Genetics Basics and Inbreeding

Written by Kaskrim • Scribed by AI Elara • Project Gorgon Genetics Research

Project Gorgon's breeding system uses real Mendelian genetics. Understanding this system is the foundation for everything else — clarification, fold-ins, stat optimization, and visual trait breeding all depend on these rules. It also explains one of the most counterintuitive facts new breeders encounter: in Project Gorgon, inbreeding is not just acceptable — it is the recommended method.

Start with the basics. Everything else follows from them.

This article covers three connected topics:

1. How genes work (Mendelian fundamentals)
2. Why first-generation offspring have bad stats — a direct consequence of the above
3. Why inbreeding is OK in PG — and why it is the recommended fix

A quick reference glossary is included at the end of this article (full glossary available in the Genetics Master Glossary article).

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Notation Guide

This article uses the standard visual symbols throughout.

In-Game Visual (what you see in the genetics window)

Symbol	Name	Meaning
⬤	Dominant	Both alleles are dominant
〇	Recessive	Both alleles are recessive
⦿	Mixed	One dominant allele, one recessive allele

Text Export Format

The game can also export a specimen's genome as a plain text file. The text export uses a different notation from the genetics window:

[Overview]
Format=v1.0
Character=PlayerName
Entity=Baby Fae Bee 2483
Genome=BeeWasp

[Genes]
01=  RRRR RxRR RRRx RRRD ...
02=  ...

Text export uses: D = ⬤ (dominant), R = 〇 (recessive), x = ⦿ (mixed), ? = unknown

These are two distinct formats — the genetics window and the text export use different symbols for the same information.

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Part 1: How Genes Work

Every Gene Has Two Parts (Alleles)

Each gene position in the genome carries TWO copies of the gene, called alleles. You can think of each gene as having a LEFT side and a RIGHT side. One allele is inherited from the mother, and one from the father.

Each allele can be either DOMINANT or RECESSIVE. The combination of those two alleles determines the gene's state, which is what you see as a single symbol:

• ⬤ (dominant) — both alleles are dominant. Text export: D.
• 〇 (recessive) — both alleles are recessive. Text export: R.
• ⦿ (mixed) — one dominant, one recessive. Text export: x.

How Traits Are Masked

This two-part structure is what makes genetics interesting — and tricky. A mixed gene (⦿) LOOKS like a dominant gene for most decode purposes, but it CARRIES a hidden recessive allele that can be passed to offspring.

For arthropod stats specifically, only recessive (〇) expresses the stat bonus. This means:

• ⬤ = stat is OFF. Both alleles are dominant. No bonus.
• ⦿ = stat is OFF. One dominant allele MASKS the recessive one. The recessive allele is there, hidden, but the dominant allele prevents the stat from expressing. The trait is "carried" but not visible.
• 〇 = stat is ON. Both alleles are recessive. Nothing to mask it.

This is why a specimen can CARRY a good gene without SHOWING it. A ⦿ gene holds the recessive allele silently — it can be passed to offspring, but it does not activate the stat bonus in the carrier.

Note: This example specifically covers arthropod stat expression. Horses have some differences. See the Horse Genome Structure article for how horses differ.

How Inheritance Works

When two specimens breed, each parent donates ONE of their two alleles to the offspring (chosen randomly, 50/50). The offspring then has two alleles: one from mom, one from dad. Each gene rolls independently — the result at one gene position has no effect on any other position.

This is why it is called "Mendelian" genetics — Gregor Mendel discovered these rules in the 1860s using pea plants. Project Gorgon implements them faithfully.

The Six Possible Crosses

Here is every possible combination of parents and what their offspring will be. These percentages apply to EACH GENE INDEPENDENTLY.

Cross 1: ⬤ × ⬤ (dominant × dominant)

• Parent 1 donates: dominant allele (100% of the time)
• Parent 2 donates: dominant allele (100% of the time)
• Offspring: ⬤

Both parents can only give dominant alleles. Every offspring is ⬤. This gene is LOCKED dominant. It will never change without introducing new genetics from outside.

Cross 2: ⬤ × 〇 (dominant × recessive)

• Parent 1 donates: dominant allele (100% of the time)
• Parent 2 donates: recessive allele (100% of the time)
• Offspring: ⦿ (mixed)

One parent always gives dominant, the other always gives recessive. Every single offspring will be ⦿ at this position. No exceptions. The stat is NOT expressed in any offspring (⦿ does not trigger stat bonuses). But every offspring CARRIES the recessive allele.

