From the publishers website:
Immortalis’ is a game set in the current day, but it is a world very different from our own. Colonies and space stations dot the Solar System and the first steps to other stars are about to be taken. You play an Immortal, either part of the public face of the Council of Immortals or hidden amongst the masses. Either way, you work to guide humanity and stop the insidious influence of the Dark Summoners. Dark Summoners are people who can summon entities from the Rift and use them to control mortals like puppets.
Immortals have been around since the dawn of man. In ancient times they were the heroes of myth. However, during Roman times a Council was formed and Immortals decided to let normal mortals define the shape of the world to come. Immortals retreated from sight.
The plan worked well for 2000 years. In secret Immortals worked to limit the damage done by the Dark Summoners. However, the numbers of Dark Summoners grew until the conflict engulfed the world in war in the late 19th century. Secrecy was no longer possible and after the victory of the Immortals and their mortal allies, the Council of Immortals decided to take on a guiding role in the world. It was a Golden Time of art and science and it took humanity into space.
The game uses a fairly simple set of rules and you’ll need up to 5d6 for each player and the GM.