Hi, there - my name is Amin, came from America.
I've read your brief and can see that you'd like to build a 2D MMORPG game, especially, I've rich experience in MMORPG game design and development, so that can do provide the high-quality product with best solution.
Based on analysis of requirement and from my experience, I offer $8000 / 60 days.
Milestone steps:
1st - Game design in PSD format.
2nd - Game front end development based on approved app design.
3rd -Game prototype with game mechanism core
4th - Game completion.
Of course, my offer is a bit higher than other freelancer's bid, but when you think about the high-quality product for your successful business, I think it's a correct time and reasonable budget.
I am extremely experienced in iOS and Android Game development with 10 years and I am also very strong at Unity framework, as well as game art design.
If you'd like to take a look at my previous works, please check my freelancer profile.
https://www.freelancer.com/u/aashshak
I will do my best in order to realize your ideas into reality.
Please contact me, I hope to discuss this job more details.
Thanks and best regards, Amin.