[UPDATE 2009] FreeTrain was translated quite sometime ago, thanks to people who saw this campaign and helped out! It still only runs on Windows but there is hope of a port to Linux - contact the team via the mailing list if you think you can help. There is a project, website, forum. [/UPDATE 2009]
FreeTrain is a clone of A-Train. I can't find much information right now (please comment if you know where to look) but it's a long-running series developed by ArtDink and is primarily marketed to the Japanese. I remember playing A-Train 3 about 10-12 years ago and quite liking it.
The problem with FreeTrain is that it's only availabe in Japanese. The game needs localizing and translating. I have spoken to the author before and he's open to contributors. From the website:
I wanted to do a proper localization of FreeTrain to English at some point, but the game just doesn't have enough interest outside Japan to justify the effort to myself.
The lack of interest probably stems from the fact all the game material is in Japanese!
There is a mailing list linked on the game page. However, if you are really serious, I suggest contacting the author Kohsuke Kawaguchi directly - email also on the FreeTrain website.
So the first Free Gamer campaign is to get FreeTrain properly localized and translated into English. I don't even know if it runs on Linux. Not the most organised of campaigns but hopefully somebody will check it out anyway!
Update: Ok, I can confirm this is currently a Windows-only game. So the campaign is extended to porting it to Linux as well.