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 · Thursday

Challenge of October 15, 2026

Photos: Slow Cheetah Skeletons, Wikipedia

ClassicHarder than 99% of days

Silvery Lutang

Trachypithecus cristatus

Mammalia/Primates/Cercopithecidae/Trachypithecus/Trachypithecus cristatus

Players: 45
Median time: 7 sec

Solved on try

131%
242%
30%
40%
×27%

Most confused with

Bald UakariCacajao calvus3 of 45
Angolan ColobusColobus angolensis3 of 45
Black-striped capuchinSapajus libidinosus2 of 45

Photos: Slow Cheetah Skeletons, Wikipedia

TaxonomyEasier than 64% of days

Humboldt’S Squirrel Monkey

Saimiri cassiquiarensis

Where the community fell · players: 42

ClassMammalia100%
OrderPrimates98%
FamilyCebidae88%
GenusSaimiri71%
17% fell here · Most picked wrong answer: Connochaetes (2 of 37)
SpeciesSaimiri cassiquiarensis60%

60% reached the species

Skull MatchHarder than 91% of days

The skulls

Egyptian mongooseHerpestes ichneumon
Hooded SkunkMephitis macroura
Marsh MongooseAtilax paludinosus
Common genetGenetta genetta

Decoy namesWhite-tailed mongoose, Transcaucasian weasel

Players: 40
Matched them all: 28%
Mistakes on average: 4

Most common swap

Common genet taken for White-tailed mongoose×15
Common genet taken for Transcaucasian weasel×14
Egyptian mongoose taken for White-tailed mongoose×11

Speed RunHarder than 65% of days

The race

Players: 39
Finished: 90%
Median time: 37 sec
Median score: 5,745
Best score: 7,339

Skulls reached

1090%
95%
85%

The skulls of the race · players: 39

1. European Badgers46% on the first try
2. Humboldt’S Squirrel Monkey92% on the first try
3. Indian Leopards77% on the first try
4. Black tamarin64% on the first try
5. Common Brown Lemur54% on the first try
6. Nile Crocodiles51% on the first try
7. Black rat41% on the first try
8. Zebu74% on the first try
9. Asian Small-Clawed Otters76% on the first try
10. Southeastern coyote71% on the first try

Toughest skull: Southeastern coyote · 29% fell here · median time 2.1 sec

Odd One OutHarder than 87% of days

The odd ones out

Players: 37
Won: 73%
Found on average: 2.9/5

Round 1 of 5 · Class
the three: Aves·intruder: Reptilia
- Common snapping turtleChelydra serpentina
- Common Wood PigeonsColumba palumbus
- Domestic gooseAnser anser domesticus
- White-throated toucanRamphastos tucanus
100% on the first try · 0% on the second · 100% named the group
Round 2 of 5 · Order
the three: Rodentia·intruder: Lagomorpha
- Merriam’S Kangaroo RatDipodomys ordii
- Black AgoutiDasyprocta fuliginosa
- Long-tailed chinchillaChinchilla lanigera
- Cape HareLepus capensis
24% on the first try · 32% on the second · 49% named the group
Round 3 of 5 · Family
the three: Cervidae·intruder: Bovidae
- Bay DuikerCephalophus dorsalis
- CaribouRangifer tarandus
- MooseAlces alces
- Fallow DeerDama dama
43% on the first try · 22% on the second · 24% named the group
Round 4 of 5 · Genus
the three: Papio·intruder: Colobus
- Mantled guerezaColobus guereza
- Kinda BaboonPapio kindae
- Chacma BaboonPapio ursinus
- Guinea baboonPapio papio
5% on the first try · 43% on the second · 24% named the group
Round 5 of 5 · Species
the three: Panthera tigris·intruder: Panthera leo
- African Lions (Northern/Western Clade)Panthera leo leo
- Tigers [Bengal ssp.]Panthera tigris tigris
- Tigers [Unknown ssp.]Panthera tigris
- Tigers [Bengal ssp.]Panthera tigris tigris
8% on the first try · 16% on the second · 5% named the group · 76% fell here

