Feasibility depends on your resources, due date, and expectations. It would probably make sense to prototype your game idea first, maybe as a board game, Doung

Feasibility depends on your resources, due date, and expectations. It would probably make sense to prototype your game idea first, maybe as a board game, Doungeons & Dragons style game, or as a choose your own adventure story. If it seems fun, start to migrate it into software. I don't have the reference, but I've read the creator of Mario starts with a key game mechanic (like Mario's jump) and tests it without character art to see if it's fun (for example, black & white rectangles instead of Mario and a turtle).