Derelict is a two player map in Sins of a Solar Empire consisting of 4 stars and 18 planets.
Official Description: Recent reports of space junk floating in a nearby system lead your empire to mount an investigation for salvageable technology. But it seems you are not alone...
Tactics: This map greatly favors the Vasari faction, since they gain the ability to jump directly between stars earlier in the tech tree than the other factions, and their Jikara Navigators can easily reach the valuable uncolonizable gravity wells before enemy colony frigates can. This allows Vasari to access the majority of the map's resources long before the other factions. This map has a high degree of randomness, and sometimes will be very resource rich or resource poor, so your strategy will otherwise vary dramatically based on the whims of the random number generator.