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 13, 2026

Photos: Slow Cheetah Skeletons, Wikipedia

ClassicHarder than 82% of days

Diana Monkey

Cercopithecus diana

Mammalia/Primates/Cercopithecidae/Cercopithecus/Cercopithecus diana

Players: 61
Median time: 7 sec

Solved on try

154%
230%
30%
40%
×16%

Most confused with

De Brazza’S MonkeyCercopithecus neglectus8 of 61
Crowned GuenonCercopithecus pogonias6 of 61
Bald UakariCacajao calvus4 of 61

Photos: Skullbase, Wikipedia

TaxonomyHarder than 65% of days

Red-backed shrike

Lanius collurio

Where the community fell · players: 61

ClassAves100%
OrderPasseriformes90%
FamilyLaniidae56%
34% fell here · Most picked wrong answer: Ciconiidae (5 of 55)
GenusLanius52%
SpeciesLanius collurio41%

41% reached the species

Skull MatchHarder than 65% of days

The skulls

Irish stoatMustela erminea hibernica
Greater Hog BadgersArctonyx collaris
Middle Russian stoatMustela erminea aestiva
TayraEira barbara

Decoy namesSea Otter, Asian Small-Clawed Otters

Players: 58
Matched them all: 55%
Mistakes on average: 3.1

Most common swap

Tayra taken for Asian Small-Clawed Otters×20
Tayra taken for Sea Otter×19
Irish stoat taken for Middle Russian stoat×15

Speed RunHarder than 95% of days

The race

Players: 55
Finished: 69%
Median time: 39 sec
Median score: 5,331
Best score: 6,975

Skulls reached

1069%
99%
85%
74%
67%
52%
42%
12%

The skulls of the race · players: 55

1. Channel-Billed Toucan94% on the first try
2. Nine-Banded Armadillo76% on the first try
3. Tigers [Siberian ssp.]43% on the first try
4. Siamang57% on the first try
5. Bonnet Macaque53% on the first try
6. Crab-Eating Raccoon60% on the first try
7. Edible dormouse40% on the first try
8. Snow Leopard67% on the first try
9. Dingo58% on the first try
10. Stoats74% on the first try

Toughest skull: Dingo · 42% fell here · median time 2 sec

Odd One OutEasier than 96% of days

The odd ones out

Players: 52
Won: 100%
Found on average: 4.2/5

Round 1 of 5 · Class
the three: Aves·intruder: Mammalia
- Inca JaysCyanocorax yncas
- Common Wood PigeonsColumba palumbus
- European hareLepus europaeus
- RazorbillsAlca torda
98% on the first try · 2% on the second · 100% named the group
Round 2 of 5 · Order
the three: Carnivora·intruder: Diprotodontia
- South American coatiNasua nasua
- Striped HyenasHyaena hyaena
- African CivetCivettictis civetta
- Tammar WallabiesNotamacropus eugenii
83% on the first try · 13% on the second · 92% named the group
Round 3 of 5 · Family
the three: Felidae·intruder: Viverridae
- Clouded Leopard [Mainland]Neofelis nebulosa
- ServalsLeptailurus serval
- Canada lynxLynx canadensis
- Small Indian civetViverricula indica
83% on the first try · 8% on the second · 88% named the group
Round 4 of 5 · Genus
the three: Panthera·intruder: Puma
- Snow LeopardPanthera uncia
- JaguarPanthera onca
- LionPanthera leo
- Mountain LionsPuma concolor
33% on the first try · 27% on the second · 35% named the group · 40% fell here
Round 5 of 5 · Species
the three: Ursus arctos·intruder: Ursus americanus
- Brown BearsUrsus arctos
- Brown BearsUrsus arctos
- Brown BearsUrsus arctos
- American Black BearsUrsus americanus
44% on the first try · 25% on the second · 23% named the group

