Let's talk about Diadem mechanics

[Ceasaria]

Purple Worm can spawn only at night because of Gigantopitheque (he goes out at night to eat them)
With a teamate, we tried many things like clear Gigantopitheque fates, clean all fates in his area without touching gigantopitheques (or the opposite).
This work sometimes, but not every time.

For Basilosaurus, it spawn with Fog (everytime or not ?), but it is practically certain, it spawn if players kill his babie too.

So, do we have many conditions possible for each rank star ?
Is every good action up the probability to see such rank star ?

The other thing I know is, we can't have simultaneously more than one rank star on the field.

I need to find out more !

[Remedi]

So I Noticed again brachiosaur spawning with fog during early morning period
I also noticed the following things
Emergency mission spawned as soon a we killed a rank IV enemy for a FATE (and we were the only one in the instance) also when the mission was concluded we were had 375 evaluation so I think it's fairly accurate to say that the 2 100 bars we fill for the missions are idd an indicator of the value, as such we can calculate the evaluation gained by completing certain objective to force the emergency mission trigger

edit: oh btw dunno if it's known but if an EM is open no Fate can spawn till cleared

[SaitoHikari]

At this point I'm becoming increasingly convinced that all of the boss FATEs are truly random, their spawn condition is determined by weather and also perhaps time of day for some of them. The main thing that convinces me of this is how they will spawn during Matron too, when people aren't doing FATEs there at all.

So far, the only confirmed one is Brachiosaurus spawning during Fog, so I'll need observations for all of the others.

[Ultimatecalibur]

Noticed that certain mob types and their FATEs are time based and other mob types are weather based.

Gigantopithecus (Tier 2) spawn at night.
Westerly Sanuwa (Tier 3) and Easterly Sanuwa (Tier 4) spawn in windy weather.

I believe one of the hints for Secret of the Lost Legend might be the spawn of the single non-FATE Baby Brachiosaur. Seen one before every Secret even if slaughter is not up.

[Remedi]

2 non FATE babies spawn during the morning and with fog weather, but aside from that I agree that FATE and mobs are correlated to weather and time

edit: maybe we need to devide the FATEs in sections except the ones that spawn with different mobs?

[SaitoHikari]

Going to bump this up, reformatted the main post a bit. Think we should work on organizing a FATE list next, and maybe add a section on what weather/time of day causes what enemies to spawn.

- Unicorns appear to only spawn between 12 PM - 11:59 PM, and so does the corresponding Darker than the Blackest Witch and Blood Wings FATEs
- Gigantopithecus only appear to spawn at night, perhaps regardless of weather
- Sanuwa only appear to spawn during Gales, perhaps also regardless of time of day

[Zilera]

Heres a chest map i've been working on http://i.imgur.com/9vEWENu.png still far from complete but its got a lot of common locations

[Ultimatecalibur]

Noticed something interesting yesterday during a Matron. When the EM activates no new FATEs will spawn until the EM ends.

[NarikoStar]

Bumping and cross referencing from Reddit-

https://www.reddit.com/r/ffxiv/comme...ther_relation/

I do believe the Boss fates are strictly tied to weather and have chances of spawning in those conditions.

I've been doing a lot of work from home so I've been able to do alot of 'AFK Diadem' sessions with my FC. (For those of you not familiar basically it's just entering, running to the The Missing Gem platform and making sure to move your character every 9mins so you don't disconnect 10mins from entrance. I highly do not recommend unless everyone in the party is obviously on board as you will not get any Lore / objectives complete. And probably angry party members if you sit and do nothing while they are trying to farm)

I keep the map open and tab back every so often to check boss fates / move my character and thus far this list has checked out. I've never seen the fates spawn under any other weather condition that isn't mentioned.

Additionally, I've gotten Hyperelectricity as well by simply afking so I'm still not sold on the evaluation being tied to spawning conditions (it very well could be I have just not seen evidence of it when we have 2+ parties from FC 'afking' getting a 0 eval rating. The only absolute I've seen thus far is if I happen to get the same instance back to back I have ALWAYS seen a Emergency Mission spawn. This leads me to believe that 1 Emergency Mission or Hyperelectricity can occur every 80~100-120minutes. So far I need to run this more to be sure of its occurrence, but personally for me I've had this occur on 4 separate instances where I happened to cue into the same instance I had been in for 60mins prior before with a 0 evaluation. I was able to confirm this by other players who were standing AFK at The Missing Gem who had entered after my initial entered time and were still in the same instance when I re-entered and flew back to The Missing Gem.

And while I cannot myself prove this when I enter a Diadem I always shout for "Last known occurance time for EM in this instance?" in cases where I receive shouts back saying 20~40 minutes ago, I have yet to see it pop within my next 60 minutes in the diadem.

I hope this information helps others trying to crack the likelihood of spawn conditions (my above data still does not disprove the evaluation theory but makes me believe it is more time based rather than Evaluation) I hope others can chime in more so we can figure out a better way of pinpointing!

Thanks!

[Ultimatecalibur]

I hope this information helps others trying to crack the likelihood of spawn conditions (my above data still does not disprove the evaluation theory but makes me believe it is more time based rather than Evaluation) I hope others can chime in more so we can figure out a better way of pinpointing!

It could be a combination just like S rank Hunt marks. A Timer and one or more Conditions.