Everything is Crab Evolution Traits: S-Tier to F-Tier Ranked With Data

Table of Contents

1. How This Tier List Was Built
2. S-Tier: Build Defining Traits
3. A-Tier: Strong Pickups in Any Build
4. B-Tier: Situationally Good
5. C-Tier: Filler You Take When Nothing Else Shows
6. F-Tier: Traps That Waste Your Evolution Slot
7. Tier List Quick Reference Table
8. Affinity System Explained
9. Everything is Crab Trait Rankings: What Actually Wins Runs

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How This Tier List Was Built

The evolution screen where you choose your next trait. Knowing which traits are worth your slot is the difference between winning and dying at the mid-boss.

I spent about 40 hours testing trait interactions across all 10 Pressure levels for this list. Every entry below is based on actual in-game performance, not just tooltip reading. I cross-verified the scaling numbers against Neoseeker’s data tables and the official wiki.

Tier criteria:

Tier	Definition	How Many Runs Tested
S	Build-defining. Worth building your entire run around.	15+
A	Strong in most builds. Take when you see them.	10+
B	Good in the right build. Situational but valuable.	8+
C	Filler. You take them because you need the stat, not because you want the trait.	5+
F	Traps. Actively worse than not picking anything.	5+ (died to confirm)

The scaling tables below are from the game files. I confirmed random samples against in-game tooltips.

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S-Tier: Build Defining Traits

These five traits define the Everything is Crab meta. If you see any of these in your first three picks, your build has a direction.

1. Cheek Pouch - The Single Best Early Pick

Aspect	Details
Rarity	Rare
Affinities	Gregarious, Trickster
Max Level	3
Effect	Stores nearby food. Stored food is consumed passively at the same rate.

I pick Cheek Pouch every time it appears in the first three evolutions. Every single time. After 40+ hours I have never regretted it.

Why it is S-Tier: Cheek Pouch solves the most common early death — dying while eating. Instead of standing still in a dangerous area to consume food, you pick it up and keep moving while your cheeks process it. On Pressure 8+, where health food heals less, this passive eating means you never have to choose between healing and positioning.

It has no meaningful downside. The only reason it is not picked 100% of the time is that sometimes you need an attack piece more urgently.

2. Mass - The Physical Build Enabler

Level	Common	Rare	Epic	Legendary	Boss
Lv1 Physical	0.5	0.6	0.7	0.9	1.2
Lv2 Physical	1	1.2	1.5	1.8	2.4
Lv3 Physical	1.5	1.8	2.2	2.7	3.6

Affinities: Imposing

Mass is the backbone of every physical build. It gives Physical damage, size, and HP all in one slot. For Body Slam Tank builds, Mass is the second-best early pick after Cheek Pouch because it feeds both your damage and your survivability at the same time.

The only downside: Mass increases your body size, which makes you an easier target in tight spaces. If you take Mass early without a movement piece, you will get stuck in corners. Take Legs or Sprint within two levels of picking Mass.

3. Trunk - Hybrid Damage With Free Food Utility

Stat	Value
Damage	1-1.4x Physical or Ability (uses the lower stat)
Cooldown	1.5s
Feeding Distance	+0.66
Rarity	Rare
Affinities	Imposing, Trickster

Trunk’s damage uses your lower stat between Physical and Ability. This is both its strength and its weakness — it forces you to keep both stats balanced, which means you cannot ignore one damage type entirely. But a balanced Trunk build hits harder than a specialized build against general enemies because you never have a “dead” stat.

The feeding distance bonus (+0.66) is more useful than it looks on paper. It lets you eat from slightly further away, which means less time repositioning to reach food.

4. Body Slam - HP-Scaling Boss Killer

Stat	Value
Damage	1.2-1.4x Physical + 17% of Max HP
Cooldown	1.25s
Type	Close-range Physical attack
Rarity	Rare
Affinities	Imposing, Predator

Body Slam’s 17% Max HP scaling is the reason tank builds work. With 100 Max HP, Body Slam adds 17 flat damage before Physical multipliers. With 200 Max HP — achievable in most runs that hit Pressure 6+ — that is 34 bonus damage per slam.

The cooldown of 1.25s is fast enough that Body Slam replaces auto-attacks entirely in the late game. You press one button per swing and every swing hits like a truck.

The catch: Body Slam without HP behind it is a waste. I tested taking Body Slam at level 1 with base HP. It dealt about 30 damage. Not worth the slot. Wait until you have at least two HP pieces before committing.

