G-Darius is a shoot'em up arcade game, released by Taito in 1997. It is the fourth arcade installment of the Darius series and the first in the entire series to feature three-dimensional polygonal graphics. Much like previous installments in the Darius series, G-Darius is a two-dimensional horizontally scrolling shoot'em up set in a fictional future.

The Green Globe -Amnelia, the Green Mother Planet-

In the vastness of universe.

The life born on that planet became civilized, fought, and was at risk of extinction. But the war ended with the appearance of a man. That man's name was Amnelia. People honored their own planet with his name, but no one noticed the presence of the "power" which led him to become a savior.

And time passed...

Amnelia's royalty held a mysterious power for generations, and Amnelia's 21st king Brezza was no exception. A king and genius scientist, he got immersed on his research for new energy sources. Amnelia used a energy generated from the soil called "Kaju", but since "Kaju" was responsible for the flourish of green trees, which could be called the life of Amnelia, it was not a infinite energy source and that had become a serious problem.

In Amnelian year 547, King Brezza finally found a way to produce the ultimate energy source. Amnelia's energy crisis was completely solved. "Soon our mother planet will be unable to sustain our prosperity. When that day comes, I promise to give everyone a new Earth."

People began to emigrate to Amnelia's satellite Blazar, and 50 years have passed. It is an era where humankind seems to have mastered peace.

However. the same mistake from 600 years ago was about to repeat itself...