rukkanova/aevum-realm-architect

Aevum Realm Architect is a free role playing game you play by pasting two files into an AI chatbot, ChatGPT, Claude, or Gemini, rather than a piece of software you install and run. Made by a site called Arcanum RPGs, it casts you as a serf with a single copper coin who tries to climb, through trade, war, diplomacy, and scheming, all the way up to ruling a kingdom. The repository contains exactly two files. One is a master prompt, a text file of rules, hidden state tracking, and behavior instructions that you paste into the instructions field of a Custom GPT, a Claude Project, or a Gemini Gem. The other is a Word document called the realm atlas, a roughly 30,000 word encyclopedia describing five nations inspired by different historical cultures, their trade routes, economies, and social structures, which you upload as a knowledge file alongside the prompt. Once both are set up, you simply start chatting to play. A few design choices set the game apart from typical AI powered role play. Combat and other outcomes are meant to be decided by your preparation and planning rather than random dice rolls, resolved instead through a table based on the strength of your forces and the quality of your plan. Your domain, treasury, and military are tracked through a tag based system so your standing in the world stays consistent and legible turn to turn. A mechanic called the Deference Engine enforces a strict medieval social hierarchy, so speaking or acting above your station as a low born character carries real consequences, and the five nations continue advancing their own goals in the background as the game progresses. The README is direct about rights: the repository is public so anyone can read, download, and play the game for free, but no license is granted to redistribute it, resell it, or publish modified copies. Anyone wanting to build on top of the system is asked to contact the creators directly instead.