Ultima Ratio Regum (video game)

Ultima Ratio Regum (Latin for 'the last argument of kings') is a roguelike created by Mark R Johnson. It was started in 2011 and was intended to be a ten-year project, and has returned to active development since December 2020 after several years without a release. The game takes place in a procedurally generated world around the time of the Scientific Revolution. It tasks the player with trying to "uncover a procedurally-generated mystery in the most culturally, religiously and socially detailed procedural world ever generated", and the game's core technical objective is "nothing short of the procedural generation of culture". The next planned release is the 0.11 version, which will for the first time include a fully procedurally generated path of riddles and clues to be followed.