We all like to get games for dirt cheap if possible and you can’t beat free right? Tomb Raider: Underworld has been made available as a free-to-play game in a browser, thanks to Square Enix’s Core Online.
There is a catch. The real “price”? Well, you will have to suffer through an advertisement every 20 minutes. I can live with that I guess. Here is one big plus: No need to worry about a bad Internet connection, because Core Online will pre-load the game onto your system instead of streaming it.
These ads will show up three times an hour, and you can remove those ads by paying a fee, or just get through the game. You can pay a larger sum initially so that the entire gaming experience will be ad-free, or you can pay a certain amount of money for some ad-free game time, and once that time is up, ads will begin to show again.
Source Ubergizmo