From the Store description:
This app offers in-app purchases. You may disable in-app purchasing from the Kids Corner section of your device settings.
REAL PLAYERS. REAL TEAMS. REAL LEAGUES. Welcome to the most authentic football game on WindowsPhone 8. Feel the excitement of every pass, shot, and tackle with new touch controls. Plus, live every moment of real-world football mastery with EA SPORTS™ Football Club Match Day.
FEEL THE PASSION
Featuring 34 leagues, over 600 licensed teams, and more than 16,000 players. From the English Premier League to La Liga and beyond. Plus, for the first time on mobile, listen to commentaries in English, French, German, Italian and Spanish!
BUILD YOUR ULTIMATE TEAM
Earn and trade, or buy and sell FIFA players to create your own fantasy team. Choose your play style, formation, kits, and more. Compete in tournaments to earn coins, then spend them on new players and items to improve your team. Play for free or purchase packs. The choices are endless!
Classic modes like Manager, and Kick Off are available for purchase in-game.
Actually getting the game may be problematic - you'll need roughly 3GB free for the full download and install process, plus you'll (of course) need a phone with 1GB of RAM, ruling out a lot of the budget Lumia handsets.
Here are some glimpses of FIFA 14 in action:
You can download FIFA 14 for free in the Store here. We'll get Ewan onto a full review as soon as possible. Initial impressions are that FIFA 14 is well balanced in terms of freemium/IAPs and that it deserves to be a big success.