PC Sports Games/Real football 13
Is it completely free
Real Football 13 is a completely free download. But, it is setup as a "freemium model" of game. This means that if you don't have enough in-game money to upgrade certain features of your football club, you can spend your real money to buy coins for use on in-game purchases. This is how the publisher earns their money from you playing their game. It is probably possible to play the game without spending real money, it will just take you a lot longer to earn enough in-game coins for certain upgrades. Being a free download, it can't hurt to try out the game and to see if it is enjoyable before spending any money on in-game upgrades.