   steam is an internet-based digital distribution, digital rights management, multiplayer, and social networking platform developed by valve corporation. steam provides the user with installation and automatic updating of games on multiple computers, and community features such as friends lists and groups, cloud saving, and in-game voice and chat functionality. the software provides a freely available application programming interface (api) called steamworks, which developers can use to integrate many of steam's functions, including networking and matchmaking, in-game achievements, micro-transactions, and support for user-created content
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