What a great game! I just loved every minute of it. I completed the game on level 46, but I think level 50 was the maximum. Completition earned me the right to replay with the same character and to get up to level 60. It also unlocked an extra difficulty. There were some sad moments, including a situation where I had to choose between the lives of two of my starting teammates. I thought I could save them both, but in the end, Ashley died.
It turned out; the Reapers are a race of machines that live in the dark space outside the galaxy. Every time an organic civilization would get advanced enough, they would come and destroy it for some unknown reason. The ship that Saren used, the Sovereign, is actually one of the Reapers, and Saren was really under his control. The Citadel itself was a mass relay trough which the reapers would invade. This would grant them a fast way in to the galaxy, and at the same time isolate all of the Council races by disabling the relay network. Off course I had to stop it.
The Protheans actually managed to create their own mass relay which gave me a back door entrance to the Citadel. This allowed me to reach Saren before he could activate the relay to the dark space. I managed to convince him that he was under control of the Sovereign, so he took his own life. The Sovereign didn’t like this, and activated Saren’s implants, which transformed him in some sort of cyborg. While I was fighting him, the Alliance fleet managed to save the Ascension, an Asari ship on which the Council took refuge. After disposing of the Geth ships, they combined their forces and attacked the Sovereign. I defeated Saren about at the same time as the Sovereign was destroyed.
As an expression of gratitude, Humanity was granted a place in the Council as an equal to the other races. Sheppard decided to find a way to defeat the Reapers once and for all. The End!
I strongly recommend this game to everyone even if you don’t like role playing games. It’s really great in almost every aspect.