Game development services encompass the entire process of creating a video game, from concept to completion. This includes writing the game's story and scripts, designing the game's world and characters, programming the game's artificial intelligence (AI) and physics, creating the game's graphics and sound effects, and testing and debugging the game to ensure it is fun and playable. 

There are many different types of video game development services available, depending on the size and complexity of the game being developed. Some common types of services include:

1. Game design: This service involves creating the overall concept and vision for the game, as well as designing the game's mechanics and rules.
2. Game programming: This service involves writing the code that makes the game work.
   Game art: This service involves creating the game's graphics, including the characters, environments, and user interface (UI).
3. Game audio: This service involves creating the game's sound effects and music.
   Game testing: This service involves testing the game to find bugs and ensure it is fun and playable.
   When choosing a video game development service, it is important to consider the size and complexity of your game, as well as your budget. You should also look for a service provider with a proven track record of developing successful games.