Thank you ThinVeil!
It’s hard to gauge as this is my first solo commercial game. Maybe 30% done? I spent 6 months on movement and level design prototyping then blocked in half the levels, did the main char/art sounds, then fully polished a few small areas for a trailer that I deemed “Highest risk”(hardest for me to pull off) before development since if I could do them, I could probably do the rest.
To have a polished trailer early is something I got from Kojima, in his podcast he said the first trailer is more for yourself as a sort of guiding light/motivator, and to get people into your game’s universe.