5. Spines - The Enemy Kills Itself

Level	Damage Returned
Lv1	+50%
Lv2	+90%
Lv3	+130%
Lv4	+180%
Lv5	+230%

Affinities: Imposing Rarity: Rare Max Level: 5

Spines at level 4 returns 180% of the damage you take on contact. On Pressure 10, where enemies hit harder, this means enemies effectively kill themselves faster. The reflect build (Spines + Poisonous + Detachable) is the only build that scales better with higher pressure because enemy damage feeds your reflect loop.

The catch: you need the HP to survive the contact in the first place. Spines without defense is suicide.

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A-Tier: Strong Pickups in Any Build

Massive size build with Alpha. Size increases your hitbox but also your damage and intimidation factor.

Alpha

Level	Social	Size	Max HP (Boss)
Lv1	1	0.07	12 (Boss only)
Lv3	3.8	0.23	30 (Boss only)

Rarity: Rare | Affinities: Gregarious, Imposing Max Level: 3

Alpha gives Social, Size, and — at Boss rarity — Max HP. It is a strong secondary pick for Body Slam and Social builds. The Social stat from Alpha benefits pack damage if you pivot into a Gregarious route.

Plating

Rarity: Rare | Affinities: Imposing Effect: Reduces close-range damage taken

Plating is the single best defensive pickup on Pressure 8+. It directly reduces the damage type that kills you most often on higher Pressure — getting swarmed by melee enemies. I take Plating over Shell on Pressure 10 because Plating reduces contact damage before it reaches your HP, which means Spines reflect calculations start from a lower base.

Shell

Level	Damage Resistance
Lv1	15%
Lv3	35%

Rarity: Rare | Affinities: Carcinisation, Imposing Max Level: 3

Shell provides percentage-based damage resistance. At level 3, it reduces all incoming damage by 35%. This is excellent on any build that expects to take hits — which is every build on Pressure 8+.

The difference between Shell and Plating: Shell is percentage-based and works against all damage types. Plating is fixed reduction and works best against melee. Run both if you can afford the slots.

Max HP

Rarity: Rare | Affinities: Imposing Effect: Increases maximum HP

Simple. Direct. Essential for every Pressure 6+ run. Every 10 points of Max HP is one extra hit you can take. For Body Slam builds, every 10 HP is also 1.7 extra damage per slam.

Revenge

Level	Duration
Lv1	3s
Lv3	6s

Rarity: Rare | Affinities: Imposing, Predator Effect: Temporarily raises Physical and Ability after taking damage.

Revenge rewards you for surviving hits. At level 3, a 6-second damage boost after every hit translates to significant DPS increases, especially in boss fights where you are taking damage constantly. I rate it A-Tier instead of S-Tier because it does nothing if you are not getting hit — speed runners or dodge specialists get zero value.

Subcutaneous Fat

Level	Damage Resistance	Cold Adaptation
Lv1	5%	0.33
Lv3	15%	1.0

Rarity: Rare | Affinities: Imposing Max Level: 3

Subcutaneous Fat gives both damage resistance and cold adaptation in one slot. On cold biome starts (Pressure 6+ random biomes), this trait is worth its weight in gold because cold damage will rapidly drain your HP without any adaptation.

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B-Tier: Situationally Good

Spines and Poisonous in a reflect setup. B-Tier alone, S-Tier when combined correctly.

Agile

Level	Dodge Chance
Lv1	5%
Lv5	15%

Rarity: Common | Affinities: Prey Max Level: 5

Agile gives a percentage dodge chance. At level 5, 15% dodge means roughly 1 in 7 attacks does nothing. The problem: 15% is not reliable enough to build around. It is a nice bonus on an existing build but not a reason to pick Agile over Mass or Max HP.

Carnivore

Level	Meat Progress Increase
Lv1	25%
Lv5	75%

Rarity: Rare | Affinities: Predator Max Level: 5

Carnivore works if you are in a meat-rich biome. It does nothing in areas with mostly plants or fungi. Since you cannot control biome start (especially on Pressure 6+), Carnivore is too inconsistent for higher tiers.

Detachable Tail

Rarity: Rare | Affinities: Prey Effect: Spines trigger on dodge

B-Tier alone because it does nothing without Spines. S-Tier within a Spines build. The combination of Spines + Detachable turns your dodge into an offensive tool, which is the difference between a good reflect build and a great one.

Nocturnal / Diurnal

Trait	Effect
Nocturnal	+damage at night, +Senses
Diurnal	+damage during day

Rarity: Rare | Max Level: 3

These are free damage if you time your fights to match the cycle. The problem: Pressure 8+ environmental events can force you into fights at the wrong time of day. Both traits lose value when you cannot control engagement timing.

