The game's front-end and graphics engine remain largely the same.

The graphics engine was rather unimpressive even at the time of release.

It featured a new 3D accelerated graphics engine at the time of its release.

It makes use of a proprietary graphics engine that was developed specifically for the game.

The game is going to feature new graphics engine and will probably be designed to work on Windows 7.

It was also possible to identify that a different graphics engine had been used to develop the game.

The rest of 1992 was spent tweaking the graphics engine.

"What's the use of a new graphics engine and character models when the view is from so far away?"

Earth-4 is the graphics engine used in Earth 2160.

The graphics engine only really begins to show when the lights go out.