Cross 3: ⬤ × ⦿ (dominant × mixed)

• Parent 1 donates: dominant allele (100% of the time)
• Parent 2 donates: dominant allele (50%) or recessive allele (50%)
• Offspring: 50% ⬤, 50% ⦿

The dominant parent always gives dominant. The mixed parent flips a coin. Half the offspring will be ⬤ (locked dominant), half will be ⦿ (still carrying the recessive). No offspring will be 〇. This cross can NEVER produce a recessive.

Cross 4: ⦿ × ⦿ (mixed × mixed)

• Parent 1 donates: dominant (50%) or recessive (50%)
• Parent 2 donates: dominant (50%) or recessive (50%)
• Offspring: 25% ⬤, 50% ⦿, 25% 〇

Both parents flip a coin. Four equally likely outcomes:

• dominant from mom + dominant from dad = ⬤ (25%)
• dominant from mom + recessive from dad = ⦿ (25%)
• recessive from mom + dominant from dad = ⦿ (25%)
• recessive from mom + recessive from dad = 〇 (25%)

This is the ONLY cross involving a dominant allele that can produce 〇. It is also unpredictable — you get a random mix every time. This cross is used in the SIBLING CROSS method to lock a target gene at 〇 with a 25% chance per offspring.

Cross 5: ⦿ × 〇 (mixed × recessive)

• Parent 1 donates: dominant (50%) or recessive (50%)
• Parent 2 donates: recessive allele (100% of the time)
• Offspring: 50% ⦿, 50% 〇

The recessive parent always gives recessive. The mixed parent flips a coin. Half the offspring will be ⦿ (still carrying the dominant allele), half will be 〇 (gene locked). This is the key cross during back-crossing: the clarified parent is 〇, the offspring being cleaned up is ⦿. Each generation, there is a 50% chance the gene flips to 〇 (locked) or stays ⦿ (still needs work).

Cross 6: 〇 × 〇 (recessive × recessive)

• Parent 1 donates: recessive allele (100% of the time)
• Parent 2 donates: recessive allele (100% of the time)
• Offspring: 〇

Both parents can only give recessive alleles. Every offspring is 〇. This gene is LOCKED recessive. The stat bonus will express in every offspring, every time, forever. This is the goal for stat genes in arthropods.

Summary Table

Cross	⬤%	⦿%	〇%	Can produce 〇?
⬤ × ⬤	100	0	0	No
⬤ × 〇	0	100	0	No
⬤ × ⦿	50	50	0	No
⦿ × ⦿	25	50	25	Yes (25%)
⦿ × 〇	0	50	50	Yes (50%)
〇 × 〇	0	0	100	Yes (100%)

Key Takeaways

• Each gene has 2 alleles. Each parent donates 1 randomly.
• Each gene rolls independently — results at one gene do not affect others.
• A dominant allele MASKS a recessive allele in ⦿ genes. The recessive is carried but does not express.
• Only 3 crosses can produce 〇: ⦿ × ⦿ (25%), ⦿ × 〇 (50%), 〇 × 〇 (100%).
• ⬤ × 〇 always produces ⦿ offspring. This is why first-gen wild crosses have bad stats.
• Clarification means breeding until every gene is ⬤ or 〇 — eliminating all mixed genes so that breeding results are 100% predictable.

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What "Mixed" Really Means

Mixed genes (⦿) are the core challenge of breeding. Understanding them is understanding the whole system.

A ⦿ gene has one dominant allele and one recessive allele. For decode purposes it behaves like dominant. The specimen decode looks the same as if it were ⬤ at that position.

But genetically, ⦿ is completely different from ⬤. A ⬤ parent can only pass dominant alleles. A ⦿ parent passes dominant half the time and recessive half the time. This invisible difference is what makes breeding possible — and what makes it take so long.

The Trap for New Breeders

Two specimens can have identical visible traits but completely different genetic potential. One might be ⬤ at every stat gene (no room for improvement), while the other is ⦿ at several (each one a candidate for breeding to 〇). You cannot tell them apart without the Genetics skill or careful record-keeping.

Stats tell you what a specimen IS.

Genetics tells you what a specimen CAN BECOME.

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What Is Clarification?

A clarified specimen has NO mixed genes anywhere in its genome. Every single position is either ⬤ or 〇.

Why does this matter? ⦿ genes are coin flips. Every ⦿ position in a parent means the offspring at that position is unpredictable. With 238 gene positions (for arthropods — horses have significantly more), even a few mixed genes create significant variation between siblings.

A clarified specimen crossed with another clarified specimen of the same line produces IDENTICAL offspring every time (at the clarified positions). No randomness. No surprises. You know exactly what the offspring will be before they are born.

