| Abbreviation | Definition |
|---|---|
| CHARM | Clever Hidden As Risk Mints |
| CHESS | Chariot, Horse, Elephant, SoldierS |
| CIG | Computer Interface Game |
| CISG | Computer Information Systems Gaming |
| CJ | Counter Jungle |
| CJG | Contract Jail Gaming |
| CLG | Carry LethuL Gaming |
| CLG | Clapped League Gaming |
| CLG | Counter Logic Gaming |
| CLG | Counter Logic Gaming's |
| CM | Calm Mind |
| CM | Chaos Mage |
| CMC | Chuckle Muppet Collective |
| CMC | Converted Mana Cost |
| CMG | CheckMate Gaming |
| CMG | Comedy Music Gaming |
| CMG | Cool Math Games |
| CN | Content Notation |
| CNK | Crash Nitro Kart |
| CNS | Cornerian Naval Ship |