Which naming convention is recommended when writing code for variable names?

The recommended naming convention for variable names in Unity is camel case. This style involves writing the first word in lower case and capitalizing the first letter of each subsequent concatenated word, which enhances readability. For example, a variable that tracks the player's health could be named "playerHealth".

Camel case is commonly used in many programming languages, including C#, which is the primary language used in Unity. This convention helps in distinguishing variables from classes or methods that would typically use Pascal case, where every word starts with a capital letter. Employing camel case can lead to more organized and easier-to-read code, especially in larger projects where clear variable names can prevent confusion and mistakes in the codebase.

Other naming conventions like snake case (where words are separated by underscores) and flat case (where all letters are in lowercase without any separators) might be used in certain contexts or languages, but camel case is standard in C# and therefore aligns with Unity's best practices for coding.