Steins; Gate 0 anime doesn't ruin the original visual novel. It continues the story in a meaningful way. The themes and ideas from the visual novel are carried over and developed further. It has its own narrative arc that, while different from the visual novel, still fits within the overall Steins; Gate universe and enriches it.
Yes. Steins Gate 0 builds upon the story and lore of Steins Gate 1. Without experiencing Steins Gate 1, you may be confused by the events, references, and character developments in Steins Gate 0. The first game sets the foundation for the entire series, so it's almost essential to play it before delving into Steins Gate 0.
In my opinion, it doesn't. The anime manages to bring the story of the visual novel to a wider audience. While some details might be lost in the adaptation process, it still conveys the main plot, the emotional depth of the characters, and the mind - boggling time - travel mechanics. It has its own charm and is a great entry point for those who might not have the time or inclination to read the visual novel.
In my opinion, the Steins Gate anime doesn't ruin the visual novel. It might present the story in a slightly different way for the medium of animation, but both have their own merits and can be enjoyed separately.
It depends. If you want to fully appreciate the depth and complexity of the story, playing Steins Gate 1 first is advisable. But if you're just looking for a standalone experience, you can start with 0 and still have an enjoyable time.
Sure, it is. The depth of the story, the choices you make, and the emotional impact make it worth your time. The visuals and soundtrack also add to the immersive experience.
Sure. It has multiple endings. These endings range from positive, where the characters achieve their goals in some way, to more tragic ones. The different endings are a result of the various choices the player can make during the course of the visual novel, which makes each play - through a unique experience.