RimWorld, the space-colony sim from Tynan Sylvester and Ludeon Studios, received both a major update and a new expansion today. The expansion, titled Ideology, has been in development for the last 15 months and will give players extra control over the story of their colony, while the update changes nearly every facet of the game.

Ideology, which according to a post on Steam partially written by Tynan took 15 months to develop, is meant for the players that created themed colonies. "For many years I've seen players create colonies with their own special themes -- minimalist nomads, raiding pirates, mad cannibals, drug-worshippers," wrote Tynan. "People want to have a sense of authorship over their stories."

To that end, the Ideology expansion will let players create a belief system that members of their colony follow. Players can create a colony of "tree-worshipping cannibals who carve skulls into every piece of furniture, or blind tunnelers who shun the light," just to list two examples given by Tynan.