Mist - an open-source, portable and lightweight Steam client packed with awesome features.

View screenshots of Mist.[imgur.com]

Mist is a free portable, open-source lightweight Steam client written in C# for Windows XP or higher, with a bunch of enhancements and new features built in.
Mist is something I decided to write because I love doing trades, even away from home. However I don't always have Steam available to use, or my laptop.
So Mist is intended to be a solution for that. It's portable and doesn't require Steam, which means that you can put it on a flash drive and bring it anywhere with you.
Mist is built on top of a heavily customized SteamBot[github.com]. And of course, it is open-source as well :)

* Portability - installation not required, and settings are saved in the same directory so you can bring Mist with you on a flash drive
* Run multiple copies - trade between your alt/idle accounts.
* Works with SteamGuard - keep your account secure
* Chat with friends
* Trade with friends
* Augmented trading. Mist will automatically keep track of items added, their amounts, and price (if available on the Steam Community Market)
* Manual and automatic SteamRep checking of friends. You will be notified when chatting with scammers or users with special reputation.
* Convenient links to inventories, trade offers, profiles and the Steam Community Market (all within Mist so you don't need to login anywhere else)
* Chat logging. This can be turned off if you wish. Feature is on by default.
* More to come?

* You can't play games with it.
* You tell me!

Got an idea for a feature? Want to contribute?
Please report all bugs and suggestions by opening a new issue on the Mist repo[github.com] on GitHub. If you would like to contribute and make your own changes, check out how to contribute[github.com].

Mist is open-source and is under the MIT license.
The source code can be found on GitHub. Check it out here[github.com]. You can compile Mist directly from source if you'd like.

You can always find the latest version of Mist on the Steam Group here.
All versions of Mist requires .NET 4.0 to run. A Steam API key is also required. Get one from here.

Mist Website[jzhang.net]
Mist Source Code[github.com]
Feedback/Suggestions and Contributions[github.com]