As the last two posters pointed out, participation in 12 step recovery in no way requires to to be at all religious. I came into recovery agnostic, and remain agnostic, though I acknowledge that there is an element of existence(creation, why we're here, etc) that is beyond my comprehension, or "greater than myself".
The 12 steps do not require that you become religious, but most importantly that you do your best to live a good life and help other people. That's all it really takes to stop using permanently and live a life of happiness. That being said, it does require work.
People will tell you that they do not work for everyone, I disagree. Some people for whatever reason are not willing to do everything that the steps require, but those that do it honestly and thoroughly invariably succeed.
Oh, and 12 step rooms are full of people with unusual "social skills" and twisted senses of humor. You should fit right in.