[Смердокрыл]

Hey!

I want to create 3 quests:

• they will all be started and ended by the same NPC
• only one of those should appear at once (with same probability)
• they should all be repeatable
• all of them require you to kill some creatures
• a big quest follows them

Right now I have problems doing the following things: 

1. I want the creatures required to be killed to only appear for people who have the quest
2. Having completed each quest once (since they are repeatable) should make a big quest available

Could anyone help me?

[Ausswitz]

yes

[Смердокрыл]

[Смердокрыл]

Anyone?

[Razmataz]

To handle the creatures required being only visible to those who have a quest:

Try using a spell_area that applies either:
A phase change to the player in order to see the NPC
or a spell effect that allows the player to see invisible creatures.
The functionality you're looking for doesn't exist unless you use those two options.

As for the second case, I think the only option you have is to make six quests in all. Three of them are non-repeatable and after they are done, unlock the repeatables individually. When all three of them are done, the big quest is unlocked.