Sometimes when a player loots living chests they will find Mystery Eggs. These are essentially a type of a mystery box but for spawn eggs. When holding a Mystery egg and right clicking, a random passive spawn egg will drop.
Mystery eggs can also be crafted to a Hostile Mystery Egg, which function the same but will drop hostile eggs instead.
The drop chances and the available eggs are:
| Icon | Name | Chance |
| (Icon will be needed for the eggs) | Pig Spawn Egg | 17.12% |
| Sheep Spawn Egg | 13.69% | |
| Chicken Spawn Egg | 10.95% | |
| Cow Spawn Egg | 10.95% | |
| Cod Spawn Egg | 4.10% | |
| Mooshroom Spawn Egg | 2.73% | |
| Rabbit Spawn Egg | 2.73% | |
| Salmon Spawn Egg | 2.73% | |
| Squid Spawn Egg | 2.73% | |
| Bee Spawn Egg | 2.05% | |
| Cat Spawn Egg | 1.71% | |
| Goat Spawn Egg | 1.71% | |
| Tropical Fish Spawn Egg | 1.71% | |
| Dolphin Spawn Egg | 1.71% | |
| Polar Bear Spawn Egg | 1.36% | |
| Bat Spawn Egg | 1.36% | |
| Parrot Spawn Egg | 1.36% | |
| Pufferfish Spawn Egg | 1.36% | |
| Donkey Spawn Egg | 1.36% | |
| Axolotl Spawn Egg | 0.68% | |
| Glow Squid Spawn Egg | 0.68% | |
| Panda Spawn Egg | 0.68% | |
| Strider Spawn Egg? | 0.68% | |
| Turtle Spawn Egg | 0.68% |