the market that are similar?

Uhm, not exactly the same. But, with Dragon Age you can find similar stuff. But of course, this is more RPG.

Direct answer to your question is none

None, but give Deus Ex HR a try.

Not similar, but maybe Fallout and Deus Ex: Human Revolution are kinda close?

The Walking Dead has the similar desicion making process where each thing you decide will effect the outcome of the game. I enjoy playing both.

Agree with the Deus Ex: Human Revolution recommendations.