Samored II wrote:I would suggest you read pages 22, 23, 61, 84, and 85 of Mutants in Orbit.
Let's take a look, shall we?
Page 22: Mostly about orbits, which more or less synchs with what was said on Wikipedia.
Page 23: First paragraph. "Very little remains in low orbit. ... The danger is not just falling victim to Earth's gravitational pull, but activity at that level might attract the attention of military SDI satellites that are still active and programmed to destroy intruders."
Let's look at those satellites, shall we? Now, they talk about a variety of types (communications, Navigation, sensor, surveilance, and defense satellites) on pages 84 and 85, but the interesting bit is that some (as noted about old surveillance satellites) follow an elliptical orbit... which means they traverse several layers of orbital "shells". We see from communications satellites that these come as close as 281 miles to Earth, and as far as 25,000 miles. Furthermore, we know that communications and sensor station satellites... including modern ones... operate in an area between 375-940 miles up.
This area... from a minimum of 281 miles, out to 25,000 miles, MUST be relatively free of debris, and certainly cannot contain the ship-shredders you talk about, or satellites would have an average life of 2 melees. It must also be relatively free SDI satellites... not nearly as free, since the SDIs can FoF things, but relatively so, especially the older ones. On the other hand, the SDIs with the absolute best range are old X-ray lasers. They can manage about 11.5 miles, and cannot be recharged after their 10 shots are up. Modern ones, that do recharge, do about 18,000', or a bit over 3 miles.
Now, going back to page 23, we see that most orbitals are in lunar orbit... around 250,000 miles, but they will go as close as 19,000 miles. Again, the Ring o' Death cannot be between 250,000 and 19,000 miles, or it would shred the ships of the orbitals.
Where does this leave us? The minimum orbital distance is 150 miles... any lower and you start to get atmospheric drag (page 22). The lowest orbit I can find is 281 miles. Things that go as low as 281 miles go as high as 25,000 miles, which is above the "closest approach" of the orbital communities, meaning the entire area between 281 and the moon must be free of "ship shredders", having only SDIs... which max out at 12 miles of range. The ship-shredders must be between 150 and 280 miles from Earth... anywhere else and the setting, as written does not work. However, there are also SDI satellites down around the 150 mark (per page 23), meaning it can't be a solid barrier 130 miles wide.
Since Splynncrth (or other summoners) can teleport things up to the 3600 mile mark... beyond where we know the ship-shredders MUST end for the setting as written to be feasible... they can get into space. At that point, their worry is satellites. However, a long range missile has a range of 400 miles; if we apply the "double in space" rule from the mini-missile launcher satellite (page 87) to long range missiles, this gives a range of 800-3600 miles for long-range missile platforms... 327 times what the best weapons can manage on the kill satellites. And the Kittani have the ability to create autonomous kill-bots of their own, and are a spacefaring race with other planets to test platforms on, so they can easily create such weapons. If you want to limit them to what's written, fine... they get a Dragon Dreadnought, whose lasers have a 2 mile range in atmosphere; triple in space is normal for energy according to MiO, giving them a 6 mile range with guns... and Dreadnoughts carry 16 long-range missiles, plus 8 medium range missiles.
So, they teleport up a Dragon Dreadnought, which eats all of the satellites in the area (since the satellites cannot do enough damage, fast enough, to destroy the Dreadnought... in theory, if it teleport in the midst of 3 Old Xray lasers, it could be destroyed in a single volley... however, there are only a dozen or so left, per page 86). Another Dreadnought comes up. And another. And another. Soon, local space is filled with satellite-eating Dreadnoughts. Sure, they're stuck in space, but supplies can be teleported up and retrieved until the ship shedders can be cleared.
Oooh, the ship shredders. Bar to any technological power getting into space. So, for right now, Splynncrth likes them. What happens when he decides he doesn't? That's why he has Warlocks. See, Warlocks can create large walls of clay, stone, ice, metal. They can create these in pressurized holds, suit up, and drop them toward's Earth... with a bit of a shove to make sure they are headed DOWN. Sure, they get ripped to shreds or disappear at the end of their duration... but they also impart their downward momentum on things, clearing swaths through the debris. For real fun, you can use River of Lava... 210'*35'*35' at its smallest dimensions (cast by a 7th level Earth Warlock), it will destroy small chunks, move things down, and disappear in a few minutes. Or you can create a few iron golems (which cannot be completely destroyed), use Electromagnetism on them, and shove them out an airlock with instructions to "clean up". Give them a contragrav pack and they can stay up there indefinitely. It will take a massive amount of time to do it this way, but since no one will be maintaining the debris field, it will also suffer natural decay.
If Splynncrth wants up, he gets up. If he wants space, he gets space. There is nothing up there that can stop him.