The Calamity Mod currently adds ten pets and one light pet into the game.
Pets
| Pets | |||||
|---|---|---|---|---|---|
| Buff | Pet | Item | Source | ||
 |
 Akato |
 Forgotten Dragon Egg |
Dropped by  Jungle Dragon, Yharon.
| ||
 |
 Bear |
 Bear's Eye |
Sold by  Archmage.
| ||
 |
 Brimling (Pet) |
 Charred Relic |
 Treasure Bag (Brimstone Elemental) in Revengeance Mode.
| ||
 |
 Chibii Devourer |
 Cosmic Plushie |
 Treasure Bag (The Devourer of Gods) in Death Mode with a Hardcore character.
| ||
 |
 Danny Devito |
 Trash Can (pet) |
Dropped by  Trashers.
| ||
| Fox Pet (Buff) |  Fox Pet |
 Fox Drive |
 Treasure Bag (Jungle Dragon, Yharon) in Revengeance Mode.
| ||
 |
 Kendra |
 Romajeda Orchid |
Sold by  Dryad.
| ||
 |
 Levi |
 Levi |
Dropped by Supreme Calamitas Phase 2Supreme Calamitas in Death Mode. | ||
 |
 Mini Perforator |
 Bloody Vein |
Dropped by  The Perforators.
| ||
 |
 Third Sage |
 Hermit's Box of One Hundred Medicines |
Dropped by  Wall of Flesh.
| ||
Light Pets
| Light Pets | |||||
|---|---|---|---|---|---|
| Buff | Pet | Item | Source | Notes | |
| Young Siren (buff) | Young SirenYoung Siren |  Strange Orb |
The Shadow Chests in the Abyss. | Flops around on land. Swims and provides more light while submerged in a liquid. | |
Notes
- Light pets affect the light levels in the Abyss.
- Crimson Heart, Light Orb or Magic Lantern pet: +1 to light level
- Fairy or Flickerwick pet: +2 to light level
- Wisp, Suspicious Looking Eye or Young Siren pet: +3 to light level
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