UnDungeon is full of text content that describes each world in the closest details and provides the deepest insight into the reasons of events occurring around. Although all dialogs in UnDungeon are influenced by classical RPGs, the player can skip most of them, concentrating on a pure gameplay. It is possible due to a glossary.
The glossary contains information that the players collect during the run. In the beginning, it is almost empty, but the further the exploration goes, the more data appears in it. The glossary contains detailed information on all game aspects from the history of the world to consumable resources. Each article is split into several parts that become available bit by bit after the player finds corresponding log files. Most articles are written in a style of reports by UDN (United Network of Defence) - an organisation that exists since the very beginning of the Earth, actively explores the world, and is interested in Heralds.
Below, you can see an example of such reports. The text is influenced by SCP Foundation.
Code Name: SBJ-07101
Description: SBJ-07101 is a formless creature with a strong deformation of cellular structure and intercellular connections. The subject consists of a muddy viscous mass, has a density of 13.593 kg / m³ and a mass of 100-150 kg. The only noticeable organ in the subject's body is a core in the upper part of the cellular mass. According to an unverified theory, the core creates a field that combines all subject's cells together preventing their final collapse.
The subject can change the form of its body. For instance, it often forms a kind of face with a big mouth and empty eye sockets above the core. Besides, there are some documented cases when the subject formed a kind of hands as well as stretched in height.
The subject's behaviour is similar to hydras: if any object gets into SBJ-07101, it becomes digested. There is a documented fact of digesting a steel rod that was 10 cm thick. It seems that this process is uncontrollable. And it is the main reason of constant changes of the subject's weight. During the detention, this feature caused █ accidents with injured employees. Perhaps, SBJ-07101 can spit pieces of its flesh using them as a weapon.
The similarity with the human DNA is 99.9%. The subject understands the human speech and it seems that it can answer but all its replies are reduced to messy gurgling. The subject's IQ level is between 100-120 points. Furthermore, some tests showed the presence of such traits as shyness and closedness. The subject easily finds mutual understanding with staff workers and plays with guards. All these facts shows that SBJ-07101 was a human being.
- the subject feels pain when pieces of flesh are separated from its body. Separated pieces with the minimum weight of █kg can exist independently. It is not known whether SBJ-07101 controls them or not, but it can devour them back;
- feels strong pain while separated pieces are incinerated;
- can absorb and accumulate poisons and acids.
Capture Circumstances: the subject was discovered on the territory of the chemical laboratory [DATA REMOVED] in the neighborhood of Louisville, Kentucky. It completely filled a tank used for draining divert chemical mixtures. Initially, the subject was not considered as a living being that resulted in a loss of two agents who made an attempt to reach the core floating in the center of the tank. During the evacuation and transportation, object did not resist but was visibly nervous uttering inarticulate sounds, shaking, and changing its shape.
Interesting fact: the uniform of a junior research assistant and a driver's license in the name of [DATA REMOVED] were discovered in the tank and nearby. All personnel of the laboratory was eliminated.