Is Jesus only gonna save evangelical, fundamental Christians?

I've thought about things along these lines, like what if people from other religions lived a really good, pure life with good intentions, but had never heard about God? Well I think that we will be judged, not on the 'group' or even religion that we are part of, but that God judges us individually, as long as we have the right intentions and live the best possible life that we can, then we'll (hopefully) go to heaven.