Clarification is the foundation of all serious breeding. You cannot engineer specific stat combinations, fold in new genes precisely, or plan breeding lines without it. Everything else in advanced breeding assumes your base line is clarified.

How to Clarify

1. Start with a wild-caught pair. Breed them together.
2. First generation (F1) will have many ⦿ genes. This is normal. Ignore the stats.
3. Cross F1 siblings. Each ⦿ gene has a 25% chance of resolving to ⬤ or 〇 per generation (Cross 4: ⦿ × ⦿).
4. Select offspring with fewer ⦿ genes (if you can see the genome) or more consistent stats (if breeding blind).
5. Repeat. Each generation, more mixed genes resolve. Eventually every position is locked.

This takes many generations. There is no shortcut. But each generation is measurable progress toward a specimen that breeds true.

Note: Clarification is a deep topic. This section covers the basics. For a full treatment of both blind and sighted clarification methods, see the dedicated The Complete Guide to Genetics Clarification.

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Part 2: Why First-Generation Offspring Have Bad Stats

When you tame a wild specimen and breed it with your established line, the first generation of offspring will almost always have worse stats than either parent. This is not bad luck — it is a predictable consequence of the Mendelian rules above.

What Happens When You Cross Wild × Clarified

A clarified line specimen has every gene locked at either ⬤ or 〇 — no ⦿ genes. The stat genes are at 〇, which is why the specimen has good stats.

A wild specimen has its own set of ⬤ and 〇 genes, but they are in DIFFERENT positions than your clarified line. Some of the wild specimen's genes will be ⬤ where your line has 〇, and vice versa.

When you cross them (this is Cross 2: ⬤ × 〇 = 100% ⦿):

• Where both parents are 〇: offspring is 〇. Stat expresses. Good.
• Where both parents are ⬤: offspring is ⬤. No stat. Neutral.
• Where one parent is 〇 and the other is ⬤: offspring is ⦿ (mixed). The stat does NOT express because ⦿ is not recessive.

That last case is the problem. Every gene where the wild specimen differs from your line becomes ⦿ in the offspring — and ⦿ genes do not express their stat bonus. The first generation inherits a genome full of mixed genes, and each ⦿ is a stat bonus that has been temporarily turned OFF.

The Result

The offspring has fewer active stat genes than either parent. Stats drop. The specimen looks worse on paper. This is EXPECTED and TEMPORARY.

Why It Gets Better

Those ⦿ genes can be bred back to recessive through subsequent generations. When you back-cross the offspring to the clarified parent (Cross 5: ⦿ × 〇), each ⦿ gene has a 50% chance per generation to return to 〇. Over several generations, you converge back toward the clarified line's genome — but now carrying the new gene you wanted from the wild specimen.

The stat dip in generation 1 is the cost of introducing new genetic material. It always recovers if you follow through with the breeding program.

Key Takeaway

If your first-generation cross has bad stats, do not panic and do not release it. The stats WILL recover as you breed the ⦿ genes back to 〇. This is normal. This is how genetics works.

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Part 3: Why Inbreeding Is OK in Project Gorgon

The recovery method described above — back-crossing offspring to the clarified parent — IS inbreeding. And here is why that is not a problem.

Now that you understand how genes work, you can understand why one of the most counterintuitive things about PG breeding is actually true: inbreeding is not just safe — it is the recommended method.

In real life, inbreeding is avoided because it causes "inbreeding depression" — a buildup of harmful recessive genes that leads to genetic defects, reduced fertility, weakened immune systems, and other health problems. This happens because most organisms carry hidden harmful recessives that only cause problems when both parents pass on the same one.

Project Gorgon Does Not Model This

• There are NO harmful recessive genes.
• There is NO inbreeding depression.
• There are NO genetic defects from breeding related specimens.
• There is NO reduced fertility from inbreeding.
• There is NO penalty of any kind for breeding parent to child, sibling to sibling, or any other combination of related specimens.

Every gene in PG is independent. A gene is ⬤, 〇, or ⦿. That is all it does. There is no hidden "harmful" flag. A 〇 gene does not become more dangerous when doubled up — it simply expresses its stat bonus (for arthropods) or its visual trait.

Why Inbreeding Is Actually Recommended

Back-crossing (breeding offspring back to a parent) is the STANDARD and MOST PRACTICAL method for:

• Clarifying genes (eliminating ⦿ positions)
• Folding in new genes from wild specimens
• Converging offspring toward a desired genome

Gene clarification relies heavily on back-crossing to the clarified parent. This IS inbreeding. It is the fastest and most efficient way to breed in PG.

