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 · Saturday

Challenge of October 24, 2026

Photos: Slow Cheetah Skeletons, Wikipedia

ClassicHarder than 93% of days

Brown Woolly Monkey

Lagothrix lagothricha

Mammalia/Primates/Atelidae/Lagothrix/Lagothrix lagothricha

Players: 49
Median time: 9 sec

Solved on try

137%
245%
30%
40%
×18%

Most confused with

Mantled HowlerAlouatta palliata8 of 49
Colombian Red HowlerAlouatta seniculus8 of 49
Red-Faced Spider MonkeyAteles paniscus5 of 49

Photos: Skull Index, Wikipedia

TaxonomyHarder than 85% of days

Northern Gannet

Morus bassanus

Where the community fell · players: 45

ClassAves93%
OrderSuliformes64%
29% fell here · Most picked wrong answer: Gruiformes (5 of 42)
FamilySulidae60%
GenusMorus36%
SpeciesMorus bassanus31%

31% reached the species

Skull MatchHarder than 88% of days

The skulls

Sand CatsFelis margarita
Tigers [Bengal ssp.]Panthera tigris tigris
African golden catCaracal aurata
Eurasian LynxesLynx lynx

Decoy namesOcelot, African Wild Cats

Players: 42
Matched them all: 38%
Mistakes on average: 3.9

Most common swap

African golden cat taken for Ocelot×23
African golden cat taken for African Wild Cats×16
African golden cat taken for Eurasian Lynxes×16

Speed RunHarder than 90% of days

The race

Players: 40
Finished: 80%
Median time: 37 sec
Median score: 5,443
Best score: 7,553

Skulls reached

1080%
93%
83%
78%
65%
13%

The skulls of the race · players: 40

1. European Badgers56% on the first try
2. Humboldt’S Squirrel Monkey72% on the first try
3. Indian Leopards77% on the first try
4. Black tamarin62% on the first try
5. Common Brown Lemur46% on the first try
6. Nile Crocodiles36% on the first try
7. Black rat51% on the first try
8. Zebu76% on the first try
9. Asian Small-Clawed Otters70% on the first try
10. Southeastern coyote72% on the first try

Toughest skull: Asian Small-Clawed Otters · 30% fell here · median time 2 sec

Odd One OutEasier than 52% of days

The odd ones out

Players: 38
Won: 92%
Found on average: 3.5/5

Round 1 of 5 · Class
the three: Aves·intruder: Reptilia
- Russian tortoiseAgrionemys horsfieldii
- Southern Ground HornbillBucorvus leadbeateri
- Common Wood PigeonsColumba palumbus
- Long-Eared OwlAsio otus
100% on the first try · 0% on the second · 95% named the group
Round 2 of 5 · Order
the three: Carnivora·intruder: Dasyuromorphia
- Tasmanian DevilSarcophilus harrisii
- American Hog-Nosed SkunkConepatus leuconotus
- Ringed SealPusa hispida
- Marbled PolecatVormela peregusna
45% on the first try · 21% on the second · 53% named the group
Round 3 of 5 · Family
the three: Cercopithecidae·intruder: Callitrichidae
- Common MarmosetCallithrix jacchus
- Patas monkeyErythrocebus patas
- GeladaTheropithecus gelada
- Greater Spot-Nosed MonkeyCercopithecus nictitans
87% on the first try · 5% on the second · 50% named the group
Round 4 of 5 · Genus
the three: Mustela·intruder: Martes
- European steppe polecatMustela eversmanii hungarica
- European Pine MartenMartes martes
- European polecatMustela putorius
- Siberian WeaselsMustela sibirica
50% on the first try · 26% on the second · 61% named the group
Round 5 of 5 · Species
the three: Panthera tigris·intruder: Panthera leo
- Tigers [Unknown ssp.]Panthera tigris
- Tigers [Bali ssp.]Panthera tigris sondaica
- African Lions (Northern/Western Clade)Panthera leo leo
- Tigers [Unknown ssp.]Panthera tigris
3% on the first try · 16% on the second · 16% named the group · 82% fell here