Play today’s challenge Past challenges

Challenge of October 15, 2026

Photos: Slow Cheetah Skeletons, Wikipedia

ClassicHarder than 99% of days

Silvery Lutang

Trachypithecus cristatus

Mammalia/Primates/Cercopithecidae/Trachypithecus/Trachypithecus cristatus

Players: 45
Median time: 7 sec

Solved on try

131%
242%
30%
40%
×27%

Most confused with

Bald UakariCacajao calvus3 of 45
Angolan ColobusColobus angolensis3 of 45
Black-striped capuchinSapajus libidinosus2 of 45

Photos: Slow Cheetah Skeletons, Wikipedia

TaxonomyEasier than 64% of days

Humboldt’S Squirrel Monkey

Saimiri cassiquiarensis

Where the community fell · players: 42

ClassMammalia100%
OrderPrimates98%
FamilyCebidae88%
GenusSaimiri71%
17% fell here · Most picked wrong answer: Connochaetes (2 of 37)
SpeciesSaimiri cassiquiarensis60%

60% reached the species

Skull MatchHarder than 91% of days

The skulls

Egyptian mongooseHerpestes ichneumon
Hooded SkunkMephitis macroura
Marsh MongooseAtilax paludinosus
Common genetGenetta genetta

Decoy namesWhite-tailed mongoose, Transcaucasian weasel

Players: 40
Matched them all: 28%
Mistakes on average: 4

Most common swap

Common genet taken for White-tailed mongoose×15
Common genet taken for Transcaucasian weasel×14
Egyptian mongoose taken for White-tailed mongoose×11

Speed RunHarder than 65% of days

The race

Players: 39
Finished: 90%
Median time: 37 sec
Median score: 5,745
Best score: 7,339

Skulls reached

1090%
95%
85%

The skulls of the race · players: 39

1. European Badgers46% on the first try
2. Humboldt’S Squirrel Monkey92% on the first try
3. Indian Leopards77% on the first try
4. Black tamarin64% on the first try
5. Common Brown Lemur54% on the first try
6. Nile Crocodiles51% on the first try
7. Black rat41% on the first try
8. Zebu74% on the first try
9. Asian Small-Clawed Otters76% on the first try
10. Southeastern coyote71% on the first try

Toughest skull: Southeastern coyote · 29% fell here · median time 2.1 sec

Odd One OutHarder than 87% of days

The odd ones out

Players: 37
Won: 73%
Found on average: 2.9/5

Round 1 of 5 · Class
the three: Aves·intruder: Reptilia
- Common snapping turtleChelydra serpentina
- Common Wood PigeonsColumba palumbus
- Domestic gooseAnser anser domesticus
- White-throated toucanRamphastos tucanus
100% on the first try · 0% on the second · 100% named the group
Round 2 of 5 · Order
the three: Rodentia·intruder: Lagomorpha
- Merriam’S Kangaroo RatDipodomys ordii
- Black AgoutiDasyprocta fuliginosa
- Long-tailed chinchillaChinchilla lanigera
- Cape HareLepus capensis
24% on the first try · 32% on the second · 49% named the group
Round 3 of 5 · Family
the three: Cervidae·intruder: Bovidae
- Bay DuikerCephalophus dorsalis
- CaribouRangifer tarandus
- MooseAlces alces
- Fallow DeerDama dama
43% on the first try · 22% on the second · 24% named the group
Round 4 of 5 · Genus
the three: Papio·intruder: Colobus
- Mantled guerezaColobus guereza
- Kinda BaboonPapio kindae
- Chacma BaboonPapio ursinus
- Guinea baboonPapio papio
5% on the first try · 43% on the second · 24% named the group
Round 5 of 5 · Species
the three: Panthera tigris·intruder: Panthera leo
- African Lions (Northern/Western Clade)Panthera leo leo
- Tigers [Bengal ssp.]Panthera tigris tigris
- Tigers [Unknown ssp.]Panthera tigris
- Tigers [Bengal ssp.]Panthera tigris tigris
8% on the first try · 16% on the second · 5% named the group · 76% fell here

Challenge of October 15, 2026

Silvery Lutang

Humboldt’S Squirrel Monkey

The skulls

The race

The odd ones out

Challenge of 28 de setembro

Lobo-guará

Lobo-guará

Challenge of October 15, 2026

Silvery Lutang

Humboldt’S Squirrel Monkey

The skulls

The race

The odd ones out