If a person takes the time to investigate the difference between Christianity and all of the other religions of the world, they will notice a profound difference.
In all the religions of the world, each share a common bond: The requirement of that religion for the participant to perform in such a way, in order to be found acceptable.
Only Christianity declares that there is nothing you can do to earn your salvation, except believe the good news. Jesus Christ bore the sins of all people in his own body while on the cross. He performed all the work, paid the full price, and enables anyone who will believe it, the opportunity to have salvation and eternal life.
This free gift of eternal life is not true in all other religions of the world: