This page has very little to do with Beyond the Alpha Quadrant 1 or 2. If you are unfamiliar with them, it's no big deal.
"Galaxy ships" (not to be confused with TNG "Galaxy class") are experimental vessels designed to probe the nearby galaxies. Even the terrible Mirror Universe experimented with such things.
The small fleet arrived in the Tareo galaxy, and discovered the region to be populated with robotic computer ships fighting each other constantly. What few actual lifeforms they discovered were in a Zombie-like trance and completely uneducated.
The Human Empire fleet discovered their TWARP engines only functioned as WARP. This was due to the local laws of physics being slightly different from those in the Milky Way. Without TWARP, the fleet had no hope of returning home. The fleet set up a base in a relatively populated area, and educated the locals. Within a year they had built a small shipyard and declared themselves the "Star Embassy" empire.
The Tholian ship of the fleet suffered fewer problems than the others, probably due to its already extra-galactic nature. Apparently the Tholian Home Galaxy is a satellite of a larger galaxy, and the Home Galaxy Tholians designed their ships for extra-galactic travel if necessary. For this reason, the new First Generation of Star Embassy ships slightly resembled Tholian ships. With all the technology problems, the Star Embassy was actually glad they lost only 1 tech level (lowering them to 1X).
Star Embassy ships have the ability to "Dilithium Augment" their phasers. If you spend twice the normal energy to arm a phaser, and you use warp power, you can fire it for x1.5 damage. An overloaded phaser can be Dilithium Augmented, leading to a large amount of damage. You must also spend 1 unit of fuel per phaser box that does this. Star Embassy ships have 1-2 Fuel boxes each with a number inside the box indicating how many fuel units it can hold. (This fuel restriction was removed at 2X; also the new 1X Light Cruiser does not need to spend fuel).
A year or so after setting up their base, the Star Embassy encountered another robot race: the Exconians. There were two general types of Exconian ships, dubbed "Rollers" (because the ships had a tendency to spin in place if there was no targets to kill) and "Tees" (sleek fast scout ships which vaguely resemble the letter T of the alphabet).
After years of fighting and studying the Exconian Tee ships, the Star Embassy eventually built a Second Generation of ships, which resembled the fast Tee design. They finally regained TWARP, but decided against returning home due to the violent nature of their home Human Empire.
Eventually the 9X Silakkans (who warred against the T'kan Empire centuries ago) noticed the Star Embassy and destroyed most of it.
Several small fleets escaped to the Milky Way Galaxy, only to discover they had somehow passed into a Mirror Universe during the trip. They never did learn when exactly they switched to the "Normal Universe". The Federation, at war with the Cardassians at this point, welcomed the Star Embassy refugees. Oddly enough, the Federation had also sent Galaxy Ships to the Tareo Galaxy, but the expedition was never heard from again. Perhaps that expedition also switched, ending up in the Mirror Universe.
That's it. Not much here, and as usual I have 30 hand-drawn SSDs (at least) left over for this project, but they can get thrown into the generic "SSDs waiting to be typed in" bin.
Drop me an email if you like.