Re: Old Immortal RPG
Legacy: War of Ages basically was a Highlander setting without using the name. There were a few elements similar to the World of Darkness. Vampires were all called Nosferatu, and Warlocks existed as well. Instead of Werewolves, they had Chimerae, which could shapeshift, but had to absorb their mass of living beings (who they impersonated afterwards) every month. Dwimmerlaiks were supernatural horrors. Didn't bblackmoor write this one?
There is a Vampire supplement called War of Ages, which has nothing to do with this game.
As for Immortal: The Invisible War, it had some interesting ideas, but the system was a bit hard to understand. They created a new system when they made a new edition, and they even changed the politics.