From the Store description:
The galaxy is under attack and needs your help to save it! Command your ship as you seek out and destroy enemies that threaten your planets!
The popular simulator from the Windows 8 Store app has made its way to Windows Phone!
LCARS Trek is inspired by a classic text based adventure game. It has been re-imagined and enhanced for Windows Phone with a 24th century computer interface, as well as great sound effects to further the experience. LCARS Trek lets you control every system on your ship, so your training will be fully comprehensive!
The implementation is first class, right down to bleeps and other Trek sound effects (you can even choose between TNG and Voyager klaxon effects!), though the gameplay itself is perhaps overly faithful to the original. Still, at least you don't have to type in coordinates and vectors all the time!
Here's a glimpse of the game and interface:
You can grab LCARS Trek for free (today, at least, no idea how long it will last) here in the Store. When it reverts, it's only a dollar/99p though....(!)