grodog
Hero
In terms of Greyhawk-specific effects, I think you can do all sorts of interesting things with the baseline of a post-asteroid-strike-nuclear-winter for the campaign:
- you could leverage the asteroid/comet strike as part of Paizo's "Age of Worms" campaign arc, either during or after the arc itself, or run the arc after the strike, too: tying the strike to the arc offers all sorts of possibilities, an in particular offers an interesting possible origin for the cult of Kyuss and the sons of Kyuss monsters
- perhaps the strike does trigger a traditional "nuclear winter" extinction level event, but in a magical setting the impact is far less traumatic in terms of the ability the various races/monsters/etc. to survive afterward; the winter could be magical in nature too---perhaps the Land of Black Ice rolls black glaciers southward in response to the strike, or it's all a plot by the gods of winter to turn Greyhawk into a Song-of-Ice-and-Fire-style eternal winter
- perhaps the strike is the cause of the creation of the Rift Canyon, and the RC is now a "brand new" feature in the geography, rife with all sorts of stuff that's never been seen before in Greyhawk
- you'll also want to consider the possibility of PCs getting to explore some famous NPC's sites, which are now of course ruined: for example, perhaps as part of some post-strike quest/adventure, the PCs need to recover an object from Tenser's Castle (detailed in the 1998 adventure _Return of the Eight_), or from Mordenkainen's Obsidian Citadel (not otherwise detailed much in canon)
- a strike like this could also have all sorts of interesting impacts on the metaphysical and planar landscapes of Greyhawk: do one or more gods try to stop the strike, and die in the process? does the strike's impact effect the planar geography, such that Greyhawk's prime plane starts to fragment or break up or does it perhaps bring an entirely new planar geography into the area that's carried along with the asteroid/comet (or perhaps the asteroid has a series of hidden demiplanes within it, etc.)
- the asteroid itself might strike and rebound, creating a new, third moon orbiting Oerth (perhaps like the Chaos moon from the Old World of Warhammer?)
The film "Deep Impact" offers some good inspiration for the possible effects of a near-miss strike: that is, you don't have a full-blown extinction-level event, but instead have a lot of short-term destruction that change a lot of the players but would still allow you to retain whatever aspects of the setting appeal most to you and your players.
- you could leverage the asteroid/comet strike as part of Paizo's "Age of Worms" campaign arc, either during or after the arc itself, or run the arc after the strike, too: tying the strike to the arc offers all sorts of possibilities, an in particular offers an interesting possible origin for the cult of Kyuss and the sons of Kyuss monsters
- perhaps the strike does trigger a traditional "nuclear winter" extinction level event, but in a magical setting the impact is far less traumatic in terms of the ability the various races/monsters/etc. to survive afterward; the winter could be magical in nature too---perhaps the Land of Black Ice rolls black glaciers southward in response to the strike, or it's all a plot by the gods of winter to turn Greyhawk into a Song-of-Ice-and-Fire-style eternal winter
- perhaps the strike is the cause of the creation of the Rift Canyon, and the RC is now a "brand new" feature in the geography, rife with all sorts of stuff that's never been seen before in Greyhawk
- you'll also want to consider the possibility of PCs getting to explore some famous NPC's sites, which are now of course ruined: for example, perhaps as part of some post-strike quest/adventure, the PCs need to recover an object from Tenser's Castle (detailed in the 1998 adventure _Return of the Eight_), or from Mordenkainen's Obsidian Citadel (not otherwise detailed much in canon)
- a strike like this could also have all sorts of interesting impacts on the metaphysical and planar landscapes of Greyhawk: do one or more gods try to stop the strike, and die in the process? does the strike's impact effect the planar geography, such that Greyhawk's prime plane starts to fragment or break up or does it perhaps bring an entirely new planar geography into the area that's carried along with the asteroid/comet (or perhaps the asteroid has a series of hidden demiplanes within it, etc.)
- the asteroid itself might strike and rebound, creating a new, third moon orbiting Oerth (perhaps like the Chaos moon from the Old World of Warhammer?)
The film "Deep Impact" offers some good inspiration for the possible effects of a near-miss strike: that is, you don't have a full-blown extinction-level event, but instead have a lot of short-term destruction that change a lot of the players but would still allow you to retain whatever aspects of the setting appeal most to you and your players.
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