Who is the publisher of a game in which players assume the roles of characters in a fictional setting and is released for Linux in January 2014?
To the Moon: To the Moon is a role-playing adventure video game developed and published by Freebird Games. To the Moon:  Initially released for Microsoft Windows, it was later ported to OS X and Linux in January 2014, and for Android and iOS devices in May 2017. Role-playing game: A role-playing game (sometimes spelled roleplaying game and abbreviated to RPG) is a game in which players assume the roles of characters in a fictional setting.
Freebird Games