I wasnt lucky enough to have this option when you let some players test it out i would like it to come back for any body please recycling old towers
Not sure what you mean by ārecyclingā?
The option to merge or transform old towers has been in the game for about a year now, so you can use that any time you want. To transform a tower put it on your base and use the ātransformā button next to the upgrade button. To merge towers, select the target tower, click āupgradeā and then use the āmergeā tab to merge one or more towers (towers used for the merge can be in storage).
Check this calculator if you want to experiment with it before commiting to a merge/transform in game.
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The towers you want to sacrifice must be lv 10 or more for it to work too. Dropping this here just in caseā¦
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The xp calculators are kinda bonkers.
I put in a level 67 ice flak to improve.
Added a level 25 cannon: -1250 xp
Switched to a l 25 treb: -5511 xp (treb is more than cannon?)
Went back to cannon: -1230 xp (why did it change?)
Added both: -112,741 xp (nowhere near 1250 + 5511).
This is not necessarily to say there is anything wrong with your calculator - Iāve noted several inconsistencies/oddities in the in-game calculator, too.
I can guarantee you it didnāt.
As for the rest, itās not inconsistent at all if you understand how the calculations between merges work, the comparison youāre making with the towers here by and adding up xp deficits makes very little sense, but I donāt really feel like doing a whole post on merge mechanics right now.
Aww man. I was really hoping for a random in depth post about how merge mechanics work. A real shame you wonāt make one
/s
Yeah, 1230 it is, no matter what I do.
Whatever the merge mechanics are, adding a second small tower to a merge, yet still increasing one level, yet getting a 10x cost xp, may be well defined in an algorithmic sense, but hardly makes ācommon senseā.
So ā¦ you wouldnāt want to see a post on merge mechanics by Morreion?
As for recycling, do you mean like remove the towers from storage?
True thatās an option but you have to pay back all the XP. For smaller towers it isnāt much of a big deal, but as you grow merging becomes more costly.
If you are referring to transforming or merging, that function is still there. You can use @Morreion ās web-based version to test out or the original, spreadsheet version I created: NidoGodās Transform and Merge Tool
I tried coming up with an explanation, then gave up because I was struggling with numbersā¦ However it makes sense to me that merging towers will end up in Base xp debt, and thatās not as simple as individual debt A + individual debt B, I just canāt seem to be able to explain how with simple numbers 
Itās however in relation with how much xp you get by upgrading X tower to next level and the xp you got in total by upgrading the sacrificed tower(s) if Iām not mistaken.
If you only get 1 tower level more by sacrificing one tower, and the same 1 level upgrade by sacrificing two towers for instance, the xp of the second tower doesnāt disappear into thin air, it gets added to the xp required to level up your Base level.
In short, it means that the total xp of the second tower wasnāt enough to push tower X past 1 more tower level, but the game canāt just accept the xp disappears since it allowed you to gain a Base level once upon a time.
So it gets added in full to the xp needed to gain a Base level.
Total xp to level up a trebuchet to level 25 =
(Credit @OrcaFrost and @Zamirathe)
Add to this your 1230 debt from cannon and you obtainā¦ Tadaa! 112,741 Base xp debt.
You are also merging lumber towers - which have significantly less value in terms of resources - into a premium ember tower, so you get a penalty merging these towersā¦
Iām speculating though, I donāt remember the official statement when merging was released, itās already been a long time ago and it had many numbers in itā¦ 
More than that Iām getting a migraine trying to juggle with too many numbers 
I hope I didnāt say too much rubbish, that would reflect badly on me even though Iām self-proclaimed mathematically-challenged 
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Insert loud head banging for being an exhausted dumdum
Thanks Orca. I should have known betterā¦
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What the hell is this nonsense post about?
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There are three penalties and which are conditionally applied depending on the nature of the merge/transformation:
-
Immediate value penalty upon initiating the merge/transform
-
XP debt incurred from sacrificed towers (exacerbated when transforming up tower tiers
-
XP source cap rule. Special case where the value of a sacrificed tower would give more levels than the total XP sacrificed would allow (prevents leveling up by merging)
Is this what you were referring to?
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Donāt try to make sense of this god forsaken thread Nidoā¦ your brain will just hurt for no apparent reason
Ahhhhhh!!! make it stop mike!
Oh for the love of all that is holy ā¦make it go away 
It tears at the mind 
lol
Only Kidding around but it is really hard to follow lol
Hey guys thatās kind of rude 
I did my best to make sense of the numbers that were given by FozzieBear who was confusedā¦ 
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You did better than most!! and Iām just impressed you tried 
Trying to work the numbers out on that is painful
I commend you for even trying!
Pg math is pure insanity lol
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Iāll foreword this by saying I am not picking you apart, specifically, @FozzieBear; rather, I am using your post to help explain some of the intricacies of the merge transformation feature and the mathematics/concepts behind it.
The calculators (both mine and @Morreionās) are correct in this case.
This must be a typo or quick scan error.
Also confirmed. Lumbar only towers actually have two groupings within their tower tier (much the same as common red tier dragons did). Cannons and archers are distinct from Mages (R & B), Trebuchet, storm tower, ballistas and lightning tower. The cost and time to upgrade and XP gained are markedly different; therefore, they have different values at the same level. This is exacerbated in the lower levels. Want to verify yourself? You can check an independent source here and here. Also, this is not a recent change as can be verified on Amoebaās site.
This result is not intuitive but does make sense when you adopt the perspective that all transformations and mergers are done as a cumulative tower value transaction. Unless the Source XP Cap Rule is invoked, XP deficit is a by-product of value transfer.
Cumulative tower value is based on the resources (both material and time) corrected for current discount applications (so a towerās value will change over time while held at a constant level). That means that the tower values and cumulative experience in the above transactions are:
Recipient Tower
| Tower | Lv | Value | XP |
|---|---|---|---|
| Ice Flak | 67 | 475,470 | 3,035,021 |
| Ice Flak | 68 | 482,844 | 3,141,021 |
| Difference | 7,374 | 106,000 |
Donor Towers
| Tower | Lv | Value | Conversion Value | XP |
|---|---|---|---|---|
| Cannon | 25 | 13,428 | 12,757 | 107,230 |
| Trebuchet | 25 | 14,007 | 13,306 | 111,511 |
Now the numbers are out of the way, we can see what really happens. Roughly 7.3k extra value is required to bring the Lv 67 flak to Lv 68 and, after the conversion penalty of 5% tower value is applied, the Cannon and Trebuchet will offer 12.8k and 13.3k, respectively. This is clearly enough to gain a level so the tools and game will register this as a viable option. The XP deficit is then calculated as an after thought based on the cumulative XP of the Cannon and Trebuchet, 107,230 and 111,511, respectively. As only 106,000 is granted from levelling a flak from 67 to 68, the excess XP you once had but are sacrificing needs to be added in deficit to your current player total.
Cannon: 106,000 - 107,230 = -1,230
Trebuchet: 106,000 - 111,511 = -5,511
This seems straight forward when outlined this way but only if one accepts the perspective of viewing towers as a unit based on their hidden value.
As for adding both towers at once; there is not enough additional value added by both towers to level the flak to 69 so the value of the second sacrificed tower is needlessly donated to the PG gods and lost in the ether for a pure XP debt. If you were to increase the cannon to Lv 27, this would now provide a cumulative value from both towers to increase the flak to Lv 69 and would incur a lesser -51,541 XP deficit.
Edit: typos and readability
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