I have a question how can I difference a Bronze Dungeon from a Silver or Gold dungeon? I mean from the outside aesthetically speaking.

If you are playing the Aether II Alpha version there has been implemented, currently, only one dungeon (Slider's Labyrinth) so that should solve your question.

If you are playing any of the early versions, you can diferentiate by the following:

Bronze dungeons will have Sentries as normal dungeon enemies

Silver dungeons will have Mimics and Valkyries as normal dungeon enemies (and several floors)

Gold Dungeons will only have the Boss (Sun Spirit) as enemy.

I wondered if in creative if you can die in dungeons. It keeps on sending me a messange aying you can die even if I'm on creative

P.S: this is on a single player world if that helps

Not sure why you are getting any message at all but you can not die in creative mode.

Your just basically invincible and other then that it's the same. You can only break blocks like chests and spawners and so on...

One thing that will be different is that the mobs will not aggro to you.(Try to attack you, in other words.)

In fact, you CAN die in creative mode worlds, and it is fairly simple in any Single player world.

Please follow these steps, exactly as I say, and you will probably be good to go

1) Go inside your desired world, wait for it to load and Press "Esc"

2) Search for the "Open to LAN" button and click on it

3) Change the first button to "Survival Mode" And the second to "Allow Cheats"

4) Press T And type /gamemode survival

5) Jump from somewhere high until you die

Is it at all possible to somehow get dungeon blocks In survival, or are you doomed to spawn them in on creative?

Not sure why you would want to, but if you are talking about locked dungeon blocks that can't be destroyed even by creative users... then there is only one way of getting it in survival. That's using the Continuum orbs. The orbs will give you a random item and it is possible to get locked dungeon blocks from it.

If you are however talking about the dungeon blocks that can be destroyed, you can get them by killing sentries in the dungeon.(Not quite sure where to get Mossy Holystone however as I'm pretty sure no mobs drop it. It should also be protected and you will not be able to break it while in the dungeon to get it.)

Sorry for doubleposting, just adding in some info...

Bronze dungeons will most of the time be found IN islands with a huge tunnel leading outside as the entrance.

Silver dungeons will spawn randomly in the air with lots of aerclouds around it. If you see a floating castle-of-sorts with lots of aerclouds around it, that's a silver dungeon.

That's all I really know, never found a gold dungeon before in 1.2.5 prerelease...

This all are currently NOT implemented in the 1.5.1 Aether II Alpha release and they most likely are going to be changed(Like how Bronze dungeons got changed into Slider's Labyrinth) so this all might not be correct when they are released.

Golden Dungeon can be easily recognized aswell, you just have to search for an island full of Golden Trees, There will be some sort of cave in the middle of it, that's the Golden Dungeon's entrance

The Sliders Labyrinth is the only dungeon currently spawning as there are no other dungeons implemented.