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 · Friday

Challenge of October 23, 2026

Photos: Slow Cheetah Skeletons, Wikipedia

ClassicHarder than 81% of days

Celebes Crested Macaque

Macaca nigra

Mammalia/Primates/Cercopithecidae/Macaca/Macaca nigra

Players: 102
Median time: 12 sec

Solved on try

150%
235%
30%
40%
×15%

Most confused with

Bonnet MacaqueMacaca radiata12 of 102
Crab-eating MacaqueMacaca fascicularis7 of 102
Southern pig-tailed macaqueMacaca nemestrina6 of 102

Photos: Skullbase, Wikipedia

TaxonomyHarder than 78% of days

Tigers [Bali ssp.]

Panthera tigris sondaica

Where the community fell · players: 91

ClassMammalia88%
OrderCarnivora79%
FamilyFelidae68%
GenusPanthera65%
SpeciesPanthera tigris sondaica35%
30% fell here · Most picked wrong answer: Javan Leopards (20 of 59)

35% reached the species

Skull MatchEasier than 58% of days

The skulls

Ground CuscusPhalanger gymnotis
Alpine IbexCapra ibex
Black-Headed UakariCacajao melanocephalus
Big Brown BatEptesicus fuscus

Decoy namesRed Kangaroo, Matschie’S Tree-Kangaroo

Players: 78
Matched them all: 65%
Mistakes on average: 2.6

Most common swap

Ground Cuscus taken for Matschie’S Tree-Kangaroo×27
Ground Cuscus taken for Red Kangaroo×20
Alpine Ibex taken for Matschie’S Tree-Kangaroo×14

Speed RunHarder than 98% of days

The race

Players: 71
Finished: 55%
Median time: 44 sec
Median score: 4,651
Best score: 8,391

Skulls reached

1055%
97%
88%
78%
64%
54%
47%
31%
23%
11%

The skulls of the race · players: 71

1. Domestic Pig – Feral85% on the first try
2. Blue Duiker57% on the first try
3. Coypu51% on the first try
4. Emerald tree boa55% on the first try
5. Eurasian Lynxes55% on the first try
6. Black tamarin39% on the first try
7. Snow Leopard48% on the first try
8. South American Fur Seals52% on the first try
9. Siamang68% on the first try
10. Mazama Pocket Gopher85% on the first try

Toughest skull: South American Fur Seals · 48% fell here · median time 2.4 sec

Odd One OutHarder than 65% of days

The odd ones out

Players: 64
Won: 92%
Found on average: 3.6/5

Round 1 of 5 · Class
the three: Aves·intruder: Reptilia
- Red Eared SlidersTrachemys scripta elegans
- OstrichStruthio camelus
- Long-Eared OwlAsio otus
- Grey Crowned CraneBalearica regulorum
86% on the first try · 9% on the second · 84% named the group
Round 2 of 5 · Order
the three: Psittaciformes·intruder: Charadriiformes
- Mediterranean GullIchthyaetus melanocephalus
- Eastern RosellaPlatycercus eximius
- African Grey ParrotsPsittacus erithacus
- Red-and-green MacawAra chloropterus
66% on the first try · 27% on the second · 55% named the group
Round 3 of 5 · Family
the three: Soricidae·intruder: Talpidae
- Bicolored shrewCrocidura leucodon
- Star-Nosed MoleCondylura cristata
- Common shrewSorex araneus
- Northern Short-Tailed ShrewBlarina brevicauda
17% on the first try · 44% on the second · 20% named the group
Round 4 of 5 · Genus
the three: Canis·intruder: Vulpes
- Algerian wolfCanis anthus algirensis
- Golden JackalsCanis aureus
- CoyotesCanis latrans
- American Red FoxesVulpes vulpes fulva
9% on the first try · 20% on the second · 19% named the group · 70% fell here
Round 5 of 5 · Species
the three: Panthera tigris·intruder: Panthera pardus
- Tigers [Siberian ssp.]Panthera tigris altaica
- Tigers [Unknown ssp.]Panthera tigris
- Tigers [Unknown ssp.]Panthera tigris
- LeopardPanthera pardus
30% on the first try · 50% on the second · 30% named the group

Play today’s challenge Past challenges

Challenge of October 23, 2026

Photos: Slow Cheetah Skeletons, Wikipedia

ClassicHarder than 81% of days

Celebes Crested Macaque

Macaca nigra

Mammalia/Primates/Cercopithecidae/Macaca/Macaca nigra

Players: 102
Median time: 12 sec

Solved on try

150%
235%
30%
40%
×15%

Most confused with

Bonnet MacaqueMacaca radiata12 of 102
Crab-eating MacaqueMacaca fascicularis7 of 102
Southern pig-tailed macaqueMacaca nemestrina6 of 102

Photos: Skullbase, Wikipedia

TaxonomyHarder than 78% of days

Tigers [Bali ssp.]

