Codebase — Definition, examples, FAQs, and more

Written by Andruid

Published Feb 18, 2024

Updated Jan 8, 2026

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TL;DR

codebase

—noun

The underlying software that runs a multi-user dungeon (MUD).

What is a codebase in MUDs and MUSHes?

A codebase in the context of multi-user dungeons (MUDs) refers to the underlying server software upon which a game is built.

It encompasses the programming framework and set of instructions that govern the game’s mechanics, such as player commands, combat systems, turn management, skill usage, and event handling.

Essentially, the codebase defines how the game operates and interacts with players.

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Codebase: a brief history

The concept of a codebase has been central to the development of MUDs since their inception. Initially, these were simple text-based games running on university networks, but they evolved significantly over time.

The variety in codebases has led to a diverse range of MUD experiences, as each one can offer different features and gameplay mechanics.

How it's used today

Writers and developers use this term when discussing the technical structure of online text games. It often comes up during conversations about game features or customization options.

Types of games where the term is commonly used include:

MUD, MUSH, RPMUD, Chat RPG, Social media RPG, PvE, PvP, RPI, RPE.


Codebase examples

  • DikuMUD: A popular codebase that has been the foundation for many MUDs, known for its class-based character system and real-time combat.
  • CircleMUD: An evolution of DikuMUD, offering enhanced flexibility and ease of modification.
  • TinyMUD: Focuses more on social interaction and world-building than on combat, representing a different approach to MUDs.
  • LPMUD: Allows for a high degree of customization through its own programming language, LPC, enabling unique gameplay experiences.

See: MUD Resources for many more codebase options.

Myths and misconceptions

  1. A codebase is just a standard set of codes all MUDs use. In truth, each codebase offers unique features and mechanics, leading to varied game experiences.
  2. Modifying a codebase requires minimal technical skill. However, customization can be complex and often necessitates a good understanding of programming principles and the specific language used in the codebase.
  3. All codebases are compatible and interchangeable. In reality, codebases are often built using different programming languages and design philosophies, so transferring components or worlds directly between them is typically not possible without significant adaptation.
  4. Newer codebases always provide a better experience than older ones. While newer codebases may offer updated features, some older codebases are still preferred for their stability, unique mechanics, or ease of use for certain communities.
  5. Players do not need to care about the codebase since it only concerns developers. In fact, the codebase can greatly influence a player’s experience by determining available commands, systems, and interaction styles within the game.


Codebase FAQs

What is the difference between a codebase and a client in MUDs?

A codebase is the server-side software that runs the MUD, handling game logic and player interactions. In contrast, a MUD client is the software used by players to connect to the MUD, usually providing a user interface for sending commands and receiving game text.

Can you modify an existing codebase?

Yes, many MUD codebases are open source, allowing developers to modify and customize them. However, the extent to which you can modify a codebase depends on your programming skills and the specific license agreement of the codebase.

How do I choose the right codebase for my MUD?

Choosing the right codebase for your MUD depends on several factors, including your programming expertise and preferred programming language, the type of game you want to create, and the features you wish to include.

Researching and testing different codebases can help you determine which one best fits your needs.

Are there different types of codebases?

Yes, there are many different types of codebases, each with its own set of features, commands, and mechanics. Well-known codebases include DikuMUD, CircleMUD, and TinyMUD, among others.

How does a codebase affect a MUD’s gameplay?

The codebase significantly affects a MUD’s gameplay by determining the available commands, how combat works, how characters interact, and how the game world is structured and evolves.

How important is choosing the right codebase for my MUD?

The codebase you choose will set the foundational mechanics and capabilities of your game. It will also determine which programming language(s) you’ll be working in.

Consider your technical skill level and the type of game you wish to create when choosing, and don’t be afraid to experiment with more than one before making your final decision.

Can I switch my MUD to a different codebase later?

Switching codebases is possible but can be highly challenging. It typically involves transferring data and adapting to new structures and rules, which can be time-consuming and technically demanding. This is why very few games ever migrate to a different codebase. It is much easier to modify the existing codebase to suit one’s needs.


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