[How do I make a radio tower?]

I suggest taking a close look at the text files that define furniture & manually building the tower in there.

[Does forage zone sizes matter?]

My crystal ball says: probably

[Is it better to use the modding tools from steam or to download them off the forums?]

All the real mappers use custom tools they programmed themselves.*

 

*citation needed

[How i can edit default map?]

You cannot. You can only overwrite 300x300 tile chunks.

[Any source for the vanilla buildings?]

I am trying to crush dreams here.

To be fair, those were literally released after the question was asked. My answer would have been correct for most of this games history.

[Tiled - Is it possible to add new tiles to the 'fence' tool]

In fact it is entirely possible! I was investigating this possibility just a few months ago. The fence tools are written in LUA, so you should in theory be able to edit them. I don't recall the exact file structure, but just take a look through the tiled files. I suggest you get an IDE like VS Code. It can be a bit intimidating without syntax highlighting.

[How to Create Interstate Overpass/Underpass? Is This Possible?]

You can't make any sort of good ramp. Maybe with a bunch of custom tiles & some sort of teleport mod?
I suggest building rural Michigan style highways.

[Any source for the vanilla buildings?]

No.

Recreate them.

[[WIP] Maps Paris & Subway]

I am prepared to be amazed.

But primed for disappointment.

[Can a map be created manually?]

It's totally possible!

As you can see in the following excerpt from a .TMX map file, it's just a simple* XML structure.

Although you might need to get skilled at running the base64 zlib decompression algorithm in your head. Very* achievable*

<layer name="0_FloorOverlay4" width="300" height="300">
  <data encoding="base64" compression="zlib">
   eJztwTEBAAAAwqD1T20KP6AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACAlwF+iwAB
  </data>
 </layer>
 <layer name="0_Vegetation" width="300" height="300">
  <data encoding="base64" compression="zlib">
   eJztwTEBAAAAwqD1T20KP6AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACAlwF+iwAB
  </data>
 </layer>
 <objectgroup name="0_Lots" width="300" height="300"/>
 <bmp-settings version="1">
  <rules-file file="../../WorldEd/Rules.txt"/>
  <blends-file file="../../WorldEd/Blends.txt"/>
  <edges-everywhere value="false"/>
  <aliases>
   <alias name="lightgrass_n" tiles="blends_natural_01_056 blends_natural_01_060"/>
   <alias name="lightgrass_w" tiles="blends_natural_01_057 blends_natural_01_061"/>
   <alias name="lightgrass_e" tiles="blends_natural_01_058 blends_natural_01_062"/>
   <alias name="lightgrass_s" tiles="blends_natural_01_059 blends_natural_01_063"/>
   <alias name="medgrass_n" tiles="blends_natural_01_040 blends_natural_01_044"/>
   <alias name="medgrass_w" tiles="blends_natural_01_041 blends_natural_01_045"/>
   <alias name="medgrass_e" tiles="blends_natural_01_042 blends_natural_01_046"/>
   <alias name="medgrass_s" tiles="blends_natural_01_043 blends_natural_01_047"/>
   <alias name="darkgrass_n" tiles="blends_natural_01_024 blends_natural_01_028"/>
   <alias name="darkgrass_w" tiles="blends_natural_01_025 blends_natural_01_029"/>

 

[How to edit existing map of a game?]

The answer is: You can't.

The Devs do not provide the raw map files. The map tools allow you to create entirely new maps, or overwrite 300x300 tile chunks of the existing map.

 

[Manhattan map, i need you !]

The game is limited to like 7 stories at most.

[Import to WordEd a vanilla Map]

You do not.

 

You can only completely replace an entire cell.

[Latest TileZed and WorldEd (December 21 2021)]

You fool!

Soon has now been pushed back to the 2050's!

[Latest TileZed and WorldEd (December 21 2021)]

I hope you realize that you have just made them decide to hold off another month.

"some time after the new year." means literally any point in the future. We shall be happy if it happens this year now.

[Grabbing existing in game cells for editing?]

nope

[The game have some problems what i can se.]

Counterpoint:

The game is perfect in every way.

Also you can turn off zombie respawn in sandbox settings.

[Latest TileZed, WorldEd, and Tilesets (April 7 2021)]

10 minutes ago, Eggon said:

What folder is the "Tiles folder that I downloaded"? Is that some folder of the game? Which one? The only "2x" folders in PZ's folder are subfolders of some "fonts" folders which I expect are something different.

TileZed does not have any "Tiles" or "2x" subfolders either.

The link at the very top of this page that says "Tileset Images"

 

[The One Stop TileZed Mapping Shop]

10 hours ago, Bizzer said:

Any idea how to add the new roads to it ( the ones that curve to the side)

You do not.

Devs have not yet released those tilesets,

[Spawn loot in outdoor containers.]

I think there might be a way to create room objects the same way you create foraging zone objects.

[Is there a way expand your cone of vision (so you can see behind you without turning?)]

I see a .getLookAngleRadians()

perhaps there is also a .setLookAngleRadians?

[What file should I tweak to amplify footstep noise?]

Title of the youtube video: 

"Zomboid, but I can't stop yodeling"

[What file should I tweak to amplify footstep noise?]

Having to carry around a bag full of alarm clocks would make the challenge even better.

[What file should I tweak to amplify footstep noise?]

Don't forget to take clumsy. That makes footsteps louder.

And you could set up an auto-hotkey program to constantly press the Q button.

[Comeplete List of Room Defintions (As of 41.65)]

Getting rather a lot now.

Idea: sort through room definitions.
Each definition will be an accordion. When opened it is filled with a grid of the icons for every item that can spawn in it. The background behind the item scaled from red to green based on how likely the item is to spawn.

Allow filtering by item to show only the room definitions in which an item can spawn.