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 · Tuesday

Challenge of October 27, 2026

Photos: Skullbase, Skull Index, Wikipedia

ClassicHarder than 93% of days

Red Deer

Cervus elaphus

Mammalia/Cetartiodactyla/Cervidae/Cervus/Cervus elaphus

Players: 56
Median time: 5 sec

Solved on try

150%
227%
30%
40%
×23%

Most confused with

ElkCervus canadensis13 of 56
Sika deerCervus nippon8 of 56
Blue WildebeestConnochaetes taurinus2 of 56

Photos: Skull Index, Wikipedia

TaxonomyHarder than 47% of days

Golden Jackals

Canis aureus

Where the community fell · players: 50

ClassMammalia100%
OrderCarnivora100%
FamilyCanidae100%
GenusCanis100%
SpeciesCanis aureus50%
50% fell here · Most picked wrong answer: Dingos (12 of 50)

50% reached the species

Skull MatchEasier than 95% of days

The skulls

Common Pike CongersMuraenesox bagio
Mbu PufferfishesTetraodon mbu
PacaranaDinomys branickii
Giant morayGymnothorax javanicus

Decoy namesCommon Blowfishes, Common bream

Players: 47
Matched them all: 89%
Mistakes on average: 1.2

Most common swap

Mbu Pufferfishes taken for Common Blowfishes×20
Common Pike Congers taken for Giant moray×5
Giant moray taken for Common Blowfishes×4

Speed RunEasier than 96% of days

The race

Players: 47
Finished: 74%
Median time: 31 sec
Median score: 7,446
Best score: 9,244

Skulls reached

1074%
94%
84%
74%
66%
52%
42%
22%

The skulls of the race · players: 47

1. Fishing Cat68% on the first try
2. Mandrill74% on the first try
3. Western jackdaw72% on the first try
4. Pallas Cats67% on the first try
5. Brown Bears71% on the first try
6. Coypu57% on the first try
7. South American Fur Seals93% on the first try
8. South American coati74% on the first try
9. Emerald tree boa89% on the first try
10. Ostrich86% on the first try

Toughest skull: South American coati · 26% fell here · median time 2.1 sec

Odd One OutHarder than 92% of days

The odd ones out

Players: 41
Won: 68%
Found on average: 2.9/5

Round 1 of 5 · Class
the three: Mammalia·intruder: Aves
- GemsbokOryx gazella
- Eurasian reed warblerAcrocephalus scirpaceus
- Virginia OpossumsDidelphis virginiana
- GorillaGorilla gorilla
90% on the first try · 7% on the second · 98% named the group
Round 2 of 5 · Order
the three: Rodentia·intruder: Lagomorpha
- African Savanna HareLepus victoriae
- Merriam’S Kangaroo RatDipodomys ordii
- GroundhogMarmota monax
- PacaranaDinomys branickii
24% on the first try · 22% on the second · 44% named the group
Round 3 of 5 · Family
the three: Muridae·intruder: Sciuridae
- Brown ratRattus norvegicus
- Wood mouseApodemus sylvaticus
- Black ratRattus rattus
- Piute Ground SquirrelUrocitellus mollis
22% on the first try · 22% on the second · 12% named the group · 56% fell here
Round 4 of 5 · Genus
the three: Papio·intruder: Macaca
- Bonnet MacaqueMacaca radiata
- Yellow BaboonPapio cynocephalus
- Kinda BaboonPapio kindae
- Chacma BaboonPapio ursinus
22% on the first try · 37% on the second · 22% named the group
Round 5 of 5 · Species
the three: Castor canadensis·intruder: Castor fiber
- North American BeaversCastor canadensis
- North American BeaversCastor canadensis
- North American BeaversCastor canadensis
- Eurasian BeaversCastor fiber
15% on the first try · 32% on the second · 20% named the group

