TC or tC could refer to:
Alliances
- The Confederacy, a now defunct brown team alliance formed out of the ashes of the Northern Treaty Organization/Elitist Global Superstructure incident. On April 24, 2008 they merged with the New Order of Independence to form Carpe Diem.
- Trilateral Commission
Blocs
- The Continuum, a large bloc of 12 alliances including 6 of the 12 sanctioned alliance and several former members of the now defunct World Unity Treaty.
- Terra-Cotta Pact, a brown sphere MDP bloc
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