| Cyclops | 107 | Giant | No | Blunt | 20% Pierce 25% Arrow 30% Nature -10% Body |
| Cumulus Proudblood | 125 | | Yes | | |
| Cultist | 9 | Humanoid | No | Pierce | |
| Cult Leader | 16 | Humanoid | No | Pierce | 70% Mind |
| Crystal Wyvern | 125 | Wyvern | No | Pierce | 25% Pierce 25% Cut 50% Arrow 50% Mind 100% Poison |
| Crystal Guardian | 135 | | No | | 40% Arrow 20% Soul 20% Mind 20% Body |
| Crystal Golem | 97 | Giant | No | Pierce | -10% Blunt 10% Mind 100% Poison 100% Disease |
| Crypt Watchman | 106 | | No | Cut | -5% Blunt 10% Cut 25% Mind |
| Crypt Robber | 30 | | No | | 30% Arrow 25% Nature |
| Crypt Protector Hobensnorl | 200 | | Yes | Blunt | -4% Blunt 5% Cut 25% Soul 10% Mind |
| Crypt Guardian | 104 | | No | | -10% Blunt 10% Cut 50% Soul |
| Crypt Crawler | 47 | | No | | 25% Pierce 25% Soul 100% Poison |
| Creeping Death | 103 | | No | | 50% Pierce 100% Soul |
| Cow | 4 | | No | Blunt | |
| Coral Snake | 32 | | No | Cut | 100% Poison |
| Construct of Ilmyrr | 80 | | Yes | | |
| Cold Giant | 115 | Giant | No | Cut | -10% Pierce 25% Cut 25% Soul |
| Cirrus Proudblood | 130 | | Yes | | 20% Arrow 50% Nature 50% Poison 50% Disease |
| Ciromorph | 68 | | No | | |
| Chugga Bam Bam | 69 | | No | | |