Have you heard of Gilgamesh? He is a famous guy from a long, long time ago. He was a king in a very old city called Uruk. People started telling stories and writing about Gilgamesh a long time ago because they thought he was very important.
Now, many years later, people still talk about Gilgamesh and he still shows up in books, movies, and TV shows. People like to use him as a character because he was very strong and brave, and he went on adventures.
Sometimes people make up new stories about Gilgamesh, and sometimes they use old stories that people have been telling for thousands of years. They might change some things about the story to make it more interesting or to help tell a different story.
So, when you see Gilgamesh in a video game, a book or a TV show, you know that he is a very old character from a long time ago who is still important to people today.