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The other thought I had was in another post about "dungeon/basements" where I said I would prefer if we were given the ability to "purchase" a dungeon/basement that had say.... 3k in storage was 31x31 and even if it came with outter cavern walls you could "change" but not remove.... it would be like a dungeon and you would get a "teleporter token" that you could choose a graphic for from trapdoor to ladder to stairs... or whatever even a few neat "teleporters" like the glowing runes you find in some dungeons..... to a statue to click or a shimmering bunch of sparkles like Wrong.... or other things and you could place this "teleporter" in your house/Keep/Castle and it would then "teleport" you to another server much like green acres where it's just all black and 100's of 31x31 squares... you would get your square and be able to "custom" it anyway you like with select tiles but it would be only one level. you could move the "teleporter" back to your house anywhere on the square... and it would add storage... and not clutter up the landscape of Sossaria with more house's... And if the squares were on sub servers then it wouldn't at all lag up the landscape either. Also considering you would have to "buy" the added space not everyone of course would have one.
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This is reminiscent of two threads on CoB back in the bad old days ....
One was the Underground Dwelling with the Cave / Dungon Theme. I would think this to be some what easy with one exception, the exterior view would need to be negated. The rest should simply be what is already in place with either a Teleporter or a Ladder leading down.
Now to the Other part, one of the plagues of UO (probably most all MMORPG's) is the collection of Items we pack rats have.
In UO it has historically been a real problem and I suspect that we can have the items we have (but who knows maybe the total number of items in UO is lower now with the one house rule than it was in the begining where you could have an unlimited number of tents/houses etc and an unlimited number of bags/items in the house with no decay) because the hardware has been upgraded to overcome the original design.
It was suggested that everyone be given an artifact of some sort that would teleport the person to their home, this home would in essence be an instanced zone for just them (Everquest eventually did this but it sort of (EQ has extreme limits on the number of items)). Now then the number of items and the size of the house etc are no longer interacting with the UO Server per se. So there would be far less reasons to have restrictions on the players. This would allow every account to have a house on every Shard/Facet.
The downside would be the ability to show off ones house, house vendors, community(

)