Play today’s challenge Past challenges

Challenge of October 27, 2026

Photos: Skullbase, Skull Index, Wikipedia

ClassicHarder than 93% of days

Red Deer

Cervus elaphus

Mammalia/Cetartiodactyla/Cervidae/Cervus/Cervus elaphus

Players: 56
Median time: 5 sec

Solved on try

150%
227%
30%
40%
×23%

Most confused with

ElkCervus canadensis13 of 56
Sika deerCervus nippon8 of 56
Blue WildebeestConnochaetes taurinus2 of 56

Photos: Skull Index, Wikipedia

TaxonomyHarder than 47% of days

Golden Jackals

Canis aureus

Where the community fell · players: 50

ClassMammalia100%
OrderCarnivora100%
FamilyCanidae100%
GenusCanis100%
SpeciesCanis aureus50%
50% fell here · Most picked wrong answer: Dingos (12 of 50)

50% reached the species

Skull MatchEasier than 95% of days

The skulls

Common Pike CongersMuraenesox bagio
Mbu PufferfishesTetraodon mbu
PacaranaDinomys branickii
Giant morayGymnothorax javanicus

Decoy namesCommon Blowfishes, Common bream

Players: 47
Matched them all: 89%
Mistakes on average: 1.2

Most common swap

Mbu Pufferfishes taken for Common Blowfishes×20
Common Pike Congers taken for Giant moray×5
Giant moray taken for Common Blowfishes×4

Speed RunEasier than 96% of days

The race

Players: 47
Finished: 74%
Median time: 31 sec
Median score: 7,446
Best score: 9,244

Skulls reached

1074%
94%
84%
74%
66%
52%
42%
22%

The skulls of the race · players: 47

1. Fishing Cat68% on the first try
2. Mandrill74% on the first try
3. Western jackdaw72% on the first try
4. Pallas Cats67% on the first try
5. Brown Bears71% on the first try
6. Coypu57% on the first try
7. South American Fur Seals93% on the first try
8. South American coati74% on the first try
9. Emerald tree boa89% on the first try
10. Ostrich86% on the first try

Toughest skull: South American coati · 26% fell here · median time 2.1 sec

Odd One OutHarder than 92% of days

The odd ones out

Players: 41
Won: 68%
Found on average: 2.9/5

Round 1 of 5 · Class
the three: Mammalia·intruder: Aves
- GemsbokOryx gazella
- Eurasian reed warblerAcrocephalus scirpaceus
- Virginia OpossumsDidelphis virginiana
- GorillaGorilla gorilla
90% on the first try · 7% on the second · 98% named the group
Round 2 of 5 · Order
the three: Rodentia·intruder: Lagomorpha
- African Savanna HareLepus victoriae
- Merriam’S Kangaroo RatDipodomys ordii
- GroundhogMarmota monax
- PacaranaDinomys branickii
24% on the first try · 22% on the second · 44% named the group
Round 3 of 5 · Family
the three: Muridae·intruder: Sciuridae
- Brown ratRattus norvegicus
- Wood mouseApodemus sylvaticus
- Black ratRattus rattus
- Piute Ground SquirrelUrocitellus mollis
22% on the first try · 22% on the second · 12% named the group · 56% fell here
Round 4 of 5 · Genus
the three: Papio·intruder: Macaca
- Bonnet MacaqueMacaca radiata
- Yellow BaboonPapio cynocephalus
- Kinda BaboonPapio kindae
- Chacma BaboonPapio ursinus
22% on the first try · 37% on the second · 22% named the group
Round 5 of 5 · Species
the three: Castor canadensis·intruder: Castor fiber
- North American BeaversCastor canadensis
- North American BeaversCastor canadensis
- North American BeaversCastor canadensis
- Eurasian BeaversCastor fiber
15% on the first try · 32% on the second · 20% named the group

Challenge of October 27, 2026

Red Deer

Golden Jackals

The skulls

The race

The odd ones out

Challenge of 28 de setembro

Lobo-guará

Lobo-guará

Challenge of October 27, 2026

Red Deer

Golden Jackals

The skulls

The race

The odd ones out