| Pwad | Author | Demos |
| Cabal | Sverre Kvernmo | 7 |
| Caesar | Francois Coppex | 4 |
| Calgon | Keith Hickman | 1 |
| Callisto | Vince Russett | 3 |
| Camelot | Rich Sham | 1 |
| Canyon | Tiim Willits | 2 |
| Canyon | Kenneth Forte | 1 |
| Cardiac | Lloyd Shelby | 1 |
| Care | Eric Varner | 1 |
| Carnage | Billy Turnbow | 1 |
| Carnage_ | ? | 1 |
| Carreg | Mike Weaver | 1 |
| Cas86 | ? | 1 |
| Casad1 | Jose Luis Gallardo | 1 |
| Castevil | Stanley Stasiak | 1 |
| Castel5 | Scott Harper | 1 |
| Castlem | Jon Mandigo | 1 |
| Castleof | Massimo Ciano | 11 |
| Caslotr | Scott Crank | 1 |
| Catacomb | Paolo Trinchieri | 1 |
| Catwalk | Christen Klie | 2 |
| Catwalks | Rich Dersheimer | 1 |
| Cavern | Eric Aamodt | 1 |
| Caverns | Doug Dziedzic | 1 |
| Cavlab11 | Dave Sawford | 1 |
| Cbcstg | Jonathan Washburn | 1 |
| Cchest | various | 39 |
| Cchest2 | various | 85 |
| Cct | Karthik Abhiram | 1 |
| Celeste | Mark Mackey | 1 |
| Cement | Andrew Murphy | 1 |
| Cerberus | Ariel C. Vera | 2 |
| Cga_sp | Vulgar | 3 |
| Chanesaw | Stephen Huff | 2 |
| Chaos | ? | 1 |
| Chaos3_ | Jerry Lehr | 4 |
| Chase_ | Eric C. Reuter | 1 |
| Cheese | Matthew G. Hooper | 1 |
| Chemical | Pablo Dictter | 1 |
| Chemplnt | Nicholas Spampata | 1 |
| Chequers | David Fleet | 1 |
| Chess | ? | 1 |
| Chief | Simon Varszeghy | 6 |
| Chode1 | Matt Berseth | 1 |
| Choices_ | Matt Reid | 1 |
| Choppas | Andrew Hulme | 1 |
| Chord1 | Malcolm Sailor | 4 |
| Chord2 | Malcolm Sailor | 1 |
| Chord3 | Malcolm Sailor | 1 |
| Chordg | Malcolm Sailor | 4 |
| Chord_ng | Malcolm Sailor | 5 |
| Chump | ? | 1 |
| Church | S. Andrew Swann | 3 |
| Cic | ? | 2 |
| Circus | Vance Blevins | 1 |
| Circus666 | Shitbag | 1 |
| Cistern | Roger Musson | 1 |
| Classic | Dave Johnson | 1 |
| Classic1 | Jan Van der Veken | 4 |
| Classic2 | Jan Van der Veken | 1 |
| Classic3 | Jan Van der Veken | 1 |
| Classic4 | Nick Baker | 1 |
| Classic5 | Anthony Soto | 3 |
| Classic6 | Anthony Soto
Jan Van der Veken |
1 |
| Classic7 | Anthony Soto
Jan Van der Veken |
12 |
| Classic11 | Jan Van der Veken | 2 |
| Classic_Episode | Van der Veken / Soto
Baker / Dunne |
107 |
| Classic_Episode 2 | Jan Van der Veken | 2 |
| Claus_01 | Claus Nielsen | 1 |
| Claus_02 | Claus Nielsen | 1 |
| Claus_03 | Claus Nielsen | 1 |
| Cldf1 | Daniel Weed | 1 |
| Cleim10 | Rand and Steven Phares | 1 |
| Cleimos2 | Rand Phares
Steven Phares |
28 |
| Cliff | ? | 1 |
| Cnfusion | Reza S. Dowlatshahi | 1 |
| Co | David , Doug, and
Derek Merrill |
2 |
| Coak | Francois Coppex | 1 |
| Cod2 | The Fishcake Federation | 1 |
| Coecits | Fredrik Johansson | 3 |
| Cofd | Tim Tasto | 1 |
| Collect | ? | 2 |
| Collect2 | ? | 1 |
| Collect3 | ? | 1 |
| Coloseum | Dean Ashley Svendsen | 3 |
| Combat | Karl R. Peters | 1 |
| Combat2 | Karl R. Peters | 1 |
| Combine | Christen Klie | 4 |
| Comcon | Patrick Hipps | 1 |
| Comp | ? | 1 |
| Compcore | Jeff Velten | 1 |
| Comrades | Larry Wangemann | 1 |
| Conquest | Jim Hendrickson | 1 |
| Convertm | John Hitt | 1 |
| Cooldoom | Adam Grommes | 1 |
| Coopers | Stephen Wassell | 1 |
| Core | Barry Ferg | 1 |
| Corn | Jason Frierdich | 1 |
| Cor_hel4 | Jens Nielsen | 1 |
| Corridor | Mike Toliver | 3 |
| Cortyard | Maurice Ormon | 1 |
| Cortyr_b | Michael Kelsey | 1 |
| Courtesc | Lars Boye | 3 |
| Coyg | Mark and Nik | 1 |
| Cphobos2 | David Shrock | 1 |
| Cpunch | Karthik Abhiram | 3 |
| Cradle | Patrik Höglund | 2 |
| Crash | GoldenHog | 1 |
| Crater | Jin H. Kim | 1 |
| Cresent | Doug Ryerson | 2 |
| Cresta | Sam Ketner | 1 |
| Crestfal | Martin Friberg | 3 |
| Crimkeep | John Boyle | 1 |
| Cringe6 | Mark Klem and Eric Sargent | 1 |
| Crmsn37 | J. S. Graham | 2 |
| Crosfr01 | Terry Henning | 1 |
| Cross | Terry Henning | 1 |
| Crosst | Terry Henning | 1 |
| Cruhell | Michael Lundy | 1 |
| Crusades | Richard Wiles | 51 |
| Crusher | Ethan Brodsky | 1 |
| Cryhavoc | Joseph Wheatley | 1 |
| Crypt | Bosco | 1 |
| Crypt | Braindead | 1 |
| Ctrl57_1 | Scott McNutt | 1 |
| Cuewad | David Koppenhofer | 1 |
| Cuit | David Koppenhofer | 1 |
| Cwwad | ? | 1 |
| Cyber3 | Pedro A. Gomez Blanco | 1 |
| Cyberdreams | Gonzalo Perez de la Ossa
Albert Valls |
72 |
| Cyberpit | Steven van Loef | 1 |
| Cybokill | Brian Barrett | 1 |
| Cybrdeth | Scott Smith | 1 |
| Cyc-a | Cycloid | 1 |
| CygnusIV | John Bye | 16 |
| Cyke | Joe Popp | 1 |
| Cyril2 | Cyril Forget | 1 |