Why cant I form a custom empire as a nomad?

[Darksworthyone]

It gives me the option to and even lets me click the button when I meet the requirements but nothing happens when I do, why even give us the option if we cant do it, is it broken?

 

[tribnia]

I tried and I succeed, so did AI.

 

[Darksworthyone]

I tried and I succeed, so did AI.

You clicked the decision to form a new empire? not a in game dejure one, when I click on the option it says I can do it but it says it will have no affects unlike when I'm feudal it list the kingdom's I have that will form my empire.

 

[solamyas]

Forming higher tier title for nomads involve fighting everyone in its dejure. Forming custom empire can't have that phase so I guess it is blocked for nomads

 

[kgptzac]

If I hazard a guess: it's because the way nomads can change de jure border of their empire, there's very little need to use a decision to establish a custom empire. You can already change the name and color of the empire title. There's already a mechanic to change the de jure capital county.

 

[Magil]

The decision has a nomad-specific trigger, i.e. you need absolute or unrestricted dominance to form a custom empire. So it seems intentional that you could form one, if the developers specifically added the trigger to that decision for nomads. If the decision is breaking that's probably not intended.

Edit: Okay, so looking at the code for this decision, I have no idea what the hell is going on. So there's this line:

is_valid = {
...
        trigger_if = {
            limit = {
                government_has_flag = government_is_nomadic
            }
            OR = {
                has_realm_law = nomadic_authority_5
                has_realm_law = nomadic_authority_4
            }
        }
...
    }

Okay, so for nomads, they specifically added triggers. And there's nothing in is_shown or is_valid that even hints that it should be disabled for nomads. However, in the effect line:

effect = {
        if = {
            limit = {
                NOT = { government_has_flag = government_is_nomadic }
            }
            create_custom_empire_effect = yes
            gain_heroic_legend_seed_tooltip_effect = yes
            hidden_effect = {
                legend_seed_new_title_effect = yes
            }
        }
...
    }

It's actually coded to do literally nothing for nomads. Like, the decision is specifically coded to take your prestige/gold/piety and just do nothing, because it only works if your government is not nomadic.

You don't code decisions that way. You'd just make it not show up at all for nomads, or show up and be listed as unavailable. You'd put that "NOT = { government_has_flag = government_is_nomadic }" up in the is_valid block (probably need a custom tooltip for it, or to use a "has_government = nomad_government", but eh). You wouldn't put the "hah, this does nothing" all the way down in the effect line, especially without some sort of alternative. You double-especially wouldn't add a trigger that specifically indicates that it only works if you have the right level of nomadic authority. I really have no idea what's going on here.