So, as you may gather from my username, my name's Nate. My interest in writing first sparked in the second grade. Whenever I had free time, I spent it on the computer typing up stories. My memories are vague, but from what I can remember the stories involved animals going on adventures. Or something. I proceeded writing short stories for fun frequently after that, and as an avid gamer I drew a lot of my inspiration from video games, thinking "oooh this may be a good concept/idea to use." Keep in mind this was before I wanted to seriously write and am well aware of the consequences of plagiarism today. Somewhere around middle school is when I decided to take writing more seriously and aspire to become a published author, but from then until recently, I kept getting SO many ideas for a book and ultimately lost inspiration and confidence in pretty much all of them. However, since high school, the idea of a fantasy world persisted, and have tried creating a fantasy world in so many different ways and forms, but lost my confidence as I did with the others, how ever I am currently in the process of writing one, one which I feel particularly good about. And now, here I am. On a writing forum, seeking to (not exclusively) read and critique other fantasy works, then presenting my own fantasy novel (or the parts of it I have written) when the time is right. Also, I'm from New England. Go Patriots.
Welcome! Plagiarism can be a tricky subject, but generally simply drawing inspiration from a video game doesn't count. So you probably would have been quite safe anyway. Good luck with your novel. You can do it!