SteamBot is an open-source C# library for creating bots for Steam (Valve's gaming platform).
SteamBot was original developed for use on scrap.tf and released on Github for others to extend and use.
It is used to interact with Valve's gaming platform, Steam. It's biggest usage has been to develop automated trading bots for TF2, DOTA2 and the items those games contain. I can also be modified to handle Steam Trading cards and games.
In addition to the source code and bug reporting tool being available on GitHub, the Steambot developers and users utilize /r/Steambot to discuss bugs, enhancements and support new users.