There are many free games on Steam platform. Some of them are permanently “free to play”, while some others are free for a limited period.
We only present here games that are free with no time limits. There is not always a chance to get a free game key. But you always have the “free to play” game available. Check. Often these are very good games, high quality, well done. Most often these are multiplayer games. Games in which thousands of people play. Why would not you try?
Free-to-play (F2P or FtP) refers to video games which give players access to a significant portion of their content without paying. There are several kinds of free-to-play games, but the most common is based on the freemium software model, thus free-to-play games are oftentimes not entirely free. For freemium games, users are granted access to a fully functional game, but must pay microtransactions to access additional content. Free-to-play can be contrasted with pay to play, in which payment is required before using a service for the first time.
The model was first popularly used in early massively multiplayer online games targeted towards casual gamers, before finding wider adoption among games released by major video game publishers to combat video game piracy and high system requirements. Without upfront payment, publishers may charge money for in-game items or integrate advertisements into the game. (more – wiki)