Prehensile Tail

Level	Feeding Distance
Lv1	+0.4
Lv3	+0.8

Rarity: Common | Affinities: Prey Max Level: 3

Increases feeding range. Useful but Trunk does the same thing better (feeding distance + damage). Pick Prehensile Tail only if Trunk is not available and you need the range.

Pack

Level	Damage per Charmed Ally
Lv1	+10%
Lv3	+25%

Rarity: Rare | Affinities: Gregarious Max Level: 3

Pack’s damage bonus scales with how many charmed allies you maintain. At level 3 with 3 charms active, that is +75% damage. But the condition is the problem — charms die fast on Pressure 6+, and maintaining 3+ charms through a boss fight is unreliable.

Toe Beans

Rarity: Rare | Affinities: Gregarious Type: Attack with charm chance

The attack is mediocre, but the charm proc on hit is valuable for Social builds. B-Tier alone. A-Tier in Social Pack builds.

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C-Tier: Filler You Take When Nothing Else Shows

Arms

Level	Physical Damage
Lv1	0.5
Lv5	2.5

Rarity: Common | Affinities: Predator Max Level: 5

Arms gives Physical damage. That is it. No secondary effect, no synergy. It is fine filler when you need to pad your Physical stat, but you should never pick Arms over Mass, Trunk, or Cheek Pouch.

Dexterous

Level	Attack Speed
Lv1	3%
Lv5	15%

Rarity: Common | Affinities: Prey Max Level: 5

15% attack speed at level 5 sounds good until you realize most of your damage comes from abilities, not basic attacks. Dexterous buffs auto-attacks almost exclusively. It has a minor synergy with Spur (auto-trigger attack) but even then, the damage increase is modest.

Fur

Level	Cold Adaptation
Lv1	0.15
Lv5	0.75

Rarity: Common | Affinities: Prey Max Level: 5

Fur is a dedicated cold adaptation piece. If you start in a cold biome, it is a life-saver. If you start anywhere else, it is a wasted slot. Subcutaneous Fat is strictly better because it also gives damage resistance.

Legs

Level	Speed
Lv1	0.1
Lv5	0.5

Rarity: Common | Affinities: Prey Max Level: 5

Legs gives speed. Speed is essential for positioning. But Sprint gives more speed per level with fewer investment points. Take Legs if Sprint is not available and you need mobility, which is often.

Sprint

Level	Speed
Lv1	0.15
Lv3	0.45

Rarity: Common | Affinities: Predator Max Level: 3

Sprint gives more speed per level than Legs but caps at level 3 instead of 5. At max level, Sprint gives 0.45 speed to Legs’ 0.5. Unless you are going deep into a speed-focused build, Sprint is the better pick because it frees up levels for other traits.

Synapse

Level	Cooldown Reduction
Lv1	5%
Lv3	15%

Rarity: Rare | Affinities: Trickster Max Level: 3

15% cooldown reduction at level 3 benefits every build. It just does not benefit any build enough to be higher than C-Tier. It is a nice-to-have, not a build-around.

Herbivore / Piscivore / Omnivore

Trait	Effect
Herbivore	+plant food progress
Piscivore	+fish food progress
Omnivore	+all food progress

Rarity: Common to Rare

These all do the same thing: increase food progress for specific food types. Herbivore and Piscivore are at least conditional — they work well in the right biome. Omnivore is the weakest because the progress increase is diluted across all food types and in practice you barely notice the difference.

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F-Tier: Traps That Waste Your Evolution Slot

Hollow Bones

Level	Speed	Damage Resistance Penalty
Lv1	+0.15	-5%
Lv5	+0.75	-20%

Rarity: Common | Affinities: Prey Max Level: 5

Hollow Bones gives speed at the cost of damage resistance. At level 5, you lose 20% damage resistance for 0.75 speed. On Pressure 6+, this trade-off is actively harmful. You will die faster than the speed can save you. I tested Hollow Bones on Pressure 6. I died on Pressure 6. Do not pick this.

Chonky

Level	Size	Physical
Lv1	+0.08	0.3
Lv3	+0.24	0.9

Rarity: Common | Affinities: Imposing Max Level: 3

Chonky looks good on paper — Size and Physical in one slot. The problem: Chonky’s size increase is mostly cosmetic. Mass gives significantly more Physical damage per level. Compare Mass level 3: 1.5-3.6 Physical (depending on rarity) versus Chonky level 3: 0.9 Physical. Mass does not even cost a Common rarity slot. Chonky is a noob trap.

Overwhelm

Level	Bonus Damage per Active Plating
Lv1	+10%
Lv3	+25%

Rarity: Rare | Affinities: Imposing Max Level: 3

Overwhelm’s damage bonus depends on having Plating active. Without Plating, it does nothing. Even with Plating, the bonus is conditional and the base stat contribution is zero. Take Revenge instead — it gives a broader damage boost without the Plating requirement.

