The Campaign Builder's Guild

This looks pretty cool!

I can't do Thursdays at all, unfortunately

Woops, I didn;t subtract -1 from my 6 on first hit die, should be 10. Rolled a 6 on my second. The +1 is just the base +1 BAB that everyone starts with, opposed to my +2 with a 2h Sword. Halflings get "deadly" ranged attacks but I'm not sure what that actually entails.

A wild Llum has appeared! I'd love to play if it's no issue, as I have mentioned I really want to try playing old school D&D.

[ic=Oliver Thistletea]

Oliver Thistletea
Halfling Fighting-Man Level 2
Alignment: Law
STR: 10
INT: 10
WIS: 12
CON: 6 (-1hp/die)
DEX: 11
CHA: 11

Gold: 0gp
HP: 10
BAB: +2 (Two-handed Sword) 1d10 Damage; +1 Ranged
AC: 3
Saves: Death 10, Wand 11, Stone 12, Breath 13, Spell 14
Equipment: Two-handed Sword, Blackcap Mushroom x5, Platemail, Lantern, Flask of Oil x5, Steel Mirror, Standard Rations x3.
Languages: Common
Background: Oliver is a scarred Halfling originally from the Emerald Hills. As a boy he left to see the world, experiencing some intense culture shock of the fast paced and chaotic world he soon fell to indulging in all sorts of narcotic herbs & mushrooms. Eventually he conquered his addiction, but not before it took its toll on his body. Now he seeks to earn some gold so he can return home & retire on a ranch.
[/ic]

[ic=Lorelei Loracan]

Lorelei Loracan
Sun Elf Magic User Level 2
Alignment: Law
STR: 12
INT:  16
WIS: 7
CON: 10
DEX: 13
CHA: 17

Gold:  0gp
HP: 8
BAB: +1
AC:
Saves: Death 13, Wand 14, Stone 13, Breath 16, Spell 15
Spells: Sleep, Charm Person
Equipment: Dagger, Flask of Oil x5, Standard Rations x3. Greesalve x2, Sunfruit x1, Purple Saltberries x1. 50' rope x 5, Mule x1, Bangpowder x 3, 10' pole x1, Saddlebags x1, 3 stakes + mallet x1, wineskin x2.
Languages:Common, Elf, Orc/Hobgoblin/Gnoll, Dwarf, Dragon,
10% Bonus to Experience.
Background: Lorelei is a scion of House Loracan, one of the richest families on the Coral Coast. After spending her first century learning magicks she had decided to venture out and explore the world and gain some real experience outside her families protective bubble.
[/ic]

[ooc]
I can't figure out how to resize the images, but this is what I have so far. Need to finish up some details.
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How are you liking 5e compared to PF?

Nooooooooo, Arnold must be saved!

I love The Adventure Zone. Really great! My Brother, My Brother and Me is by the same brothers and also good.

Reply All by Gimlet is really good.

I also listen to one called The Read. It's very interesting and has good hosts.

Quote from: JohnWDaileyGLE
Didn't you read what I said about ROMAN concrete?  Also, if that's not the answer, then what material is?

So where are all the ROMAN underwater cities then?

Quote from: JohnWDaileyGLE
Fishing and greenhouse farming have been considered, so finding food is not a problem.

Aquaculture, greenhouses (probably aeroponics or hydroponics?), algae farms, seem like they could safely generate enough nutrients. Not sure how dense of a population it could support.

Quote from: JohnWDaileyGLE
Other problems are not so straightforward to solve. In the maximum depth of 500 feet, pressure is added, perhaps close to human tolerance, so what our main facilities need is an architectural shape best suited to withstand that kind of pressure. By deciding the three basic shapes--pyramid, box and dome--which one suits best?

A dome is the most structurally sound shape. A box and pyramid have their own issues. However this also all depends on materials and size.

Quote from: JohnWDaileyGLE
In relation, glass does not react well to added pressure, either. That's why deep-sea diving submersibles have thick windows that are small in area and/or circumference. At a maximum depth of 500 feet, would a window in a permanent underwater city also need to be small and thick, too? If so, by how much?

