Every time I try, the game crashes. Has anyone solved this problem?

Try looking here (scroll down to HOWTO) - https://appdb.winehq.org/objectManager.php?sClass=version&iId=2628

Thank you. I'll try it tomorrow.

I'm having some problems with it. I think the multiplayer in LAN works (I don't have anyone here to try it at the moment but I'll do it), but now I'm trying it to work with gameranger so I'll be able to play without being on the same network. But it crashes when gameranger open it. This is what I get in debug mode: http://pastebin.com/V3nd5kaa

I asked for help on the PlayOnLinux IRC channel and they gave me some clues but didn't manage to solve it. I also recently asked in the wine mailing list. If I manage to solve it I will post the solution here. But if anyone helps here too, he will be very wellcome.

I finally managed to work but not with GameRanger. I installed Hamachi (https://secure.logmein.com/labs/#HamachiforLinux) and Haguichi (http://www.haguichi.net/download/), which makes it easier giving you a GUI.

Now I only have to solve the random crashes. :/

I found (http://www.gog.com/forum/heroes_of_might_and_magic_series/homm3_crashes) that it could be a problem on multicored CPUs, and someone give the solution with imageCFG. But that's for Windows. Does anyone know how to solve it on Linux?

You can either try to set a CPU affinity in Linux or patch game .exe under Windows and then use it on Linux.

I have not seen any crashes on Linux.taskset -c ${CPU_MASK:-1} /usr/bin/wine heroes3.exe