Hi,
I've had more than 9 years of software development in general and 1-2 years with Unity3d game engine in specific. Though I am new to this site, I'm sure I can create a game for you as I've had experience in game development before.
To be realistic, a good game will take a few months to complete. This is roughly what is needed:
- Concept & "World building" & story
- World layout & loading screens
- AI & specific characters & Dialogue system (+ dialogue content)
- Players & progression (skill trees, etc)
- Optimizing for system resources
- Optimizing for mobile
- User interface
- Server backend & sync
- Database for player credentials & player progression
- Security
- Testing & Debugging
- Post (artwork, etc)
This is a rough "sketch" of what is required and these points would realistically require a lot of time, so my estimate is 4-6 months minimum, unless there are several developers.
If you want to hire me then we would need to have a detailed discussion about the long term partnership (idea sharing, define scope, business times, milestones for payment, etc).
Best regards, Alex A.