A window is a terrible idea, it's a structural weak spot. There would be so little to see at that depth that they would not serve a practical purpose. Better off putting LED screens that are connected to a camera.

Quote from: JohnWDaileyGLE
Certain materials withstand pressure differently. Roman concrete has this unique ability to harden as it gets older and keep water out, which may explain how it has survived the past 2,000 years. Would this work in a marine city with a maximum depth of 500 feet, or would something else make for a more durable foundation?

Concrete would not be a suitable material for this application. It would suffer from severe erosion. Other problems would be corrosion.

Quote from: JohnWDaileyGLE
Another problem is how to get a constant supply of oxygen. I could personally suggest planting each main facility with a chimney tall enough to break the surface, but is that feasible?

This would be unlikely to work. A 500ft shaft would have a large pressure differential between the top and the bottom. Due to this free flowing air wouldn't be enough to circulate the oxygen/carbon monoxide safely. A mine uses blower fans that suck air down. This would be feasible but power intensive. This also ignores the structural problems with a 500ft tower rising from the ocean floor. The best solution would be to have air scrubbers similar what the ISS or a Submersible uses.

Quote from: JohnWDaileyGLE
If one wants to spend the rest of his life beneath the surface, he would prefer to be dry. So how does one open and shut doors without drowning the entire corridor in the process?

This is actually pretty easy. Airlocks, just like on spaceships/the ISS. A lot of parallels can be found in space habitat design and underwater design.

Quote from: JohnWDaileyGLE
The one final issue is finding fresh, drinkable water. I have no idea how that could be accomplished.

Water filtration and recycling, like on the ISS. You can convert salt water to fresh water, however as Polycarp said it is expensive and power intensive. Perhaps the location of the underwater base is near a geothermal hotspot and can harness that for energy. Other solutions would be a nuclear reactor.

All that says is that light can reach 200m. Not how much, so that doesn't contradict my point. 0.5% of light is still above 0% of light.

500ft = 152.4 meters.

First Link: Below about 100 meters (approximately 330 feet), most areas of the ocean appear dark.

Second Link: Most of the visible light spectrum is absorbed within 10 meters (33 feet) of the water's surface, and almost none penetrates below 150 meters (490 feet) of water depth, even when the water is very clear.

As she moves downward, the UV, green, and violet wavelengths disappear, and the light becomes an intense, almost laser-like, pure blue.

So basically you have a miniscule fraction of light, only in the blue wavelength left.

0.53% of the surface light reaches a depth of 100 meters (330 feet) & 0.0062% of the surface light reaches a depth of 200 meters

So somewhere between 0.53% and 0.0062% of surface is the amount of light we're talking about.

Graph

So please, link me more.

Quote from: JohnWDaileyGLE
"Is there any particular reason why you'd need windows at all?  At 500 feet, light penetration is probably going to be rather poor.  There's probably not going to be a lot to see except dark water."

500 feet is still within the Sunlit Zone.

0.5% light at 330ft, that's basically nothing.

Market Forces by Richard Morgan is about Lawyers who Death Race to win cases. If you can read his writing its pretty cool.

If you want dark gritty child soldiers, read Animorphs. No joke.

In LotFP, non-Fighter/Dwarf/Elf classes can only Attack. These three classes have other options:

Press: This is a fierce attack made at the expense of defense. +2 to hit, –4 AC penalty.

Defensive Fighting: This is a more conservative attack, emphasizing defense more than offense. +2 AC bonus, –4 to hit.

Also, anyone can not-Attack to Parry for +2AC until their next turn, this is +4 for Fighters/Dwarf/Elf

Some goods that are pretty expensive per weight: platinum (more so than gold), spices (saffron, pepper, etc), gemstones, ivory, drugs/pharmaceuticals; or just something that can't be found in the Solarian kingdom area. Scarcity could make things a lot more expensive.

I don't really have a clear idea of the tech. I mean there's airships and powered armor, but you mention steampunk, electricity, gunpower? and mechanical computers. Speaking of power sources, what powers the airships?

Did the Zhatlani have guns before the airships crossed the Sand Sea?