Strategy games likes this are familiar on other platforms, of course, but Roman Empire is quite nicely done, with level after level of number-based warfare between adjoining villages/towns. OK, you can't actually see the soldiers' expressions/limbs/weapons as they march in waves to attack everyone in sight - they're just tiny sprites on screen - but the music and constant action help make up for this.

From the Store description:

Roman Empire is a fast paced strategy game where you, as a new Caesar, will conquer Europe. You will have for it almost 500 years, starting in 753 BC and finishing when Rome was at its greatest extent - around 117 AD.

Drag your units between cities to attack enemies or defend your cities from attack. To win, use the right tactic and take over all villages and cities.

Nicely done. Here are some screens from my own gameplay:

There's some crazy re-writing of history here, but go with it, you'll get the idea quickly enough!

Don't spare anyone? Gulp...

Effectively you trace the connecting paths for your groups of soldiers, aiming to conquer weaker adjoining villages/towns/cities and then set them to work producing more soldiers/armament - it's all done with numbers, don't you know?

The conflict is starting to heat up, with the sounds of marching and hammering and fighting....

There's even a 'three star' system bolted on, though it's really all about the numbers....

The About screen is, innovatively, shoehorned into the roman-themed 'Did you know' screens!

Clearly a strategy labour of love, you can download Roman Empire for free here in the Windows Phone Store.