I'm really intrigued to hear more about your game, and to help you with it! I'm a huge lover of Monument Valley's labyrinthine puzzles, and have also played Skyward a lot (got a top score of 314). I'm also a long-time writer with a degree in Creative Writing and extensive experience writing stories, novels, and yes, video game scripts (check out my portfolio to see some of my work!). Over the years, I've played over 1000 games on various systems. I don't just play games, I think about them constantly, and observe them critically, and so I know how to approach video game design as both creative writer AND designer.
I'll make sure the design document for your game is evocative, immersive, and accessible, as well as being grammatically correct. I'll help you refine your ideas and even contribute my own ideas if you so wish. I will continually edit the piece until you're 100% happy with it!
I recently edited and assisted a client with a zombie apocalypse game for android. He left me a glowing review here on Freelance, which you should be able to see on my profile! I hope it helps you make your decision.
Thanks for reading my proposal, and I look forward to hearing from you!