Ancient Domains of Mystery (ADOM) is a roguelike video game, designed and developed by Thomas Biskup, which was first released in ‹The template Vgy is being considered for deletion.› 1994. The player's goal is to stop the forces of Chaos that invade the world of Ancardia.
Like the original roguelike games, Ancient Domains of Mystery uses ASCII graphics to represent the game world. A later version added the option to play with sound, tile-based graphics, and an overworld map. Most dungeons are procedurally generated, but once the game generates a dungeon, it does not change even if the player exits and re-enters it. (The Infinite Dungeon is an exception, however.)
Biskup ceased development of the game for nine years, but revisited it in 2012. He also resumed work on a sequel, Ultimate ADOM. An engine for future roguelike games. Biskup first made an updated version of ADOM available to sponsors of his crowdfunding campaign. Later versions, beginning with v1.15.2.r60, he released on the Web and through digital distribution services.
Story
Ancient Domains of Mystery takes place in the fictional world of Ancardia, in the mountainous Drakalor Chain. For 6,000 years, it has known relative peace, but recently reports have spread of the appearance of dangerous dungeons and frightening monsters. Khelavaster, a wise sage, discovers an ancient prophecy regarding the Coming of Chaos and propagates it to the peoples of the world. It speaks of a champion who will defend the world from the forces of Chaos in the Drakalor Chain. Hearing of this prophecy, many would-be heroes set out. The player assumes control of one such adventurer. ADOM is famous for its multiple endings which consist of closing the chaos gate, becoming a demigod, or committing a heroic sacrifice to stop the Chaos invasion.
Gameplay
Ancient Domains of Mystery presents an initial choice of one (male or female) player character from twelve races and twenty-two character classes, the combination of which strongly affects gameplay, in both subtle and obvious ways. Among other traits, character development includes experience levels, statistics, and skills. Version 1.1.0 introduced a talent system, allowing further customization of characters, based on a hierarchical system of prerequisites.
During adventures, a player is likely to explore many areas and complete multiple quests. Which quests are available may depend on character experience level or alignment (lawful, neutral, or chaotic). Alignment also affects NPC and deity interaction with the character. How one solves a quest can also affect one's alignment, such that a chaotic character seeking redemption can eventually become lawful through his or her actions (or vice versa).
Ancient Domains of Mystery offers multiple ways of winning, which vary in difficulty. The regular ending that appeared first in Ancient Domains of Mystery development, consists of locating and closing the gate through which the chaos forces infiltrate the game world Ancardia. The player also has the option to enter the gate, providing access to special endings, which are generally considered more difficult to accomplish. Ancient Domains of Mystery's quest-centric, plot-driven structure owes as much to adventure games like Zork as to the hack-and-slash of sibling games like Angband.
Corruption
The forces of chaos that have infiltrated Ancardia corrupt both the surrounding landscape and occasionally the player's character, causing mutations, such as antennae or a tail growing on the player character. Some mutations are helpful, while others make the game much harder; many have elements of both. Players need to be resourceful and adaptable due to the randomness of these mutations. While there are limited opportunities in the game to mitigate or remove corruption effects, taking too long to close the chaos gate causes the corruption rate to increase dramatically. After becoming fully corrupted, the game ends, as the character has become a "writhing mass of primal chaos". The chaotic ending requires the character to be almost fully corrupted.
Besides background corruption, some powerful chaotic artifacts can cause the character to become corrupted merely by carrying them. Other, less powerful chaotic artifacts only corrupt when actively invoked or wielded. Generally, most artifacts and magic items are safe to carry and use, and only the most powerful items affect corruption rates.