| Clockwork Skies |
| Closing Doors by Rei England |
| Cloud 17 |
| Club Felis by Anna-Karin Linder, Ada Fredelius and Martin Brodén |
| Club Samsara |
| Clue, Impaired |
| Coffee with AlIce by Roderick Easton |
| Cold Blood |
| Cold Flash |
| Collision Imminent |
| Collision Imminent! by John Corrado Jr., Anne Cross, Jeff Diewald, Philip Goetz, David Lichtenstein, Michael McAfee, Don Ross, Alex Thorn and Mark "Justin du Coeur" Waks |
| Colonel Sebastian T. Rawhide's Circus of the Spectacular |
| Come Die With Me by Mel Harper, Graham Harper and Mo Holkar |
| Come Hel or Hiawatha by Nickey Barnard, Tym Norris, Mike Snowden and Janet Young |
| Come What May - A Moulin Rouge LARP by Micah Haddock |
| Commedia Dell'Arte by Michael McAfee |
| Common Sense |
| Communing in Darkness by Nick Huggins |
| Concealed College by Ohli Alsip, Lena Milojicic, Emry Sottile, , Susan Weiner and Dybbuk |
| Conclave |
| Conclave of the Gods by Kit Hill, Aaron Sunshine and Autumn Starfall |
| Concord Olympus by Kieran Martin |
| Concordance Station |
| Condition Echo Blueshift |
| Conflux |
| Congress of Vienna by Ben Philip and Kristen Patten |
| Conscientia |
| Consortium |
| Conspiracy |
| Conspiracy Cruise by Lee Patrick, Sally Hayes and Jennifer Hay |
| Conspiracy of Ravens |
| Contact |
| Contracts |
| Convergence by rowena knill, reuben strom, dave luxton and alastair kirkby |
| Cormorant Key by Esa Sclafani |
| Cosas Odiosas |
| Cosmic Cities |
| Cosmic Encounter: The Role Playing Game by Peter Durham and Janelle Durham |
| Council of Oramvand |
| Counterculture by Dybbuk |