To be fair there are quite a few games in the mix that are merely have Linux versions "planned" but not actually available for Linux anywhere (or only available unofficially from third party sites) and some of them won't be getting a Linux version, e.g. Hard Reset Redux... it's a bit unfair to include those games IMO. Still, even without those it's way too big.

Anyway if anyone's interested in trying to help get some of the missing Linux releases here, here are the contact details for the publishers of some of the bigger titles:

----- Contact details: Koch Media/Deep Silver -----
(Metro Redux series, Saints Row series)

Email and postal addresses can be found at:

UK: https://www.deepsilver.com/en/imprint/
France: https://www.deepsilver.com/fr/imprint/
Italy: https://www.deepsilver.com/it/imprint/
Germany: https://www.deepsilver.com/de/imprint/
Spain: https://www.deepsilver.com/es/imprint/
US: https://www.deepsilver.com/us/imprint/

Their support address might also be worth trying: techsupport@deepsilver.com

For the Saints Row games in particular, you can also try contacting Volition using the contact form here: http://www.dsvolition.com/contact/
(that page says to visit SaintsRow.com about the SR games but I was unable to find a contact form or address there, so just use that contact form anyway, or try the support address)

For the Metro Redux games, you could also try contacting the developers, 4A Games. Contact details for them can be found here: http://www.4a-games.com/contact.html their email address is info@4a-games.com

If you use Twitter you can also try asking them there:

https://twitter.com/deepsilver
https://twitter.com/DSVolition
https://twitter.com/SaintsRow
https://twitter.com/metrovideogame

I have sent several emails to Deep Silver as well as two letters, the most recent being around the end of November. In addition I've tried contacting Volition and 4A Games using both the contact forms and email addresses listed on their respective websites. It's also worth asking about getting Saints Row IV and Gat Out Of Hell released here.


----- Contact details: Kalypso Media -----
(Tropico 5, Crookz, Vikings: Wolves of Midgard)

Contact details available (for US/UK/DE) via their website: http://www.kalypsomedia.com/
Twitter: https://twitter.com/kalypsomedia
https://twitter.com/El_Prez (for Tropico)

I have tried contacting Kalypso via email and by post, with no success:

- I tried sending an email to their general contact address but my mails were refused by their mail system with an automated message telling me the address was for general inquiries only and to contact support.
- So I tried sending an email to their support address instead and a little over a week later got a reply back saying that address was for support only & they could not help.
- I then tried sending an email to their business contact address but received a message delivery error.
- I sent a physical letter to them but never received a reply.
- More recently I also attempted emailing someone specific at Kalypso (Simon Hellwig, Global Managing Director). I have received no reply to that so far either but it's only been a few days & at least the mail didn't bounce this time.

Kalypso did however bring the Linux version of Dungeons 2 here a while ago, so there's hope for the others yet.


----- Contact details: Techland -----
(Dying Light)

Contact form at: http://company.techland.pl/contact
Support email address: support@techland.pl or pomoc@techland.pl
Twitter: https://twitter.com/TechlandGames

I sent Techland a message using the contact form on their website but I've had no reply so far. More recently I also sent an email to Techland's support address and they got back to me surprisingly quickly, however they were unable to help. It might be best to try asking using Twitter. There is also a thread on their forums that might be a good place to bring this issue up: http://forum.techland.pl/topic/18-ideas-and-feature-requests-for-dying-light-developers/


As for some other games missing their Linux versions here:

- Age of Wonders 3 seems like a lost cause as the developers blamed their use of the Steam Runtime for not being able to bring AoW3 here (which makes no sense because the Steam Runtime is little more than a collection of libraries from Ubuntu packaged with a start script to make things use those over the system's provided libraries). Still, it can't hurt to keep trying.

- The Linux version of Q.U.B.E. was rejected by GOG for some reason, something to do with Steamworks integration... but my testing of the Steam version shows it to work no differently to the many other games that use the same build for both Steam & DRM-free releases, with it running just fine without needing or interacting with Steam unless it's run through Steam. The Windows version works in exactly the same way, with GOG's build being identical to the Steam version - I'm not sure how or why this could be considered an issue for Linux but not for Windows.

- A newly updated Linux build of Dust: An Elysian Tail was submitted to GOG about 3 or 4 months ago, but there is some unspecified "red tape" holding its release up and there's no other information than that available about it. No idea what's going on there :/ Fez was in a similar situation but that was added a little while ago, so hopefully it won't be much longer for Dust now.