Skulled is a free educational game where you identify animal skulls. Learn taxonomy, collect cards, and compete on the global leaderboard.

How do I play Skulled?

Look at the skull image, analyze its features, and choose the correct animal species from the options. You have 2 attempts per round.

Is Skulled free to play?

Yes! Skulled is completely free to play. Create an account to save your progress and compete on the leaderboard.

What game modes are available?

Skulled offers multiple modes: Classic (identify species), Progressive (identify taxonomy levels), Speedrun (60-second challenge), and Daily Challenge.

How do I collect skull cards?

Win games to earn card packs. Open packs to collect skull cards for your album. Rare and legendary cards are harder to find!

What is the Daily Challenge?

The Daily Challenge presents a new skull every day for all players worldwide. Compete with friends and see who can identify it first!

How does the Speedrun mode work?

In Speedrun mode, you have 60 seconds to identify as many skulls as possible. The faster and more accurate you are, the higher your score!

Can I play Skulled on my phone?

Yes! Skulled is a web-based game that works on any device with a modern browser - desktop, tablet, or mobile phone.

Is Skulled scientifically accurate?

Skulled uses real photographs of animal skulls and accurate scientific nomenclature. It is designed to be both a fun game and a valid educational tool for biology students and enthusiasts.

What animals are included in the game?

Skulled features a wide variety of vertebrates including mammals, birds, reptiles, and amphibians from all continents.

Daily Challenge · Monday

Challenge of October 5, 2026

Photos: Slow Cheetah Skeletons, Wikipedia

ClassicHarder than 68% of days

Greater Hedgehog Tenrec

Setifer setosus

Mammalia/Afrosoricida/Tenrecidae/Setifer/Setifer setosus

Players: 32
Median time: 7 sec

Solved on try

156%
231%
30%
40%
×13%

Most confused with

Tailless TenrecTenrec ecaudatus11 of 32
White-tailed mongooseIchneumia albicauda1 of 32
Greater Hog BadgersArctonyx collaris1 of 32

Photos: Slow Cheetah Skeletons, Wikipedia

TaxonomyEasier than 76% of days

Olive Baboon/Yellow Baboon Hybrid

Papio anubis x Papio cynocephalus

Where the community fell · players: 32

ClassMammalia97%
OrderPrimates97%
FamilyCercopithecidae81%
16% fell here · Most picked wrong answer: Dipodidae (2 of 31)
GenusPapio72%
SpeciesPapio anubis x Papio cynocephalus66%

66% reached the species

Skull MatchHarder than 51% of days

The skulls

Reeve's MuntjacMuntiacus reevesi
Tufted DeerElaphodus cephalophus
Domestic AlpacaVicugna pacos
Roe DeerCapreolus capreolus

Decoy namesMoose, Indian Muntjac

Players: 31
Matched them all: 65%
Mistakes on average: 2.7

Most common swap

Tufted Deer taken for Indian Muntjac×17
Reeve's Muntjac taken for Indian Muntjac×12
Domestic Alpaca taken for Moose×11

Speed RunHarder than 84% of days

The race

Players: 31
Finished: 74%
Median time: 38 sec
Median score: 5,623
Best score: 7,495

Skulls reached

1074%
910%
83%
610%
33%

The skulls of the race · players: 31

1. Domestic Pig – Feral84% on the first try
2. Blue Duiker58% on the first try
3. Coypu74% on the first try
4. Emerald tree boa87% on the first try
5. Eurasian Lynxes63% on the first try
6. Black tamarin43% on the first try
7. Snow Leopard56% on the first try
8. South American Fur Seals59% on the first try
9. Siamang77% on the first try
10. Mazama Pocket Gopher78% on the first try

Toughest skull: South American Fur Seals · 41% fell here · median time 2.6 sec

Odd One OutEasier than 78% of days

The odd ones out

Players: 31
Won: 97%
Found on average: 4.1/5

Round 1 of 5 · Class
the three: Aves·intruder: Reptilia
- Great TitsParus major
- African spurred tortoiseCentrochelys sulcata
- Abdim's StorkCiconia abdimii
- OstrichStruthio camelus
90% on the first try · 10% on the second · 94% named the group
Round 2 of 5 · Order
the three: Eulipotyphla·intruder: Dasyuromorphia
- Common shrewSorex araneus
- Eastern MoleScalopus aquaticus
- Long-Eared HedgehogHemiechinus auritus
- Tasmanian DevilSarcophilus harrisii
65% on the first try · 23% on the second · 35% named the group
Round 3 of 5 · Family
the three: Mephitidae·intruder: Viverridae
- Small Indian civetViverricula indica
- American Hog-Nosed SkunkConepatus leuconotus
- Molina's Hog-nosed SkunksConepatus chinga
- Striped SkunksMephitis mephitis
52% on the first try · 45% on the second · 26% named the group
Round 4 of 5 · Genus
the three: Mustela·intruder: Martes
- European polecatMustela putorius
- Siberian WeaselsMustela sibirica
- StoatsMustela erminea
- Japanese MartenMartes melampus
42% on the first try · 23% on the second · 35% named the group
Round 5 of 5 · Species
the three: Ursus arctos·intruder: Ursus americanus
- American Black BearsUrsus americanus
- Brown BearsUrsus arctos
- Brown BearsUrsus arctos
- Brown BearsUrsus arctos
32% on the first try · 26% on the second · 23% named the group · 42% fell here

