The text treatment of the logo should be able to stand alone as it may need to be pulled off the logo simplicity sake; think more like a badge that is self contained (although elements can go beyond it's borders). The core feel would be the Steam Powered Train, Old West feel mixed with the brassy Steam Punk aesthetic.  Feel free to mix in western-styled revolvers as well.

Images are attached showing some logo options we found that are interesting as well as the different levels in the game. Feel free to stray from the logos provided here.

Runaway Train