Social Prize Games
The arrival of Facebook has seen a massive increase in social gaming. Social games are where you compete against other players around the world. Quite often these games are for fun or virtual coins and gifts rather than big prizes. They may be played online, via Facebook, via mobile apps or on tablets - but their common denominator is that they offer in game purchases so that you can enhance your game play or gift things to competitors.
Skill games, board games, slots and even bingo are available to play. For the most part you can play for free without ever spending any money - if you so wish. Just be mindful of how to get free coins or spins and you'll be fine. Payments tend to be to help you move up levels or purchase extra games and opportunities to play. Costs are not as expensive as traditional online slots and bingo but can mount up if unchecked.