Total Annihilation: The Core Contingency (PC Games, 1998)

The Core Contingency is a 1998 expansion to the popular 1997 real-time strategy computer game Total Annihilation. It contains extra units and maps, as well as a campaign of 25 missions and a long-awaited (although glitchy) official map editor.

The Core Contingency picks up where the original game finishes with the Arm ending, in which the Arm achieved final victory over the Core in its homeworld Core Prime, in their Galactic War of over 4,000 years. With the Core supposedly wiped out of existence, the Arm undergoes one-hundred years of reconstructing civilization.