Play today’s challenge Past challenges

Challenge of October 5, 2026

Photos: Slow Cheetah Skeletons, Wikipedia

ClassicHarder than 68% of days

Greater Hedgehog Tenrec

Setifer setosus

Mammalia/Afrosoricida/Tenrecidae/Setifer/Setifer setosus

Players: 32
Median time: 7 sec

Solved on try

156%
231%
30%
40%
×13%

Most confused with

Tailless TenrecTenrec ecaudatus11 of 32
White-tailed mongooseIchneumia albicauda1 of 32
Greater Hog BadgersArctonyx collaris1 of 32

Photos: Slow Cheetah Skeletons, Wikipedia

TaxonomyEasier than 76% of days

Olive Baboon/Yellow Baboon Hybrid

Papio anubis x Papio cynocephalus

Where the community fell · players: 32

ClassMammalia97%
OrderPrimates97%
FamilyCercopithecidae81%
16% fell here · Most picked wrong answer: Dipodidae (2 of 31)
GenusPapio72%
SpeciesPapio anubis x Papio cynocephalus66%

66% reached the species

Skull MatchHarder than 51% of days

The skulls

Reeve's MuntjacMuntiacus reevesi
Tufted DeerElaphodus cephalophus
Domestic AlpacaVicugna pacos
Roe DeerCapreolus capreolus

Decoy namesMoose, Indian Muntjac

Players: 31
Matched them all: 65%
Mistakes on average: 2.7

Most common swap

Tufted Deer taken for Indian Muntjac×17
Reeve's Muntjac taken for Indian Muntjac×12
Domestic Alpaca taken for Moose×11

Speed RunHarder than 84% of days

The race

Players: 31
Finished: 74%
Median time: 38 sec
Median score: 5,623
Best score: 7,495

Skulls reached

1074%
910%
83%
610%
33%

The skulls of the race · players: 31

1. Domestic Pig – Feral84% on the first try
2. Blue Duiker58% on the first try
3. Coypu74% on the first try
4. Emerald tree boa87% on the first try
5. Eurasian Lynxes63% on the first try
6. Black tamarin43% on the first try
7. Snow Leopard56% on the first try
8. South American Fur Seals59% on the first try
9. Siamang77% on the first try
10. Mazama Pocket Gopher78% on the first try

Toughest skull: South American Fur Seals · 41% fell here · median time 2.6 sec

Odd One OutEasier than 78% of days

The odd ones out

Players: 31
Won: 97%
Found on average: 4.1/5

Round 1 of 5 · Class
the three: Aves·intruder: Reptilia
- Great TitsParus major
- African spurred tortoiseCentrochelys sulcata
- Abdim's StorkCiconia abdimii
- OstrichStruthio camelus
90% on the first try · 10% on the second · 94% named the group
Round 2 of 5 · Order
the three: Eulipotyphla·intruder: Dasyuromorphia
- Common shrewSorex araneus
- Eastern MoleScalopus aquaticus
- Long-Eared HedgehogHemiechinus auritus
- Tasmanian DevilSarcophilus harrisii
65% on the first try · 23% on the second · 35% named the group
Round 3 of 5 · Family
the three: Mephitidae·intruder: Viverridae
- Small Indian civetViverricula indica
- American Hog-Nosed SkunkConepatus leuconotus
- Molina's Hog-nosed SkunksConepatus chinga
- Striped SkunksMephitis mephitis
52% on the first try · 45% on the second · 26% named the group
Round 4 of 5 · Genus
the three: Mustela·intruder: Martes
- European polecatMustela putorius
- Siberian WeaselsMustela sibirica
- StoatsMustela erminea
- Japanese MartenMartes melampus
42% on the first try · 23% on the second · 35% named the group
Round 5 of 5 · Species
the three: Ursus arctos·intruder: Ursus americanus
- American Black BearsUrsus americanus
- Brown BearsUrsus arctos
- Brown BearsUrsus arctos
- Brown BearsUrsus arctos
32% on the first try · 26% on the second · 23% named the group · 42% fell here

Challenge of October 5, 2026

Greater Hedgehog Tenrec

Olive Baboon/Yellow Baboon Hybrid

The skulls

The race

The odd ones out

Challenge of 28 de setembro

Lobo-guará

Lobo-guará

Challenge of October 5, 2026

Greater Hedgehog Tenrec

Olive Baboon/Yellow Baboon Hybrid

The skulls

The race

The odd ones out