Steam, the popular game rental service, is a free online platform for gamers to download and play games.
There are a variety of Steam games available on Steam.
Some are free and some require an in-app purchase.
The most popular Steam game is the free Steam Adventure.
It allows you to explore the world of a game by building your own adventure game from scratch.
This article is a part of a series on adventure games.
Check out other articles on adventure game design and development.
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