Can you do Eureka in FFXI without completing the main story?

Yes. You can take part in Eureka activities without following the main plot. It's like a separate zone with its own rules and goals.

Yes, you can. Eureka has its own independent progression system, and it doesn't strictly require you to complete the main story. However, keep in mind that having a certain level of character development from the main story can be beneficial in terms of your overall skills and equipment.

Yes, you can start the DLC at any time, even before finishing the main story.

Yes. The game allows you to jump into Phantom Liberty regardless of your progress in the main story. This gives players the flexibility to experience the new content whenever they want, whether they are in the middle of the main story, just starting, or have already completed it.

Yes.

Yeah, you can. Eureka is like an optional side - world in FFXIV. It has different quests and challenges that are not directly tied to the main story. So, even if you haven't beaten the main story, you can still enter and start exploring Eureka.

In many cases, you can't raid without completing story missions. Usually, the story missions provide necessary context, skills, or unlocks that are crucial for a successful raid.

No, you typically can't. The main story is often a prerequisite for unlocking alliance raids in FFXIV.

Typically, you can't. The story in a game often acts as a key to unlock new areas, and Path of Fire is likely no exception. It's designed to be part of the sequential experience, so without the story, you're not likely to find a legitimate way in.

Sure. Side quests usually exist to add more depth and variety to the game world. They can be about local issues in different areas of the game, like helping a farmer with his crop problems or solving a mystery in a small village. These don't depend on the main quest's progress at all. You can start and finish them independently.