Fallout 3 is one of the best games available in the market today. Many may not know it but still those who know love 
this game. I spend many hours(More than 30) playing that game.
Even I did I was not able to get all the achievements.
Oh I forgot which achievements I was talking about. Fallout 3 is powered by Games For Windows Live. It adds achievements in your Gamescore.
I found this hack somewhere screwing around and after that I googled it and found I was not alone.Before this hack my gamescore was 750 and after it it was above 1700. 
Here is a hack to get 50 first achievements without doing any hard work. 
- Run Fallout 3.
- Go to main menu and press boss key (`~).
- This will open a command window for game.
- Enter this code. Just change the number one after one like 1,2,3….
addachievement 1
addachievement 2
Like this go on to 50. I was not able to get all but still 50 are enough to get 1000 points.
Here is my gamercard :
