What spawns in the Cold Ocean biome (Overworld)? 16 mobs with spawn weights, chances and group sizes for Java & Bedrock. Including Bat, Creeper and Skeleton.
| Mob | Weight | Chance | Group size |
|---|---|---|---|
 Creeper |
100 | 19.2% | 4 |
 Skeleton |
100 | 19.2% | 4 |
 Slime |
100 | 19.2% | 4 |
 Spider |
100 | 19.2% | 4 |
 Zombie |
95 | 18.3% | 4 |
 Enderman |
10 | 1.9% | 1–4 |
 Drowned |
5 | 1% | 1 |
 Witch |
5 | 1% | 1 |
 Zombie Villager |
5 | 1% | 1 |
| Total weight 520 · 100% | |||
| Mob | Weight | Chance | Group size |
|---|---|---|---|
 Bat |
10 | 100% | 8 |
| Total weight 10 · 100% | |||
| Mob | Weight | Chance | Group size |
|---|---|---|---|
 Nautilus |
3 | 50% | 1–3 |
 Squid |
3 | 50% | 1–4 |
| Total weight 6 · 100% | |||
| Mob | Weight | Chance | Group size |
|---|---|---|---|
 Cod |
15 | 50% | 3–6 |
 Salmon |
15 | 50% | 1–5 |
| Total weight 30 · 100% | |||
| Mob | Weight | Chance | Group size |
|---|---|---|---|
 Glow Squid |
10 | 100% | 4–6 |
| Total weight 10 · 100% | |||
| Mob | Weight | Chance | Group size |
|---|---|---|---|
| Creeper |
100 | 16.8% | 1 |
| Drowned |
100 | 16.8% | 2–4 |
| Slime |
100 | 16.8% | 1 |
| Spider |
100 | 16.8% | 1 |
| Zombie |
95 | 16% | 2–4 |
| Skeleton |
80 | 13.4% | 1–2 |
| Enderman |
10 | 1.7% | 1–2 |
| Witch |
5 | 0.8% | 1 |
| Zombie Villager |
5 | 0.8% | 2–4 |
| Total weight 595 · 100% | |||
| Mob | Weight | Chance | Group size |
|---|---|---|---|
| Glow Squid |
10 | 30.3% | 2–4 |
| Nautilus |
8 | 24.2% | 1–3 |
| Squid |
8 | 24.2% | 2–4 |
 Dolphin |
7 | 21.2% | 3–5 |
| Total weight 33 · 100% | |||
| Mob | Weight | Chance | Group size |
|---|---|---|---|
| Bat |
10 | 100% | 2 |
| Total weight 10 · 100% | |||
| Mob | Weight | Chance | Group size |
|---|---|---|---|
| Cod |
75 | 74.3% | 4–7 |
| Salmon |
26 | 25.7% | 3–5 |
| Total weight 101 · 100% | |||
Weight = spawn weight of the mob in its category · Chance = weight ÷ total weight of the category · Group size = how many spawn together.
In Java Edition 16 mob types can spawn in Cold Ocean — hostile mobs: Creeper, Skeleton, Slime, Spider, Zombie and Enderman and 3 more; ambient mobs: Bat; water mobs: Nautilus and Squid; fish: Cod and Salmon; underground water mobs: Glow Squid.
Creeper, Skeleton, Slime and Spider share the highest spawn weight among the hostile mobs: 100 of 520 (19.2% each) in Java Edition.
Yes. Java Edition lists 15 spawn entries for Cold Ocean, Bedrock Edition 16. For example, Creeper has a weight of 100/520 (19.2%) in Java and 100/595 (16.8%) in Bedrock. Use the edition switch above the tables to compare.
Each spawn attempt first picks a category (for example hostile or passive mobs), then one mob of that category at random, weighted by its spawn weight. A mob's chance is its weight divided by the total weight of its category in the biome — so the shares in each table add up to 100%.
