MMH5.5 is an unofficial expansion pack for HOMM5 Tribes of the East or HOMM5 Complete and a spiritual successor to the popular WOG modification for HOMM3. The pack will include many new adventure objects, new larger battlefields, new heroes, new classes, new specializations, new skills, new artifacts, new adventure spells, new HD textures and a greatly improved RMG with more than 60 'visualized' Templates. The AI is much more intelligent and calculated much faster. Balance is also greatly improved both for small competitive multiplayer maps as well as crazy XXXL maps with countless epic battles vs Neutrals and AI.

RSS MMH5.5: Preventing Issues in Multiplayer

This article describes any issues the user may encounter when trying to play Might & Magic: Heroes 5.5 in multiplayer and how to solve them.

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Might & Magic: Heroes 5.5 on Discord

WARNING: The new AI cannot be used in LAN, playing with the AI in LAN is only possible with the MMH55-Utility.exe file!

Activating Scripts

First of all, HOMM5 is a game that is 'hard to mod' and can only be modified using script extensions. Scripts are however disabled by default in Hotseat and LAN. (if you only play the game in singleplayer, you won't have this issue). Therefore ARMG maps without scripts activated are completely broken in multiplayer (Hotseat and LAN). All default H5 maps have script activated as well as all the maps that came with MMH5.5, so you don’t need to worry about those.

The easiest way to activate scripts on a newly generated map is by using the reanimation patcher, you can find the shortcut to this tool in your start menu after installation, the operation is self-explanatory: just press patch maps, you can select multiple maps and process them at once.

You can also activate scripts with the latest mapmixer utility by activating the option 'make LAN/Hotseat compatible.'

Lastly, this describes the manual procedure for activating scripts on a single map if you like to work in the editor:

1. Open map with the Map Editor ("File" -> "Open")
2. Search for "MapScript" on the left panel (If you don't see the panel,
then "View" -> "Map Properties Tree")
3. Click "New" button next to "MapScript"
4. Type something to the "Name" (for example: MapScript)
5. Click "OK"
6. Save map ("File" -> "Save")
7. Close Map Editor

Choosing a global network

Tunngle has proven to be very stable and reliable, Gameranger also works well and is currently the most popular platform in our discord community, but you have to use a trick, rename the H5_Game.exe file to H5_Game_original and rename the MMH55.exe file (or MMH55_64.exe) to H5_Game.exe. Some people have reported issues with Hamachi, but since there are so many possible different setups (hardware, OS etc) I cannot say with 100% certainty it is really bad.

Preventing Synchronization Issues

The original multiplayer software for HOMM5 is sensitive to synchronization issues, generally you want the game folders (data folder, maps folder and usermods folder) of both players as much as possible to be CLONES of each other. Here are some tips to prevent issues:

1. SAME VERSIONS - All players must have the same version of the game and MODs. Unless this requirement is met you will get checksum error while trying to join a game.
2. INDEX.BIN and RMGTemp - When generating a map it is very common that a file called "INDEX.BIN" or folder "RMGTemp" will appear in heroes folder/DATA. The file/folder is corrupt and interfere with the game synchronization. It is advisable to check for it (and delete it if exists) each time you start/join a game. You don't need to backup these files, they already exist in the pak files.
3. SINGLE PLAYER CUSTOM SAVES - All players need to have their single player custom game saves removed before joining/creating a multiplayer game. Unless this is done a checksum error will appear upon joining a game. To remove custom saves go to "Single player -> Custom game -> Load game" and delete everything there! If there are too many you can also lookup the folder in windows explorer.
4. SAME EXEs - All participants should use the same EXE versions of the game. For example Might and magic 5.5 comes with 2 exe versions - 32 and 64 bits.
5. SAME MAP - Unless participants play default map, additional maps that you place in MAPS folder have to exist in MAPS folder of the other players too. Otherwise they wont be able to join!
It is also advisable to put only the map file you are currently using and keep the folder clean. Since H55 has demo maps I recommend both players keeping or deleting them all just to be 100% sure.
6. Eight skills - Whenever you start a new LAN game using the 8th skills option you must follow these steps otherwise desync is very likely to happen midgame and turns would not be passed. Also some of the players (that do not have 8th skills on) may have some of their main heroes skills changed/removed when loading save game.

a) Before creating/joining a new or saved game all participants must activate the 8th skills by going Multiplayer -> Hot Seat -> Standard Game and mark the 8th skills option as shown here (Here is how it looks unmarked ).

b) Create/Join the game and play.

c) 8th skills option should be ON before joining a saved game that has been started as such. If one or some of the players join without the option ON game.