Play today’s challenge Past challenges

Challenge of October 24, 2026

Photos: Slow Cheetah Skeletons, Wikipedia

ClassicHarder than 93% of days

Brown Woolly Monkey

Lagothrix lagothricha

Mammalia/Primates/Atelidae/Lagothrix/Lagothrix lagothricha

Players: 49
Median time: 9 sec

Solved on try

137%
245%
30%
40%
×18%

Most confused with

Mantled HowlerAlouatta palliata8 of 49
Colombian Red HowlerAlouatta seniculus8 of 49
Red-Faced Spider MonkeyAteles paniscus5 of 49

Photos: Skull Index, Wikipedia

TaxonomyHarder than 85% of days

Northern Gannet

Morus bassanus

Where the community fell · players: 45

ClassAves93%
OrderSuliformes64%
29% fell here · Most picked wrong answer: Gruiformes (5 of 42)
FamilySulidae60%
GenusMorus36%
SpeciesMorus bassanus31%

31% reached the species

Skull MatchHarder than 88% of days

The skulls

Sand CatsFelis margarita
Tigers [Bengal ssp.]Panthera tigris tigris
African golden catCaracal aurata
Eurasian LynxesLynx lynx

Decoy namesOcelot, African Wild Cats

Players: 42
Matched them all: 38%
Mistakes on average: 3.9

Most common swap

African golden cat taken for Ocelot×23
African golden cat taken for African Wild Cats×16
African golden cat taken for Eurasian Lynxes×16

Speed RunHarder than 90% of days

The race

Players: 40
Finished: 80%
Median time: 37 sec
Median score: 5,443
Best score: 7,553

Skulls reached

1080%
93%
83%
78%
65%
13%

The skulls of the race · players: 40

1. European Badgers56% on the first try
2. Humboldt’S Squirrel Monkey72% on the first try
3. Indian Leopards77% on the first try
4. Black tamarin62% on the first try
5. Common Brown Lemur46% on the first try
6. Nile Crocodiles36% on the first try
7. Black rat51% on the first try
8. Zebu76% on the first try
9. Asian Small-Clawed Otters70% on the first try
10. Southeastern coyote72% on the first try

Toughest skull: Asian Small-Clawed Otters · 30% fell here · median time 2 sec

Odd One OutEasier than 52% of days

The odd ones out

Players: 38
Won: 92%
Found on average: 3.5/5

Round 1 of 5 · Class
the three: Aves·intruder: Reptilia
- Russian tortoiseAgrionemys horsfieldii
- Southern Ground HornbillBucorvus leadbeateri
- Common Wood PigeonsColumba palumbus
- Long-Eared OwlAsio otus
100% on the first try · 0% on the second · 95% named the group
Round 2 of 5 · Order
the three: Carnivora·intruder: Dasyuromorphia
- Tasmanian DevilSarcophilus harrisii
- American Hog-Nosed SkunkConepatus leuconotus
- Ringed SealPusa hispida
- Marbled PolecatVormela peregusna
45% on the first try · 21% on the second · 53% named the group
Round 3 of 5 · Family
the three: Cercopithecidae·intruder: Callitrichidae
- Common MarmosetCallithrix jacchus
- Patas monkeyErythrocebus patas
- GeladaTheropithecus gelada
- Greater Spot-Nosed MonkeyCercopithecus nictitans
87% on the first try · 5% on the second · 50% named the group
Round 4 of 5 · Genus
the three: Mustela·intruder: Martes
- European steppe polecatMustela eversmanii hungarica
- European Pine MartenMartes martes
- European polecatMustela putorius
- Siberian WeaselsMustela sibirica
50% on the first try · 26% on the second · 61% named the group
Round 5 of 5 · Species
the three: Panthera tigris·intruder: Panthera leo
- Tigers [Unknown ssp.]Panthera tigris
- Tigers [Bali ssp.]Panthera tigris sondaica
- African Lions (Northern/Western Clade)Panthera leo leo
- Tigers [Unknown ssp.]Panthera tigris
3% on the first try · 16% on the second · 16% named the group · 82% fell here

Challenge of October 24, 2026

Brown Woolly Monkey

Northern Gannet

The skulls

The race

The odd ones out

Challenge of 28 de setembro

Lobo-guará

Lobo-guará

Challenge of October 24, 2026

Brown Woolly Monkey

Northern Gannet

The skulls

The race

The odd ones out