General purpose combat ships in between M3 and M5 classes and have can mount the unique weapon types of their creating races. An intermediate between M3 and M4 ships which combines the defense of the M3 and the offense of the M4. A greater range of missile can be mounted to them. These ships have substantially higher durability and firepower but less maneuverable compared to The M4 and M5. Bearing more guns and shields than conventional M3 fighters at the cost of maneuverability. This comes at the cost of low speed and maneuverability combined with a large hit box. These ships deal high sustained damage and have shielding that makes mincemeat of most fighters, corvettes and stations. These flagships are as much of a bane to their enemies as the construction cost is to their owners. Ships of this class are very slow, heavily shielded and bearing lethal firepower. Ships of this class are able to economically bring large swarms of fighters (or corvettes and bombers in the case of the Aran, Kyoto and Valhalla) into battle while delivering some capital ship grade damage to enemies at a distance.

Notable features of this incarnation of X3 are the addition of Rapid Response NPC ships, Jump Beacons, war zones and stock exchanges. X3: Albion Prelude was first released in 2011 and the most recent version is 3.3 (2017). This is the main page for all information relating to X3: Albion Prelude.