SSHIP ver. 0.98 - April 25th, 2024 - DOWNLOAD HERE

[Jurand of Cracow]

Hello and congratulations with this newest release! I apologise if this was asked before, but is it possible to enable the Hard/Very Hard mechanics (army supply system, army morale) on the normal difficulty?

I've heard about the AI being quite hardcore on H/VH, so I am thinking about starting on the normal first. However, I still wish to see these mechanics present.

This would be very laborious. However, I think @Macaras is able to tell you how to enable the previous AI, that was much more tamed. You'd be able to play on VH but with a lenient AI and diplomacy.

recruiting Slavic Javelins as mercs costs 1/3 of recruiting them in castles. a nice discount but maybe unintended.
are the Mongols incapable of building navies?
got Szekes to 30k+ pop with all constructions except Blacksmith and Siege Works yet was unable to upgrade. not sure why.

Slavic Javelins - you're right, I'll fix it, thanks!
iirc Mongols cannot build navies, intentional in SS (maybe to be reconsidered...)

A question for the current version, when is possible convert a city in a castle and viceversa??? In my egyptian campaign i can convert the castle of Asqalan in a largue town, and the fortress of Acre in a city, and the wooden castle of Aqabah in a town BUT for Cairo, Qus, Dumyat and Alexandria can not convert them in castles... is it a bug or is it intentional? And why is it that some do and others don't?

They are too big for conversion. The highest level that can be converted into castle is large town:

building convert_to_castle{
  convert_to convert_to_city
  levels village_to_wooden_castle small_town_to_stone_keep large_town_to_castle
  {
    village_to_wooden_castle city requires factions { northern_european, middle_eastern, eastern_european, greek, southern_european, }
    {
      convert_to 0
      capability
      {
      }
      material wooden
      construction  2
      cost  1250
      settlement_min village
      upgrades
      {
        small_town_to_stone_keep
      }
    }
    small_town_to_stone_keep city requires factions { northern_european, middle_eastern, eastern_european, greek, southern_european, }
    {
      convert_to 1
      capability
      {
      }
      material wooden
      construction  3
      cost  2500
      settlement_min town
      upgrades
      {
        large_town_to_castle
      }
    }
    large_town_to_castle city requires factions { northern_european, middle_eastern, eastern_european, greek, southern_european, }
    {
      convert_to 2
      capability
      {
      }
      material wooden
      construction  5
      cost  4750
      settlement_min large_town
      upgrades
      { 
      }
    }    
  }
  plugins
  {
  }
}