Note - 8th skills option is automatically turned off every time heroes V application is closed. The save game do not include a note on how many skills the game started with so check it everytime when loading :).

Comments
synclg
synclg

When i start a multyplayer game and I try to view my charecter game crashes. Also when i go to 8th skills system as u explained there is some sort of doubleing the check boxes (there are to check boxes one over the ather) and i cant check it. When i ckick on the check box it bliks and its still unchecked .... Any ideas whats wrong.

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Menumorut
Menumorut

Read the last sentance

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mmh55 Author
mmh55

I think you loaded from wrong exe file

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kingring_kms
kingring_kms

We have problems with connection. In the beging everything is ok, but some moves later there are more and more lags and then hero moves slower and slower and bots don't move at all. How it can be soluted?

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kingring_kms
kingring_kms

And also out of sync after bot's moves

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mmh55 Author
mmh55

Sorry for late reply but you cannot play LAN with AI unless you use the Utility exe file.

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Hobbes523
Hobbes523

I got this error when trying to use the editor

"The program can't start because um.dll is missing from your computer. Try reinstalling the program to fix this problem."

Any ideas?

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Hobbes523
Hobbes523

Solved it, but now that I'm in, which maps need to have scripts activated, is it only the ones from map editor, or is it all hotseat/multiplayer games? ty

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mmh55 Author
mmh55

scripts only need to be activated if it wasn't done already and you are going to play the map in Hotseat/multiplayer

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ChristineReardon
ChristineReardon

Why arn't the AI heros moving in the map?

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mmh55 Author
mmh55

please read FAQ:

-You cannot play in LAN with AI players (unless MMH5.5 utility.exe is used).

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Guest
Guest

Hello! i installed the game, patched it with the built in update tool and downloaded the ...installer tool from this site but when i wanted to patch some maps for lan play i realized that my maps folder is empty and yet when i enter the game i can start a game without any issue's, the maps added by the 5,5 "patch" are also all fine-

Just what exactly did i do to cause this? ;_;ยจ

I really wanted to update the old maps too but it's kinda hard to do when i can't even locate the map files to have the tools do their work x)

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w00te
w00te

If we would like to enjoy this MOD on LAN/multiplayer. Should we first create a map using MMH55_Utility and then play it using MMH55.exe? Or use MMH55_Utility when playing the map aswell... Im abit confused.

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dredknight
dredknight

Make the map with Utility and play with MMH55_64.exe

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Guest
Guest

So i should create a game in utility.
Have me and my friend join that game and start it.
Then save it
And then close it down and load it in the normal MMH55.e

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Guest
Guest

Hi, so I'm trying to play a LAN game with a friend, with MMG55 utility.exe and everything is fine until someone tries to buy a second hero, anyone has any idea how to fix this? Or how we could play a game, ideally with AI?

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Guest
Guest

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Guest
Guest

Hello. Can someone help us.
We have problem in multiplayer via GameRanger
When i create a map and use Reanimation Patcher on it, and then start the game, my friend cant join it because of : failed to dawnload generated map
What are we doing wrong?

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dredknight
dredknight

Map should be given to the other players manually.

First use this method to activate scripts instead of reanimation patcher -> Facebook.com
Reanimation patcher does not always works.

Second make sure after all is set to clean up your games in order not to have trouble during the game -> Facebook.com

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Guest
Guest

Hi there, we could use some help. In multiplayer we cant end the day around twice a week

It either keeps waiting for the other player to finish endlessly, or on the next day one player doesnt regain movement points and cant end the day himself either.

Any Ideas? We checked all the "sync issues" points repeatedly.
Much appreciated! Cheers

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Guest
Guest

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SaiFeX
SaiFeX

Hi, I have these problem Then i Create game using original H5.5 Map RMG , My friends cant join me-- It says the game cant be downloaded.

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