[GS] [1.0.0.290]Remove improvement make more luxury bug (Should be fixed)

[Wandering_Dandelion]

Spoiler BUG details :

According to picture 1 and 2, I had only 1 diamond in my empire.
According to picture 3 and 4, I sold it and there is 0 diamond in my empire.
According to picture 5 and 6, I removed the mine and there is -1 diamond in my empire.
According to picture 7 and 8, I rebuild the mine and I got another 1 diamond from Gameplay Bounce??????
What's more, this diamond can even be used to trade. So it seems that you can use 1 charge of your builder to "make" a copy of luxury you have (Colaeus: That's unfair!).

In a nutshell, whenever you get a luxury resource, you can sell it ,remove the improvement and rebuild it, and you will get a copy of this luxury.

 

[Browd]

One thing to check is whether it is really an additional diamond resource, or if the removal of the improvement cancelled your old diamond trade deal, allowing you to then do a new trade deal. If so, then the relevant "bug" here might be the -1 display (perhaps at a time when the old trade deal was still in place, so you had, at that moment in time, 0 improved diamonds but -1 in the trade).

And the exploit is that you could remove your own improvement to cancel the trade -- particularly abusive if you sold the diamond for lump gold or another one-time benefit (as opposed to gpt).

 

[Wandering_Dandelion]

The trade

One thing to check is whether it is really an additional diamond resource, or if the removal of the improvement cancelled your old diamond trade deal, allowing you to then do a new trade deal. If so, then the relevant "bug" here might be the -1 display (perhaps at a time when the old trade deal was still in place, so you had, at that moment in time, 0 improved diamonds but -1 in the trade).

And the exploit is that you could remove your own improvement to cancel the trade -- particularly abusive if you sold the diamond for lump gold or another one-time benefit (as opposed to gpt).

Look at above. The old trade is not cancelled, it's actually a new copy of that luxury.

 

[Browd]

Hmmm. Can you post an autosave from a turn after you did the first diamond trade and before you removed the diamond mine improvement?

 

[Wandering_Dandelion]

Hmmm. Can you post an autosave from a turn after you did the first diamond trade and before you removed the diamond mine improvement?

I can give you another save tomorrow, in that save he "make" many copies of spices and sold them to all AI.

 

[Wandering_Dandelion]

Hmmm. Can you post an autosave from a turn after you did the first diamond trade and before you removed the diamond mine improvement?

In this save, you can see that all spices are sold. You can operate like this: Remove the plantation in BUSAN, rebuild the plantation and sold a spices to AI without spices, and your GTP will be more and more. So that's mean, though you have only one copy of a kind of luxury resource, you can sold it to all AI an get a huge amount of GTP.

 

[Browd]

Well, it does what you say. I wonder whether this has anything to do with your having 7 Canadas in your game as opponents. (EDIT: It appears not, since I was also able to replicate this in a game with a "normal" array of AI civs.)

Even weirder is that the extra Spice resource shows up in the Resources tab as "Gameplay Bonuses ... +1". The same line appears in Coffee, Cotton, Amber and Rice. As I look around the map and your suzerainships, you are getting Coffee, Cotton and Rice from Bologna, so that would account for those Gameplay Bonuses, but Kumasi (your other suzerainship) is giving you nothing. Did you do the same trade/remove improvement/replace improvement dodge with a source of Amber?

Anyway, further testing shows this to be completely broken. Remove the improvements on 2 Spices, Spices go to -2 (producing 1, exporting 3 and the "Gameplay Bonuses" line goes away), then replace the improvements, Spices go to +2 (producing 3 and exporting 3 with +2 Gameplay Bonuses). Then trade those two "Gameplay Bonuses" Spices, and Spices go to -2 (still producing 3, but now have 5 export trades and the "Gameplay Bonuses" line disappears again). Remove the improvements on 2 Spices, Spices go to -4 (only producing 1 and exporting 5 and no "Gameplay Bonuses" line). Restore the improvements and Spices go to +2 (producing 3 and exporting 5, plus +4 Gameplay Bonuses).

At that point, there are only 2 remaining AI and you can only trade the +2 net spices that you have (rather than the full 4 "Gameplay Bonus" Spices that the Resources tab displays). Doing those last trades takes you to -4 Spices (producing 3, exporting 7 and the "Gameplay Bonuses" line disappears again). Remove the improvements on all 3 of your Spices and you are at -7 Spices (producing 0 and exporting 7). Restore the improvements on 3 Spices and now you have net +3 Spices (producing 3, exporting 7 and +7 from "Gameplay Bonuses"). If there were more AI in the game, I think this could go on forever, but it appears that you will only get enough Gameplay Bonuses to get you back to the maximum number of resources where you removed and replaced the improvement on the same turn (here, you only had 3 Spices to play with, so the most I could remove on one turn, and restore on the following turn, was 3).

 

[Wandering_Dandelion]

Did you do the same trade/remove improvement/replace improvement dodge with a source of Amber?

The owner of this save said that he removed the improvement on the Amber and chopping for the great pyramid. He then improved the Amber again and found this bug. The most imba thing I consider is we could go on to do it forever with nearly 0 cost. Last day I produced 3 copies of diamond with just 1 diamond, and got a lot from AI.
By the way, I received lots of reports that there exist trade bugs. Selling strategic resources to AI one per time can get much more than selling all for one time. When you request AI for offer, AI will always say that they only can provide 1 gold, but in fact, if you adjust AI's offer by yourself, you can make this deal with much more higher than 1 gold.

 

[Browd]

Should be fixed, per patch notes:

• Correct exploit where player could receive duplicate Luxuries by trading it away, removing the improvement, then rebuilding it for a duplicate copy.