The Key Difference from Real Life

Real life: Genes can carry harmful effects that only appear when doubled up. Inbreeding increases the chance of doubling up harmful recessives. Avoiding inbreeding keeps the population genetically diverse, which hides these harmful recessives behind healthy dominant copies.

Project Gorgon: No gene carries a harmful effect. Doubling up recessives (〇) is the GOAL — it activates stat bonuses for arthropods. There is nothing to hide and nothing to avoid. Inbreeding is not just safe — it is optimal.

Do not hesitate to breed related specimens. The game was designed this way.

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Probability and Patience

Here is the math that governs your breeding timeline.

For a Single ⦿ Gene to Resolve to 〇

• ⦿ × ⦿ (sibling cross): 25% chance per offspring
• ⦿ × 〇 (back-cross): 50% chance per offspring

For Multiple ⦿ Genes to All Resolve in One Offspring

Probabilities multiply. If you have 5 ⦿ genes and you are back-crossing (50% each):

• Chance all 5 resolve to 〇 in one offspring: 0.5⁵ = 3.125%
• You would need roughly 32 offspring to expect one success

This is why breeders work on one gene at a time rather than trying to fix everything at once. Lock one gene, then move to the next. Each locked 〇 gene is permanent progress that never regresses.

Gestation in PG is 3 days (2 with incubator for bees, blankets for horses). At one breeding pair producing one offspring every 2–3 days, clarifying a full genome takes months to years of real time. This is the true bottleneck of breeding — not knowledge, but patience.

The breeders who have achieved perfect 100-stat specimens (Deldaron and Azizah, so far) invested years of daily breeding to get there. Understanding genetics does not eliminate the time, but it eliminates wasted generations.

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Practical Breeding Decisions

Before You Can See the Genome (Blind Breeding)

• Compare sibling stats. If siblings have very different stats, the parents have many ⦿ genes. If siblings are consistent, the parents are mostly clarified.
• Higher stats are not always better for breeding. A lower-stat offspring might have more genes locked at 〇 (which will breed true), while a higher-stat sibling got lucky with ⦿ genes that will not reliably pass on.
• Consistency across multiple offspring is more valuable than one high-stat outlier.

After You Unlock Genetics

• Prioritize removing ⦿ genes over chasing specific stats. A clarified specimen with moderate stats is a better breeding foundation than a ⦿-heavy specimen with high stats.
• Count the ⦿ genes in potential breeding pairs. Fewer ⦿ = faster clarification.
• Identify which ⦿ genes are at stat positions. Those are the ones worth targeting first.

General Principles

• Keep your original wild-caught pair alive. You may need to start over or back-cross to them.
• Inbreeding has zero penalty in PG. Back-crossing is the standard and recommended method. See Part 3.
• Caging neuters permanently. Never cage a specimen you might want to breed later. Once caged for trading, it can never breed again.
• Registered breeders cannot be caged. The only way to remove them from your stable slot is to release (permanently delete) them.

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Quick Reference Glossary

The terms below are defined here for quick reference. For the full genetics glossary covering all terms used across the article series, see the Genetics Master Glossary.

Term	Definition
Allele	One copy of a gene. Every gene has two alleles.
Dominant	An allele type. In arthropods, dominant alleles suppress stat expression. Text export: D.
Recessive	An allele type. In arthropods, stat bonuses only activate when both alleles are recessive. Text export: R.
⬤	Both alleles dominant. No stat bonus. Breeds true.
〇	Both alleles recessive. Stat bonus active (arthropods). Breeds true. This is the goal for stat genes.
⦿	Mixed. One dominant, one recessive. No stat bonus. Does NOT breed true. Text export: x.
Clarified	A specimen with no ⦿ genes. Every position is ⬤ or 〇. Breeds 100% predictably.
Back-cross	Breeding offspring back to a parent. ⦿ × 〇 gives 50% chance of 〇 per gene. The workhorse of clarification.
Fold-in	Introducing a specific gene from an outside specimen into a clarified line.
Genome	The complete set of all genes in a specimen. Arthropods: 238 positions, 10 chromosomes. Horses: 1,576 positions, 48 chromosomes.
Chromosome	A group of genes. Arthropods have 10 (CR 1 through CR 10).
Floor	The minimum stat value all specimens of a species share, determined by genes locked across all wild archetypes.
Stat gene	A gene position that adds points to one of the 7 stats when expressed (〇 in arthropods).
Cosmetic gene	A gene position that affects appearance but not stats.
Locked gene	A gene that is the same state across all wild specimens of a species. Cannot be changed except through mutation.

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Research and knowledge by Kaskrim. Compiled by AI Elara. Based on 4.5+ years of genetics research.

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