Random Events were introduced with the Stellar Phenomena DLC for Rebellion, they are a series of randomly generated events that effect the outcome of planets.
Random Events[]
Coronal Mass Ejection[]
Generates at the system's star (except for black holes) and moves randomly between gravity wells for a period of time. Disables construction and weapons in affected areas for a period of time.
A highly energetic wave of particles ejected from the system's star. Weapons are disabled by the CME and planets affected must delay construction production until it passes.
Gamma Ray Burst[]
Appears randomly outside the star system and moves between gravity wells for a period of time. Damages shields and gives all weapons a chance to bypass shields; also kills a large amount of an inhabited planet's population and limits population growth for a period of time.
Partisans[]
May take place on any planet flipped by enemy Culture. Spawns a fleet of Rebel controlled ships of the previous owners race at the flipped planet who will attack anyone who comes near.
Plasma Storm[]
Generates at a random gravity well and moves randomly between them for a period of time. Works the same as the stationary plasma storm - disables strike craft launch while active.
Magnetic Storm[]
Generates at a random gravity well and moves randomly between them for a period of time. Works the same as the stationary magnetic storm - disables ability use while active.
Economic Upturn[]
Occurs randomly; affects all players. Increases tax income by 50% and trade income by 70% on all owned planets for a period of time.
Economic Downturn[]
Occurs randomly; affects all players. Decreases tax income by 50% and trade income by 70% on all owned planets for a period of time.
Cultural Explosion[]
Randomly affects a single player. All structures which generate Culture get a 25% boost and enemy culture spread is reduced by 50% while this event is active.
Cultural Implosion[]
Randomly affects a single player. All structures which generate Culture get a 30% penalty and enemy culture spread is increased by 40% while this event is active.
Open Rebellion[]
May take place on any inhabited planet that is being affected by enemy culture once allegiance drops to 30% or less. When this occurs, the planet is flipped to neutral (unowned) and an uprising occurs with a fleet of ships spawning at the planet.
Mad Vasari Titan (Stellar Phenomena DLC)[]
A hostile Vasari titan appears at the system's star and begins wandering the system.