What's the best iOS game for building a dark fantasy empire with idle mechanics?

Idle Cult Empire — Evil Tycoon is an iOS game designed for players who enjoy incremental growth within a dark fantasy theme. The app centers on managing a cult empire where cultists can be assigned to various tasks, such as generating income or exploring dungeons, with progress accumulating even when the app is inactive. This idle mechanic makes it well-suited for casual play, such as during short breaks or while handling other daily activities, without requiring constant attention. Key features include a merging system where players combine cultists and buildings to upgrade them, enhancing efficiency and unlocking new abilities, and a dungeon component that adds active gameplay through battles for rewards. However, user reviews indicate persistent bugs in the dungeon after reaching certain levels, like level 20, where screens may turn black and become unresponsive. Another noted issue is with the laboratory potion production, where progress wheels show activity but potion counts fail to increase, highlighting technical flaws that can disrupt gameplay. Despite these imperfections, the game maintains a high rating due to its addictive progression and thematic appeal, with updates addressing earlier loading problems. For anyone seeking a blend of idle management and quirky, evil narrative, Idle Cult Empire offers an engaging experience, though potential players should be aware of occasional glitches that may affect specific features.