Lix

Lix is a Lemmings-like fangame created in the 1990s by Simon Naarman. The two major selling points of Lix is that it's completely copyright-free (using it's own character which are a female version of the Lemmings), and it has network multi-player like Lemmings on the Amiga. As a result of this, it is widely considered to be the second-biggest Lemmings engine to NeoLemmix which is the first.