I've returned to playing the MMORPG Dungeons and Dragons Online the last couple of months. It's mostly set in Eberron (with some high-level adventures in Forgotten Realms and Ravenloft, via planar travel).
Yesterday, I saw at least a passing nod to Spelljammer though. In the game, guilds can have airships as their sort of "clubhouse", and you can have various amenities and crew to provide services for guild members. The guild I am in added an Illithid navigator to our airship, and if you click on him, the flavor text he gives as idle chatter is to talk about how his last job before this was as a crewmember on a 35 ton Nautiloid until it was wrecked in an encounter with a Giant Space Hamster, leaving him stranded on Eberron.
I had to stare at it for a moment. . .a Spelljammer reference? An official D&D product putting a spacefaring, spelljamming Illithid NPC in Eberron? It was definitely the first time I'd known of any official D&D work mentioning Eberron as being in the Spelljammer cosmology of the Prime Material Plane.
I've always been a fan of the concept of the D&D multiverse, that all the official settings are tied together via Planescape and Spelljammer, even if some worlds are harder to reach from others.
The times that Eberron had been tied to the rest of the multiverse via planar travel that I knew of was an article in Dragon #371 that discussed using Warforged in other settings, and out of 4 suggested an origin stories, one was that the character was originally from Eberron, but accidentally found a portal to Sigil and from there could go to other world. . .and they can't seem to find a portal back to Eberron (the article seemed to imply that portals to Eberron were rarer than ones from that world, it's easier to leave than to come back). The Menace of the Underdark expansion for DDO in 2012, the one that introduced the Realms to the game, came up with a plotline about Lolth trying to forcibly gain divine access to Eberron (and to prevent the reincarnation of Mystra back on Toril so she could be the new Goddess of Magic), with the only lasting change after her plans were thwarted being a planar connection being blasted from Eberron to the Demonweb and to Toril itself, for characters to travel through. The Mists of Ravenloft expansion from 2018 added Ravenloft (Barovia specifically) and the idea that the Mists can reach Eberron without any problem.
Has anyone else seen official works tying Eberron into the rest of the D&D multiverse/cosmology or run a crossover game that's used methods like planar travel (or spelljamming) to connect Eberron to other world?
