What Christianity offers which other religions cannot? Every religion has its own uniqueness. However, most of the religions have some common grounds to relate to other religions.
Many Christians believe that the Christian faith is not only unique as a religious system but also has some uniqueness in what it offers, which other religions do not or cannot offer. If so, can anyone explain about at least one thing that only Christianity offers, which other religions cannot?
C.S. Lewis answered this question:

During a British conference on comparative religions, experts from around the world debated what, if any, belief was unique to the Christian faith. They began eliminating possibilities. Incarnation? Other religions had different versions of gods' appearing in human form. Resurrection? Again, other religions had accounts of return from death. The debate went on for some time until C. S. Lewis wandered into the room. &quot;What's the rumpus about?&quot; he asked, and heard in reply that his colleagues were discussing Christianity's unique contribution among world religions. Lewis responded, &quot;Oh, that's easy. It's grace.&quot;1

I agree - if I had to summarise it in one word, it would be &quot;Grace&quot;. Most other religions require people to try really, really hard to be worthy enough. Only in Christianity does God himself come to us to make us worthy, not as a reward for our hard work but as a free gift of grace.
I think that is the fundamental thing which distinguishes Christianity from other religions.