Everything works apart from the mouse.
What does not
The mouse buttons stop working after you try to purchase creatures in your castle. The mouse pointer works.
What was not tested
Maintainer note: It seems that's an issue after certain wine version. Heroes 3 seems to spawn some windows which in fullscreen mode confuse wine and the windows manager and sometimes the windows you need to click onto are in the background. One way around the issue is to alt tab once (that'd get you to the right window, but every time there's a pop up like when purchasing creatures), the problem will appear again. Another workaround is to run Heroes 3 in virtual desktop. I'll do a regression testing after I'm done with my exams and submit a bug report.
|Operating system||Test date||Wine version||Installs?||Runs?||Used|
|Show||FreeBSD 11.0 x86_64||Jan 09 2017||1.8.6||Yes||Yes||Platinum||Serge Hooge|
|Show||Linux Mint 18 "Sarah" x86_64||Dec 03 2016||1.9.23||Yes||Yes||Platinum||an anonymous user|
|Show||Ubuntu 14.04 "Trusty" i386 (+ variants like Kubuntu)||Jun 29 2014||1.7.20||Yes||Yes||Platinum||Robert Zenz|
|Show||Linux Mint 17.3 "Rosa" x86_64||Apr 10 2016||1.6.2||Yes||Yes||Gold||an anonymous user|
|Show||Arch Linux x86_64||Sep 22 2013||1.7.2||Yes||Yes||Platinum||Bastian|
To get multiplayer working, you need native directplay dlls. The old howto had a link pointing to outdated directplay dlls which cause problems with wine and generally don't work as expected. However with the latest dplay from DirectX 9.0c multiplayer is (almost - see note for details) flawless.
In the wine wiki is described how to get native direct play dlls.
Personally I would recommend using winetricks directplay which installs dplay dlls and sets overwrite in winecfg, however you may choose do install manually those files in which case you need to:
You can now play Heroes 3 in HD, utilizing the full size of your screen, thanks to Heroes3HD mod. It doesn't change anything gameplay wise.
With recent Wine releases, Wine prefixes are set to Windows 7. Currently, it causes rendering issues when HD or HD+ mod are installed.
winecfg and setting the Windows version to Windows XP solves the rendering issues.