Breeding & Mutations Guide

Last Updated: June 2025

Unlock the full potential of your dinosaurs through advanced breeding! This comprehensive guide covers everything from basic breeding mechanics to complex mutation stacking strategies for creating the ultimate creatures.

Key Breeding Changes in ASA

Mutations are now separated from base stats, making tracking easier! Plus new creatures and structures make breeding more efficient than ever.

🦖 Breeding Helper Creatures & Structures

Essential Breeding Assistants:

🦅 Gigantoraptor

Mobile incubator and nursery

• Incubates 2 eggs regardless of temperature
• Holds/feeds 2 babies in saddle
• Provides bonus imprints
• Feathers give stat inheritance bias

🦎 Maeguana

Mobile feeding trough for babies

• Auto-feeds nearby babies
• Can carry up to 4 babies
• Works with unclaimed babies
• Level food stat for better range

🏗️ Egg Incubator

Genesis 2 structure

• Holds up to 10 eggs
• Maintains perfect temperature
• Requires electricity
• Shows incubation progress

🧬 Embryo Incubator

Bob's Tall Tales structure

• Extract embryos from pregnant dinos
• Store up to 10 embryos
• Requires Gene Scanner
• Pause/resume pregnancies

The Gigantoraptor's feathers can increase stat inheritance chances up to 6.25% when the raptor has 60+ base levels in that stat!

🥚 Breeding Basics - How It Works

Requirements for Breeding:

Two creatures of the same species
One male, one female
Both at least juvenile stage (not babies)
Enable mating on both (hold E → Enable Mating)
Keep them close together
Proper temperature for egg incubation

The Breeding Process:

🥚 Egg Layers

Enable mating on pair
Wait for mating bar
Female lays fertilized egg
Maintain proper temperature
Wait for egg to hatch

🍼 Live Birth

Enable mating on pair
Wait for gestation
Female becomes pregnant
Baby born after timer
Immediately needs food

Babies need constant feeding! Stock feeding troughs with appropriate food before hatching.

📊 Understanding Stat Inheritance

How Stats Are Inherited:

Each stat has a 55% chance to inherit the higher value between parents (70% with mutations in ASA).

Example:

Father Rex: 8,000 HP (40 points) | Mother Rex: 10,000 HP (50 points)

Baby has 55% chance for 10,000 HP, 45% chance for 8,000 HP

The Seven Stats:

Health - Most important for tanks
Stamina - Important for flyers
Oxygen - Usually ignored
Food - Usually ignored

Weight - Important for farmers
Melee - Critical for DPS
Speed - Cannot be leveled/mutated

Pro tip: Level = sum of all stat points + 1. A wild 150 has 149 points distributed randomly.

🧬 Mutations - The Key to Super Dinos

Understanding Mutations:

Chance per baby

7.31%

If both parents < 20/20

Stat bonus

+2 Levels

To one random stat

Max mutations

20/20

Per parent side

Mutation Facts:

Each mutation adds +2 levels to one stat
Always causes a color change (may not be visible)
Can stack infinitely with proper breeding
Mutations counter tracks total ancestry mutations
Once a parent hits 20/20, they can't produce NEW mutations

🎯 ASA Change:

Mutations are now tracked separately from base stats! You can see wild stats and mutation bonuses independently, making breeding much clearer.

🏆 Creating the Perfect Breeding Line

Step-by-Step Breeding Strategy:

Step 1: Tame High-Level Creatures

Tame multiple 135+ wild creatures (145+ preferred)
Check each for high stats in desired areas
Keep the best male and females for each stat
Don't worry about levels - focus on individual stats

Step 2: Create Perfect Pair

Breed to combine all best stats into one male and female
May take many generations
End goal: Identical male/female with all desired stats
These become your "base breeding pair"

Step 3: Mass Breed for Mutations

Keep 1 perfect male, breed with 20-50+ perfect females
Females must stay at 0/0 mutations
Check every baby for mutations in desired stats
Kill or store babies without useful mutations

Step 4: Stack Mutations

When you get a good mutation, that becomes new breeding male
Continue breeding with clean females
Each new mutation stacks on previous ones
Can continue infinitely with proper technique

Keep detailed records! Name creatures with their stats for easy tracking.

🔬 Advanced Mutation Techniques

The Clean Female Method:

This is the most efficient way to stack mutations infinitely:

Why It Works:

Females at 0/0 can always produce mutations
Male can be at any mutation count
Baby inherits father's mutations + potential new one
No limit to total mutations this way

Multiple Stat Lines:

For maximum efficiency, run separate lines:

Health Line: Stack only health mutations
Melee Line: Stack only melee mutations
Weight Line: For utility creatures
Final Breeding: Combine all lines into super creature

Level Cap Considerations:

Official Server Level Cap: 450

Creatures over level 450 are deleted on server restart! Plan your mutations carefully.

🔧 Advanced Breeding Techniques

Using Gigantoraptor Effectively:

Feather Stat Biasing

Pluck feather from Gigantoraptor (24hr cooldown)
Check feather for stat icon and percentage
Place in female's inventory before mating
Increases chance baby inherits that higher stat
Max 6.25% bias with 60+ base levels in stat

Incubation & Baby Care

Place egg in Gigantoraptor inventory
Attach to left/right saddle slot
No temperature requirements needed
Press R for imprint radial menu
Bonding hunts give extra imprints
Babies only fed while rider on saddle

Maeguana Baby Management:

Set up a nursery area with multiple Maeguanas:

Fill Maeguana inventories with appropriate food
Activate "Nursing" on each Maeguana
Babies eat from inventory first, then Maeguanas
Level Food stat to increase nursing range
Warning: Baby Maeguanas can't eat from adults!

Ensure Gigantoraptor is higher level than baby to prevent mesh issues!

👶 Raising Babies - Care Guide

Growth Stages:

Baby

0-10%

Hand feed only

Juvenile

10-50%

Can use trough

Adolescent

50-100%

Nearly grown

Adult

100%

Fully grown

Imprinting for Bonus Stats:

Care Timer: Baby wants care every 3-4 hours
Requests: Cuddle, walk, or specific kibble
100% Imprint: +20% stats, +30% damage/resistance when ridden
Tips: Use Gigantoraptor or Maeguana for easier raising

Food Requirements by Type:

Carnivores:

Raw meat (stacks to 40)
Cooked meat lasts longer
Raw fish for some species

Herbivores:

Berries (Mejoberries best)
Vegetables for some
Sweet veggie cake for snails

⚙️ Recommended Breeding Settings

For single-player or private servers, these settings make breeding manageable:

Time Reduction:

• Mating Interval: 0.1x (faster breeding)
• Egg Hatch Speed: 10-50x
• Baby Mature Speed: 10-50x
• Cuddle Interval: 0.1x (more imprints)

Quality of Life:

• Baby Food Consumption: 0.5x
• Allow Anyone Baby Imprint
• Disable Baby Wandering
• Gigantoraptor (mobile nursery)

📋 Breeding Quick Reference

Mutation Math:

• 7.31% chance per baby
• +2 levels per mutation
• 6 useful stats to mutate
• Color always changes

Best Practices:

• Keep females at 0/0
• Name with stat values
• Use breeding tracker
• Cryopod extras

Time Savers:

• Mass breed females
• Use Egg/Embryo Incubators
• Maeguana for auto-feeding
• Gigantoraptor for all-in-one care