Suggestion Approved. Open For Discussion & Voting

I like it. For the graphic, I would add a picture of a bridge to the island.

I like it too. Maybe (for those who wish) the current Pirate Fortress could be freely "exchanged" to the equivalent level of Town Garden. I would most likely do this ....

I like the esthetics of it - but by adding happiness you are impacting wine negatively as a resource, something the museum already does in part.

That was me. I am planning only wine cities, so obviously, anything that negates my strategy in whole or in part I would reject. I'll sell less wine if you add features that diminish the need for it; You did answer that in part to be fair, but it would need to be very expensive in wine to upgrade and long term it still leaves me an uneasy feeling because it reduces the need for my primary - and only - resource. Again, love the idea aesthetically, but could the gardens not have some other function?

Agreed. Pirate fortress is a breeding ground for cheaters, and happiness is always welcome, especially at later stages like you suggested

I'm going to have to agree with Yrael on this one, incredible, I know
Anyhow, for this idea to work the research would have to be dead last, allowing this in the earlygame would reduce the need of warehouses to protect your wine way too much. Now to go with this the value of this building would have to rather small. If it pass the fortress in possible value it will be considered overpowered. I can hold a top 10 on more or less any server with minimal investment in ambro. The payout of this averages 400k ress per city every 4 weeks. That reduced to hours is roughly 600 ress and hour. This is barely anything, and the happiness to wine ratio is skyhigh in the lategame. This means that for this building to balance out, it would have to reward way less than happiness equaling 600 happiness. Now determining lategame is hard, but I'd suggest the value is somewhere around 1 wine to 1.5 happiness. This makes the value of the fort 900 happiness an hour assuming top 10.
Now I'm not shure 400 happiness (44% of the fort) is a fair number. It find it way too close to the value of the fort of which requires large investments in both premium currency and time to pay off. Though as I said, I do agree that we need a new building on the field. We just have to consider is well first.

Maybe change the piratefortress to a kind of wall against ships?

Like the wall for the land units? it will bring positive things to everybody protection against naval attacks if you are a builder, and a help to defend your port if you are a warrior!

We have talked about it on Swedish server to but i thought it was a god idea instead of piratefortress it come up to my mind!

The previous suggestion wasn't thought through and clearly weren't done by a person with suficient experience in naval combat. Now I won't spoil how to set up a naval composition that litterally ruins the fun in naval warfare here, but this is possible and combining it with a fortress will only make it worse. To add to this only ballons can hit the first-hit line, and the fort would therefore remove one of the highest sources of gs loss.

Also I never defend own harbors. If you're agressive you won't need any defence. Often times no wall is even better than a wall.
A suggestion for another building should have another thread though. I can sit here all day explaining how combat mechanics interact so this thread would quickly get crowded.

I literally laughed at this, good one I must say

Anything that diminishes the impact of Piracy on the game is a good thing in my book. The introduction of Piracy had players leaving the game in droves simply because it provided an easy platform for a form of "cheating." Most (not all) strong players in piracy have multiple "feeder" accounts which they coerce or bribe into helping them reach the top 50. While technically not breaking rules (except maybe those who use ip masking and run the "feeder" accounts themselves) it does come off as cheap.

That aside, for a lot of players the Pirate Fortress is built simply because they have the land plot and nothing else to put there, and building the fortress will increase total score. The missions are weak, and provide only a mild gold benefit for time invested, so the building is only really of any use to those who want to complete in the larger reward.

With regards to this "Gardens" idea, it might be worth considering a similar system, but without the greater reward.

The building levels should provide a small percentage buff to existing happiness levels, rather than a static reward, as this would encourage players to utilize all the existing methods of raising happiness rather than detracting from them. Additionally, as per the pirate mission system, time could be invested in cultivating the gardens, but with a short term happiness buff reward.

This should lessen the impact the Gardens would have on the wine trade (which should placate Darts), as the buff would be temporary, but repeatable with more time invested. Additionally, this could allow for a similar trade off the warehouse had when the supply dump was introduced (1 lvl for every 4) as Moosebabes requested.

As Abeged suggested, the tech should be late game, probably after Utopia would be ideal as early game doesn't really have a needs for additional happiness, while large scale empires require a heavy investment in it. In that regard, it might be worth considering a Town Hall level minimum before the Gardens can be built.

Just my thoughts, anyway - let me know what you think.