You can't just take images from Google.

If you want to be sued into the middle of 2050, feel free, but the images on Google aren't free for reuse and you can't just put them into your game.

Even considering that, do you know how you will put them into your game, make them move etc?

What about the fact that the image on Google will only show one view of the building or unit etc and what will you do to view it from other angles?

You'll need either 2d game sprites, free for reuse (check opengameart.org) or 3d models (see the same site).

You'll need to know how to program in C# or javascript to get anything useful out of Unity (note: javascript is not java!)

You'll need to be able to use a 3d modelling program like blender, or draw well in a program such as photoshop or gimp.

You'll need to be good at game design, considering balance and other technicalities not just making up story.

You'll need to be good at network programming (note: not just making a simple chat app or copying and pasting from Google) and you'll need to be aware of scalability.

You'll need to be aware of all the idiosyncrasies of your platforms e.g. Android and iPhone. Only then will you get good performance. Even using Unity you aren't completely shielded from these.

When you're done you'll need to market your game. You can't just put it on Google play and hope people find it, they won't. You'll need lots of money or need to be a very lucky entrepreneur.

Good luck because you'll need it!

Would anyone be interested in helping to build the game?

Recruiting goes in the Classifieds section of the forums, not here.

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If it were as simple as you say, then games wouldn't take as long (and require as many people) as they do. It doesn't matter how smart you are (or think you are), games are a lot more work than you give them credit for. Multiplayer games even more so. MMOs even more so, much much more than you believe.

Can you give any reasonably explanation as to why similar games have development times measured in years, with production teams measured in tens of people, if it were as easy as you think it is?

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Unity will not be enough. Once you have all the assets you need, you can use Unity to put them together and make them do as you want, but in order to create and potentially process/adjust all the assets (images, sounds, etc etc), you will need other software (e.g. Gimp, as was mentioned).

>> The hardest part to all of this will be learning how to use unity and javascript

No, the hardest part is everything after learning to program and use Unity. Learning to drive does not make you a formula one driver and learning to program does not make you a game developer. As yoda once said: "much to learn, you still have"...

Ok. I have your attention. You guys are the experienced developers. You say it takes a lot of people and experience to make a game. I believe you. But when I look at the game it looks easy to me to make. If honestly it does take a lot of people and a lot of time I'll drop it. But I'll explain again.
I use a wallpaper for the kingdom. Designate spots for you to build buildings. I need visual art work for each building. 20 buildings. All the game mechanics are done. All it needs is coding. World map is a plain flat surface with resources to gather, kingdoms of other players and monsters to hunt. Can it really be that hard and time consuming? If I were to draw on paper and use things on papaer I can make the game on paper in 40 hours or less. Why does it make it so much harder to do on the programming side? You all make it sound like I'm building a hard game. Its not like star craft, wow, lol, charter. Those are hard games. No story. No videos. The game mechanics are finished. Can it really be that hard? :( combat system like chess with 7 units. That's all. U ether move or attack or skip turn. No spells. Turn based. It really can't be that difficult. I could careless for 3d high quality graphics right now. 2d pixel art is fine. 2d in general art is fine. It doesn't need to high quality graphics. Look at mine craft. Candy crush. Simple stupid graphics. Even angry birds. I don't need 3d amazing animation.

So I use unity and gimp. Any other programs I need?

You probably want something to record and mix sound and music as well. (Audacity is free and probably good enough to start with).

And yes, it can really be quite hard, the biggest challenge for you will most likely be to prevent rampant cheating while still keeping the server side scalable and fast. Doing one of those things is reasonably easy if you know what you are doing, doing both at the same time is extremely difficult, The client side programming of those games is fairly straight forward but you still want some high quality artwork (which is both time consuming and difficult to produce)