Panthera tigris sondaica

Where the community fell · players: 91

ClassMammalia88%
OrderCarnivora79%
FamilyFelidae68%
GenusPanthera65%
SpeciesPanthera tigris sondaica35%
30% fell here · Most picked wrong answer: Javan Leopards (20 of 59)

35% reached the species

Skull MatchEasier than 58% of days

The skulls

Ground CuscusPhalanger gymnotis
Alpine IbexCapra ibex
Black-Headed UakariCacajao melanocephalus
Big Brown BatEptesicus fuscus

Decoy namesRed Kangaroo, Matschie’S Tree-Kangaroo

Players: 78
Matched them all: 65%
Mistakes on average: 2.6

Most common swap

Ground Cuscus taken for Matschie’S Tree-Kangaroo×27
Ground Cuscus taken for Red Kangaroo×20
Alpine Ibex taken for Matschie’S Tree-Kangaroo×14

Speed RunHarder than 98% of days

The race

Players: 71
Finished: 55%
Median time: 44 sec
Median score: 4,651
Best score: 8,391

Skulls reached

1055%
97%
88%
78%
64%
54%
47%
31%
23%
11%

The skulls of the race · players: 71

1. Domestic Pig – Feral85% on the first try
2. Blue Duiker57% on the first try
3. Coypu51% on the first try
4. Emerald tree boa55% on the first try
5. Eurasian Lynxes55% on the first try
6. Black tamarin39% on the first try
7. Snow Leopard48% on the first try
8. South American Fur Seals52% on the first try
9. Siamang68% on the first try
10. Mazama Pocket Gopher85% on the first try

Toughest skull: South American Fur Seals · 48% fell here · median time 2.4 sec

Odd One OutHarder than 65% of days

The odd ones out

Players: 64
Won: 92%
Found on average: 3.6/5

Round 1 of 5 · Class
the three: Aves·intruder: Reptilia
- Red Eared SlidersTrachemys scripta elegans
- OstrichStruthio camelus
- Long-Eared OwlAsio otus
- Grey Crowned CraneBalearica regulorum
86% on the first try · 9% on the second · 84% named the group
Round 2 of 5 · Order
the three: Psittaciformes·intruder: Charadriiformes
- Mediterranean GullIchthyaetus melanocephalus
- Eastern RosellaPlatycercus eximius
- African Grey ParrotsPsittacus erithacus
- Red-and-green MacawAra chloropterus
66% on the first try · 27% on the second · 55% named the group
Round 3 of 5 · Family
the three: Soricidae·intruder: Talpidae
- Bicolored shrewCrocidura leucodon
- Star-Nosed MoleCondylura cristata
- Common shrewSorex araneus
- Northern Short-Tailed ShrewBlarina brevicauda
17% on the first try · 44% on the second · 20% named the group
Round 4 of 5 · Genus
the three: Canis·intruder: Vulpes
- Algerian wolfCanis anthus algirensis
- Golden JackalsCanis aureus
- CoyotesCanis latrans
- American Red FoxesVulpes vulpes fulva
9% on the first try · 20% on the second · 19% named the group · 70% fell here
Round 5 of 5 · Species
the three: Panthera tigris·intruder: Panthera pardus
- Tigers [Siberian ssp.]Panthera tigris altaica
- Tigers [Unknown ssp.]Panthera tigris
- Tigers [Unknown ssp.]Panthera tigris
- LeopardPanthera pardus
30% on the first try · 50% on the second · 30% named the group

Challenge of October 23, 2026

Celebes Crested Macaque

Tigers [Bali ssp.]

The skulls

The race

The odd ones out

Challenge of 28 de setembro

Lobo-guará

Lobo-guará

Challenge of October 23, 2026

Celebes Crested Macaque

Tigers [Bali ssp.]

The skulls

The race

The odd ones out