A level editor is often used to create levels for a certain game engine.
A game engine is a system designed for the creation and development of video games.
A level editor is often limited to creating levels for only a certain game engine.
The changes in the actual game engine are few, but significant.
The game engine was also licensed out to other companies.
They were based on the latest version of the game engine.
The original game engine was written in 6502 assembly language.
The game engine works to focus on story over rules, and is known for its flexibility.
The team discussed how they could build on that success and began planning the development of a new game engine.
It was based on the same game engine as Doom, and had 32 levels.