Play today’s challenge Past challenges

Challenge of October 13, 2026

Photos: Slow Cheetah Skeletons, Wikipedia

ClassicHarder than 82% of days

Diana Monkey

Cercopithecus diana

Mammalia/Primates/Cercopithecidae/Cercopithecus/Cercopithecus diana

Players: 61
Median time: 7 sec

Solved on try

154%
230%
30%
40%
×16%

Most confused with

De Brazza’S MonkeyCercopithecus neglectus8 of 61
Crowned GuenonCercopithecus pogonias6 of 61
Bald UakariCacajao calvus4 of 61

Photos: Skullbase, Wikipedia

TaxonomyHarder than 65% of days

Red-backed shrike

Lanius collurio

Where the community fell · players: 61

ClassAves100%
OrderPasseriformes90%
FamilyLaniidae56%
34% fell here · Most picked wrong answer: Ciconiidae (5 of 55)
GenusLanius52%
SpeciesLanius collurio41%

41% reached the species

Skull MatchHarder than 65% of days

The skulls

Irish stoatMustela erminea hibernica
Greater Hog BadgersArctonyx collaris
Middle Russian stoatMustela erminea aestiva
TayraEira barbara

Decoy namesSea Otter, Asian Small-Clawed Otters

Players: 58
Matched them all: 55%
Mistakes on average: 3.1

Most common swap

Tayra taken for Asian Small-Clawed Otters×20
Tayra taken for Sea Otter×19
Irish stoat taken for Middle Russian stoat×15

Speed RunHarder than 95% of days

The race

Players: 55
Finished: 69%
Median time: 39 sec
Median score: 5,331
Best score: 6,975

Skulls reached

1069%
99%
85%
74%
67%
52%
42%
12%

The skulls of the race · players: 55

1. Channel-Billed Toucan94% on the first try
2. Nine-Banded Armadillo76% on the first try
3. Tigers [Siberian ssp.]43% on the first try
4. Siamang57% on the first try
5. Bonnet Macaque53% on the first try
6. Crab-Eating Raccoon60% on the first try
7. Edible dormouse40% on the first try
8. Snow Leopard67% on the first try
9. Dingo58% on the first try
10. Stoats74% on the first try

Toughest skull: Dingo · 42% fell here · median time 2 sec

Odd One OutEasier than 96% of days

The odd ones out

Players: 52
Won: 100%
Found on average: 4.2/5

Round 1 of 5 · Class
the three: Aves·intruder: Mammalia
- Inca JaysCyanocorax yncas
- Common Wood PigeonsColumba palumbus
- European hareLepus europaeus
- RazorbillsAlca torda
98% on the first try · 2% on the second · 100% named the group
Round 2 of 5 · Order
the three: Carnivora·intruder: Diprotodontia
- South American coatiNasua nasua
- Striped HyenasHyaena hyaena
- African CivetCivettictis civetta
- Tammar WallabiesNotamacropus eugenii
83% on the first try · 13% on the second · 92% named the group
Round 3 of 5 · Family
the three: Felidae·intruder: Viverridae
- Clouded Leopard [Mainland]Neofelis nebulosa
- ServalsLeptailurus serval
- Canada lynxLynx canadensis
- Small Indian civetViverricula indica
83% on the first try · 8% on the second · 88% named the group
Round 4 of 5 · Genus
the three: Panthera·intruder: Puma
- Snow LeopardPanthera uncia
- JaguarPanthera onca
- LionPanthera leo
- Mountain LionsPuma concolor
33% on the first try · 27% on the second · 35% named the group · 40% fell here
Round 5 of 5 · Species
the three: Ursus arctos·intruder: Ursus americanus
- Brown BearsUrsus arctos
- Brown BearsUrsus arctos
- Brown BearsUrsus arctos
- American Black BearsUrsus americanus
44% on the first try · 25% on the second · 23% named the group

Challenge of October 13, 2026

Diana Monkey

Red-backed shrike

The skulls

The race

The odd ones out

Challenge of 28 de setembro

Lobo-guará

Lobo-guará

Challenge of October 13, 2026

Diana Monkey

Red-backed shrike

The skulls

The race

The odd ones out