How to play Heroes 3 online with friend using HD mod

Using HD mod is absolutely the easiest way to play online with a friend / friends.

What we need:

  • 1 or more friends 🙂
  • install Heroes 3 Complete (the GOG version is preferred)
  • Do not install the game in a “Program Files” folder.
  • then install Horn of the Abyss
  • HD mod is part of HotA

If you have a problem with the installation, write in the comments.

Getting Started:

1. If all components were installed correctly, run HD_Launcher.exe and click “Update”. In the top left is the menu, select h3hota.exe. You have now chosen to play Horn of the Abyss. Your friend must also have the same settings and HD mod version (not for screen resolution). Now click “Play“.


2. Click “New Game” -> “Multi-Player” -> “ONLINE-LOBBY“. The first time you run it, you will need to create an account, it is fast and just enter your email address and password. So click on CREATE ACCOUNT to fill in the data.




Fill in the details and confirm

Fill in the details and confirm.

Click “LOGIN”.

Welcome to the online world of Heroes 3:

To start your first online the game, click “NEW GAME“. In a new window, type the name of the game, password and select the number of players and confirm.

You can set up a game before your friend joins. At the top left, you can select a map template. Jebus Cross is very popular. Click “More options” on the bottom right and select Simultaneous turns (an option of HoMM3 HD, that allows players to make several first turns in game simultaneously).

Set difficulty, water content, monster strenght and your factions or or leave everything random 🙂 .

Now your friend must join the game. He must also create an account and then find your game in the lobby and then click JOIN. If your friend’s name appears, you can finally click “BEGIN“.


  1. AvatarHenrik Elmkvist

    I get that the lobby server is offline

  2. AvatarGelefat

    Hy, I cant connect to the lobby this way, because it send this massage always:
    Reconnection complete. Waiting data from the server.
    I dont know, my registration have completed anyway.
    I have the latest version of Hota, and Homm3 hd+
    Thx Mate

    1. Liso1Liso1 (Post author)

      Hi Gelefat, the server responsible for the online lobby is under a massive DDoS attack. There may be interruptions in its operation. :/

  3. AvatarMikko


    First of all, thanks for the great guide on how to play Multiplayer.

    I have managed to start game with a friend with random map. But we are having a problem when loading saved game, on friends computer who is joining my hosted game, his client crashes every time.

    Do you have guide on how to load multiplayer games also?

    1. AvatarMikko

      And we are using gog version of game (complete) with latest Hota installed on top of that.

      1. AvatarMikko

        Just an update here, reinstall solved this issue.

  4. AvatarAntonio

    I know the lobby is temporary down.

    Do you know if there is an alternative solution in order to play the game with a friend? If there’s any video tutorial online…


    1. Liso1Liso1 (Post author)

      Hi Antonio, try this:

      If you guys have the exact same version of the game (and mods if you use them), do the following if you want a pure TCP/IP connection:

      1) Add the exe of Heroes III to the exception list in your firewalls and antivirus programs so they don’t block the connection.

      2) The host should check his IP address before playing so you can connect. An easy way to do this is to visit this site:

      Then, the HOST goes to Multiplayer – Single Scenario – TCP/IP and hosts a game.
      The GUEST(S) go to Multiplayer – Single Scenario – TCP/IP, then type in the host’s IP address. If the host has created the game and if you did everything right, you’ll be able to play.

      Alternatively, there’s third-party programs like Evolve, Tunngle and Hamachi which emulate a LAN network, which somewhat simplifies the process. Check them out.

  5. AvatarRoberto

    Hi, I installed the HD+ mod just fine but I have troubles installing Horn of the Abyss; whenever I try to pick the game folder it says that the selected folder does not contain the game files, can anybody help me?

    1. Liso1Liso1 (Post author)

      Hi Roberto, on this screen you have to select the folder where Heroes 3 is installed:

      horn of the abyss

      1. AvatarMirt

        I have the same problem with Roberto. I selected the folder that contains Heroes III Complete files, yet it still gives me the error “Selected folder does not contain required files”. The file pathway is for me “C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Heroes of Might and Magic 3 Complete []”.

        1. Liso1Liso1 (Post author)

          Hi, do not install the game in a “Program Files” folder. install the game directly on drive C:\Heroes 3 Compelte

  6. AvatarPope Hamid

    Same problem as Roberto.

    Says the heroes might and magic 3 files are not there.

    Despite placing it in the same folder where I have HoM 3 downloaded from GOG thru your link.

    Any ideas to solve this?

    Tried different folders within the folder as well. Keep getting the same error.

    1. Liso1Liso1 (Post author)

      Hi, do not install the game in a “Program Files” folder. install the game directly on drive C:\Heroes 3 Compelte

  7. AvatarMasha

    Hey thank you for the project

    So, as I am trying to create an account, I fill in all the fields and then I press the ✓ symbol. After that, nothing happens, I press the symbol again and again but it just doesn´t seem to react at all. What could be wrong?

    All the best to you!

    1. Liso1Liso1 (Post author)

      Hi Masha, yes, I know about this problem, unfortunately it’s a bug on the part of HD mod and its servers. There is nothing I can do about it, we just have to wait. Please try again later.

  8. AvatarJin

    Same here. I bought the game from and followed the instructions. I cannot seem to create an account.
    Has this been fixed or do we need to wait longer?

    1. Liso1Liso1 (Post author)

      Can you send a screenshot of the error report? I’ve now tried to add a new account and everything works.

  9. AvatarRyszard

    Hi there, I cant create account as it saying “lobby sever is offline now. try again latter” but I can see guys on twitch currently playing. Any ideas how to fix it?

    1. Liso1Liso1 (Post author)

      Hi Ryszard,

      my online lobby works fine. You must have the Horn of the Abyss modification, an updated HD mod, and HD+ enabled. Submit a picture of what your error message looks like.

      hota online lobby

  10. AvatarRyszard

    Hi Liso, Please find below links to screenshot

    So I have opened hd launcher from heroes folder and picked heroes3 hd from top left corner and clicked update but nothing is happening then I have picked H3Hota hd clicked update again but still nothing. I have clicked play. heroes 3 hota started and when I want to create account the problem shows up.

    Update : I can see I have homm3 hd version 5.0 rc76, but rc78 is required so propably thats the problem. do you know how can i update it manualy?

    1. Liso1Liso1 (Post author)

      Hi, you always need the latest HD mod version to play online. Try to deactivate the antivirus for a while and then try to update the HD mod, sometimes the antivirus will stop it.

      Or download latest version from this site:

      1. AvatarRyszard

        I have downloaded it from the link and everything works perfect now. Thank you mate!

        1. Liso1Liso1 (Post author)


  11. AvatarPandaOz

    i have a problem, when ever i open the game a pop up shows and say that i need to update the game.
    if i choose to update then its leading me to an error messeage that say that i cant update because of corrupted files.
    any help? 🙁 [ i can send a screen shot if needed.)

  12. AvatarJason

    Im having this same issue what do you mean install the game directly on drive? I don’t know how to do that

  13. AvatarPol

    Is the servers down again? I cant create an account to access multiplayer.


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