Hostile Mystery Eggs are, like the normal Mystery Eggs, a way to obtain spawn eggs. Simply hold the egg in your hand, right click and a random "Hostile" spawn egg will appear. Hostile meaning mobs that attack you, like Zombies, Skeletons, Creepers etc.
To obtain a Hostile Mystery Egg, you will need to craft it. It will need the normal Mystery Eggs as well as some vault diamonds, vault essence and vault meat, all of these are obtained within the Vaults.
The main usage of these spawn eggs are in the mods Cagerium and Ispawners. In these mods spawn eggs can be used to obtain the spawn egg's mob drops. For example, having a skeleton egg with either of these mods will let you get infinite arrows and bones.
The avalible spawn eggs and the chance of getting them are:
| Icon | Name | Chance |
| (Icon will be needed for the eggs) | Spider Spawn Egg | 10.70% |
| Cave Spider Spawn Egg | 10.70% | |
| Skeleton Spawn Egg | 10.70% | |
| Stray Spawn Egg | 10.70% | |
| Zombie Spawn Egg | 10.70% | |
| Drowned Spawn Egg | 7.13% | |
| Husk Spawn Egg | 7.13% | |
| Enderman Spawn Egg | 5.35% | |
| Creeper Spawn Egg | 4.46% | |
| Slime Spawn Egg | 3.57% | |
| Zombified Piglin Spawn Egg | 2.14% | |
| Blaze Spawn Egg | 1.78% | |
| Piglin Spawn Egg | 1.78% | |
| Piglin Brute Spawn Egg | 1.78% | |
| Pillager Spawn Egg | 1.78% | |
| Magma Cube Spawn Egg | 1.43% | |
| Witch Spawn Egg | 0.89% | |
| Ghast Spawn Egg | 0.89% | |
| Guardian Spawn Egg | 0.89% | |
| Phantom Spawn Egg | 0.71% | |
| Shulker Spawn Egg | 0.71% | |
| Vindicator Spawn Egg | 0.71% | |
| Wither Skeleton Spawn Egg | 0.71% | |
| Evoker Spawn Egg | 0.53% | |
| Hoglin Spawn Egg | 0.36% | |
| Zoglin Spawn Egg | 0.36% | |
| Ravager Spawn Egg | 0.36% | |
| Elder Guardian Spawn Egg | 0.36% | |
| Iron Golem Spawn Egg | 0.36% | |
| Wither Spawn Egg | 0.36% |