If a concept looks simple it might be because it’s full of holes that will become an issue in the actual project.
Write to your strengths and get someone to cover your weaknesses.
Make sure the characters feel natural. To be more specific I mean natural to their universe.
Some organizations made the mistake of trying to make characters natural to our universe causing their lines to stick out like a sore thumb. Also some of their ideas of natural is cramming memes in.
Research!
Learn everything you can about your subject matter. Writing is where all that random seemingly unimportant information we’ve learned throughout our lives becomes useful.
My advise is going to be from the game side; I have more experience in gaming and this is a part of your project just as important as writing.
1: Get to know what the scripting code can do. Your ideas, no matter how simple or complex, will need to go through the filter that is known as ChoiceScript. It is essential to get a handle on what that code can and can not do.
2: Before you start, figuring out the mechanics of your game will help you keep both on target when making your game and prevent “feature bloat”. Feature bloat is where you keep adding things into the game trying to get more and more into it.
3: Have a firm idea of what type of testing you’ll need and set up the groundwork for that prior to beginning. Some games are more complicated then others and there are many different types of testers here in this community. It will be a much easier path to make sure you have the testers you need in place prior to begin testing then to have to grind the project to a stop to get testing you will need.
There are tutorials for the scripting and tools to use to make the coding easier - the only thing (and this is just my opinion) unless you understand the fundamentals yourself all these wonderful tools will do is delay the problems or change their nature.
I am learning the story/writing aspects that all the others are much more qualified then I to comment on but these gaming aspects hopefully, I can help with.
Right, I will be consistent, and I plan to finish it. Definitely. Thank you for the advice.
Thank you! That was really helpful! I, too, am not exactly leaning towards sharing my work as I like to save it for a surprise. 
However, considering how mostly everyone suggests to publish in WIP, I think I’ll give it a try beside I jump to any conclusions.
Thank you for the great writing tips! I’ll definitely keep them in mind.
Yes, I have noticed that trend in many Hosted/COG games, and I also find it more reasonable. Giving unreasonable branches will lead to nowhere, thank you.
Wonderful advice! I appreciate the tips very much! I can’t thank you enough. I plan to apply all of them.
Hmm, that’s really good considering that I mix up all the steps usually 
Great advice, will really help me proceed better. Thank you.
Do something different. It takes a lot of time and effort to create a game - you might as well have something original to show for it. That doesn’t mean you can’t write in a well-known theme or genre, but make sure you have something new to say. Make it personal, make it real, make it interesting. Don’t just write what you think will sell, or the story will fall flat.
Make your mechanics thoughtful. They should complement the story, not be an afterthought. Everything you set as opposed, every dimension of personality, everything you allow your characters to carry, says something about the world you’ve built.
Every character in a game should be there for a reason. There are no minor characters or placeholders, just characters without as much page time. If someone is dull and two-dimensional, find a way to do without them.
If you do it well, you may aspire to create imaginary gardens with real toads in them.
Rest assured, my idea is really unique and I can be sure that there has been no such Hosted/COG game. I really hope it executes well, thank you for the great advice about the characters. I’ll make sure there are no superficial characters.
I swear, I have never heard something as inspiring as ‘there are no minor characters’. This advice really made my day right now, it’s so warm and genuine. =)
Or make them more interesting.
But conversely, don’t make the mechanics the main point of the game. If every choice is related to choosing the option “correct” for your character, then it’s not really a “choice”, it’s basically a quiz to see if the reader can guess the “correct” answer.
I think the word you’re looking for is “superficial” and not minor. Even if we have minor characters in the story that do not play a major part, if we add sufficient depth and background to their character, it will not go unappreciated. However, if we keep on adding characters that are unrealistic and lack depth, then it’s going to a huge problem.
Exactly. I think @Sashira just put it very well into words. I tend to develope even side characters very throughoughly anyway, though, or rather they just pop into my head and tell me all about their backstory, haha.
This. I so very wish more authors realised this. For me, if the game becomes a quiz, I will not continue it, because I feel this kills the essence of COG, where the story is tailored to the reader’s choices, not the other way around. Thank you.
I guess characters coming up and talking to authors are common because they do with me too! Cheers