Carnivore (on wrong biome)

Already listed as B-Tier above, but worth repeating: Carnivore on a plant-heavy biome is a dead slot. The game does not tell you biome composition before you pick.

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Tier List Quick Reference Table

Specialisation choices in Everything is Crab. Knowing which traits are traps saves you wasted slots.

Trait	Tier	Rarity	Best Used In
Cheek Pouch	S	Rare	Every build
Mass	S	Rare	Physical / Body Slam
Trunk	S	Rare	Hybrid / Any
Body Slam	S	Rare	Tank builds
Spines	S	Rare	Reflect / Contact
Plating	A	Rare	Every build (Pressure 6+)
Shell	A	Rare	Every tank build
Alpha	A	Rare	Social / Physical
Max HP	A	Rare	Every build
Revenge	A	Rare	Tank / Bruiser
Subcutaneous Fat	A	Rare	Cold biome + tank
Agile	B	Common	Dodge builds
Carnivore	B	Rare	Meat biomes
Detachable	B	Rare	Spines builds
Toe Beans	B	Rare	Social builds
Pack	B	Rare	Social builds
Legs	C	Common	Movement filler
Sprint	C	Common	Movement filler
Synapse	C	Rare	Cooldown filler
Arms	C	Common	Physical filler
Fur	C	Common	Cold biome
Herbivore	C	Common	Plant biome
Hollow Bones	F	Common	Never
Chonky	F	Common	Never
Overwhelm	F	Rare	Not without Plating

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Affinity System Explained

Each biome has different food sources and environmental hazards. Your trait affinities determine which evolution paths are available.

There are five affinity types:

Affinity	Theme	Core Traits
Gregarious	Social, pack, charm	Cheek Pouch, Alpha, Tail Wag, Pack, Antennae
Imposing	Bulk, tank, physical	Mass, Plating, Shell, Body Slam, Spines, Alpha
Predator	Aggression, attack	Arms, Sprint, Carnivore, Claws, Jaws, Horns
Prey	Speed, evasion, survival	Legs, Agile, Fur, Hollow Bones, Prehensile Tail
Trickster	Poison, cooldown, utility	Cheek Pouch, Synapse, Poisonous, Stinger

How affinities affect your run:

Each trait you pick increases affinity points for its associated types. When an affinity reaches certain thresholds, it unlocks or blocks trait groups:

• Unlocking: Picking 3+ traits from one affinity unlocks that affinity’s specialisations (e.g., 3 Imposing traits unlock Carcinisation-related options).
• Blocking: Some affinities are mutually exclusive. Taking Predator traits may reduce your chance of seeing Prey trait options.
• Carcinisation: The game’s namesake mechanic. Picking enough Imposing and Carcinisation-affinity traits triggers the “going full crab” evolution path, which replaces standard trait choices with crab-specific options. This is not always beneficial — crab traits are powerful but narrow.

Practical advice: Do not force an affinity. Let the run’s drops guide your affinity choices. If you see three good Imposing traits in a row, build Imposing. If the game offers Trickster pieces, lean into Trickster. Forcing Predator when the game is handing you Gregarious pieces is how runs die.

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Environmental adaptation traits like Fur and Subcutaneous Fat matter more when Pressure 6+ randomizes your starting biome.

Everything is Crab Trait Rankings: What Actually Wins Runs

After 40+ hours, here is what I know for certain:

The S-Tier traits (Cheek Pouch, Mass, Trunk, Body Slam, Spines) are not theoretical. They are the five traits I see in every successful Pressure 10 run. Not all five in the same run, but at least two or three of them every single time.

The F-Tier traits (Hollow Bones, Chonky, Overwhelm) are not “bad but usable.” They actively cost you the run. Hollow Bones’ resistance penalty killed me within two biomes both times I tested it on Pressure 6. Chonky’s stat efficiency is so poor you are better off picking nothing and waiting for the next roll.

The trap of C-Tier filler: You only have 15-20 evolution slots in a standard run (before Endless mode). Every C-tier pick is a slot you did not spend on an S-Tier or A-Tier piece. Do not fill slots just because you can. Skip a level if the offered traits are all C-tier or below. The next roll will be better.

Affinity planning is the difference between intermediate and advanced play. Beginners ignore affinities and still clear normal. Intermediate players track affinities and clear Pressure 5-7. Advanced players plan their affinity route from the first pick and clear Pressure 10 consistently.

If you take one thing from this list: always pick Cheek Pouch first if it appears. It is not close.