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 22, 2026

Photos: Slow Cheetah Skeletons, Skull Index, Wikipedia

ClassicHarder than 99% of days

Virginia Opossums

Didelphis virginiana

Mammalia/Didelphimorphia/Didelphidae/Didelphis/Didelphis virginiana

Players: 165
Median time: 15 sec

Solved on try

132%
234%
30%
40%
×35%

Most confused with

White-Eared OpossumDidelphis albiventris40 of 165
Common OpossumDidelphis marsupialis36 of 165
African golden catCaracal aurata3 of 165

Photos: Slow Cheetah Skeletons, Wikipedia

TaxonomyHarder than 91% of days

Red-Tailed Guenon

Cercopithecus ascanius

Where the community fell · players: 128

ClassMammalia98%
OrderPrimates97%
FamilyCercopithecidae69%
28% fell here · Most picked wrong answer: Indriidae (4 of 124)
GenusCercopithecus52%
SpeciesCercopithecus ascanius26%

26% reached the species

Skull MatchEasier than 55% of days

The skulls

Pratt's Roundleaf BatHipposideros pratti
Southern Long-Nosed ArmadilloDasypus hybridus
Nine-Banded ArmadilloDasypus novemcinctus
Transcaucasian weaselMustela nivalis boccamela

Decoy namesSwamp Rabbit, Southern Three-Banded Armadillo

Players: 102
Matched them all: 72%
Mistakes on average: 2.6

Most common swap

Nine-Banded Armadillo taken for Southern Three-Banded Armadillo×45
Southern Long-Nosed Armadillo taken for Southern Three-Banded Armadillo×37
Nine-Banded Armadillo taken for Southern Long-Nosed Armadillo×30

Speed RunHarder than 100% of days

The race

Players: 82
Finished: 45%
Median time: 52 sec
Median score: 3,971
Best score: 7,435

Skulls reached

1045%
99%
85%
77%
610%
56%
411%
35%
22%

The skulls of the race · players: 82

1. Channel-Billed Toucan82% on the first try
2. Nine-Banded Armadillo79% on the first try
3. Tigers [Siberian ssp.]39% on the first try
4. Siamang53% on the first try
5. Bonnet Macaque52% on the first try
6. Crab-Eating Raccoon61% on the first try
7. Edible dormouse31% on the first try
8. Snow Leopard54% on the first try
9. Dingo57% on the first try
10. Stoats62% on the first try

Toughest skull: Snow Leopard · 46% fell here · median time 2.2 sec

Odd One OutEasier than 68% of days

The odd ones out

Players: 73
Won: 99%
Found on average: 3.9/5

Round 1 of 5 · Class
the three: Amphibia·intruder: Mammalia
- AardvarksOrycteropus afer
- Smooth NewtLissotriton vulgaris
- European Common FrogsRana temporaria
- Asian common toadDuttaphrynus melanostictus
77% on the first try · 15% on the second · 52% named the group
Round 2 of 5 · Order
the three: Rodentia·intruder: Diprotodontia
- PacaranaDinomys branickii
- Greater Cane RatsThryonomys swinderianus
- White-Tailed Prairie DogCynomys leucurus
- Krefft’S GliderPetaurus notatus
68% on the first try · 29% on the second · 81% named the group
Round 3 of 5 · Family
the three: Felidae·intruder: Hyaenidae
- Mountain LionsPuma concolor
- OcelotLeopardus pardalis
- AardwolvesProteles cristata
- ServalsLeptailurus serval
89% on the first try · 7% on the second · 82% named the group
Round 4 of 5 · Genus
the three: Panthera·intruder: Acinonyx
- LionPanthera leo
- LeopardPanthera pardus
- JaguarPanthera onca
- CheetahAcinonyx jubatus
22% on the first try · 30% on the second · 41% named the group · 48% fell here
Round 5 of 5 · Species
the three: Canis lupus·intruder: Canis latrans
- Southeastern coyoteCanis latrans frustor
- Eastern WolfCanis lupus lycaon or Canis lycaon
- Gray wolfCanis lupus
- Eastern WolfCanis lupus lycaon or Canis lycaon
38% on the first try · 16% on the second · 21% named the group

