Cold Element
From FreeSpace Wiki
Cold Element is the name of the over-arching continuity covering the campaigns Aftermath, Derelict, Warzone, Twilight, and Blackwater Operations.
Aftermath, Derelict, Warzone and Twilight are fully released campaigns, frequently subject to upgrades, bugfixes and improvements by various members of the community. Some of the upgrades included voice acting.
Blackwater Operations remained in a limbo phase for years, up until the unofficial release of a dump pack.