《地狱篇》为《阿卡迪亚战记》的独立扩展。玩家可以将《地狱篇》与基础一同游戏，也可单独体验。本扩展新增4个公会：鲨鱼、老虎、乌鸦、蛇。并新增大量的英雄、装备、敌人。

本扩展新增剧情分支系统，故事会随着玩家的选择，而产生不同的走向。全新的事件卡牌也会增加玩家的冒险难度。

本扩展中，强力武器不再是玩家的无脑神器，而是一把双刃剑。强力武器会慢慢腐蚀英雄的神志，甚至改变附近怪物的行为习惯。游戏中，还有一种特殊怪物——天使。玩家可以拯救困在地狱中的天使，令他们与你一同并肩作战。天使不仅仅会影响剧情的走向，甚至可以降低你的冒险难度。

Inferno is a standalone expansion to Arcadia Quest. It is 100% compatible with the original base game and introduces four new Guilds: Sharks, Tigers, Crows, and Serpents. It features new types of heroes, such as Alchemists and Gladiators.

There is a new branching campaign system, and the storyline revolves around the guilds descending into a fiery abyss. There are Brimstone cards that make the terrain risky to navigate, which operate similarly to the Tombstone cards from Arcadia Quest: Beyond the Grave.

A new mechanism called "Damnation" will tempt the heroes with powerful weapons that can corrupt the characters over time or change the behavior of nearby monsters. There are also Angels, which are allied characters for the heroes to rescue, escort or assist. Working with the Angels can affect the branching campaign path system and even allow the player to recruit them for use in later missions.