Play today’s challenge Past challenges

Challenge of October 22, 2026

Photos: Slow Cheetah Skeletons, Skull Index, Wikipedia

ClassicHarder than 99% of days

Virginia Opossums

Didelphis virginiana

Mammalia/Didelphimorphia/Didelphidae/Didelphis/Didelphis virginiana

Players: 165
Median time: 15 sec

Solved on try

132%
234%
30%
40%
×35%

Most confused with

White-Eared OpossumDidelphis albiventris40 of 165
Common OpossumDidelphis marsupialis36 of 165
African golden catCaracal aurata3 of 165

Photos: Slow Cheetah Skeletons, Wikipedia

TaxonomyHarder than 91% of days

Red-Tailed Guenon

Cercopithecus ascanius

Where the community fell · players: 128

ClassMammalia98%
OrderPrimates97%
FamilyCercopithecidae69%
28% fell here · Most picked wrong answer: Indriidae (4 of 124)
GenusCercopithecus52%
SpeciesCercopithecus ascanius26%

26% reached the species

Skull MatchEasier than 55% of days

The skulls

Pratt's Roundleaf BatHipposideros pratti
Southern Long-Nosed ArmadilloDasypus hybridus
Nine-Banded ArmadilloDasypus novemcinctus
Transcaucasian weaselMustela nivalis boccamela

Decoy namesSwamp Rabbit, Southern Three-Banded Armadillo

Players: 102
Matched them all: 72%
Mistakes on average: 2.6

Most common swap

Nine-Banded Armadillo taken for Southern Three-Banded Armadillo×45
Southern Long-Nosed Armadillo taken for Southern Three-Banded Armadillo×37
Nine-Banded Armadillo taken for Southern Long-Nosed Armadillo×30

Speed RunHarder than 100% of days

The race

Players: 82
Finished: 45%
Median time: 52 sec
Median score: 3,971
Best score: 7,435

Skulls reached

1045%
99%
85%
77%
610%
56%
411%
35%
22%

The skulls of the race · players: 82

1. Channel-Billed Toucan82% on the first try
2. Nine-Banded Armadillo79% on the first try
3. Tigers [Siberian ssp.]39% on the first try
4. Siamang53% on the first try
5. Bonnet Macaque52% on the first try
6. Crab-Eating Raccoon61% on the first try
7. Edible dormouse31% on the first try
8. Snow Leopard54% on the first try
9. Dingo57% on the first try
10. Stoats62% on the first try

Toughest skull: Snow Leopard · 46% fell here · median time 2.2 sec

Odd One OutEasier than 68% of days

The odd ones out

Players: 73
Won: 99%
Found on average: 3.9/5

Round 1 of 5 · Class
the three: Amphibia·intruder: Mammalia
- AardvarksOrycteropus afer
- Smooth NewtLissotriton vulgaris
- European Common FrogsRana temporaria
- Asian common toadDuttaphrynus melanostictus
77% on the first try · 15% on the second · 52% named the group
Round 2 of 5 · Order
the three: Rodentia·intruder: Diprotodontia
- PacaranaDinomys branickii
- Greater Cane RatsThryonomys swinderianus
- White-Tailed Prairie DogCynomys leucurus
- Krefft’S GliderPetaurus notatus
68% on the first try · 29% on the second · 81% named the group
Round 3 of 5 · Family
the three: Felidae·intruder: Hyaenidae
- Mountain LionsPuma concolor
- OcelotLeopardus pardalis
- AardwolvesProteles cristata
- ServalsLeptailurus serval
89% on the first try · 7% on the second · 82% named the group
Round 4 of 5 · Genus
the three: Panthera·intruder: Acinonyx
- LionPanthera leo
- LeopardPanthera pardus
- JaguarPanthera onca
- CheetahAcinonyx jubatus
22% on the first try · 30% on the second · 41% named the group · 48% fell here
Round 5 of 5 · Species
the three: Canis lupus·intruder: Canis latrans
- Southeastern coyoteCanis latrans frustor
- Eastern WolfCanis lupus lycaon or Canis lycaon
- Gray wolfCanis lupus
- Eastern WolfCanis lupus lycaon or Canis lycaon
38% on the first try · 16% on the second · 21% named the group

Challenge of October 22, 2026

Virginia Opossums

Red-Tailed Guenon

The skulls

The race

The odd ones out

Challenge of 28 de setembro

Lobo-guará

Lobo-guará

Challenge of October 22, 2026

Virginia Opossums

Red-Tailed Guenon

The skulls

The race

The odd ones out