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 6, 2026

Photos: Skull Index, Wikipedia

ClassicHarder than 70% of days

Large Indian Civet

Viverra zibetha

Mammalia/Carnivora/Viverridae/Viverra/Viverra zibetha

Players: 36
Median time: 5 sec

Solved on try

150%
239%
30%
40%
×11%

Most confused with

BinturongsArctictis binturong3 of 36
Common genetGenetta genetta3 of 36
Masked Palm CivetPaguma larvata3 of 36

Photos: Skull Index, Wikipedia

TaxonomyEasier than 69% of days

Uracoan Rattlesnake

Crotalus vegrandis

Where the community fell · players: 34

ClassReptilia97%
OrderSquamata82%
15% fell here · Most picked wrong answer: Accipitriformes (2 of 33)
FamilyViperidae82%
GenusCrotalus68%
SpeciesCrotalus vegrandis62%

62% reached the species

Skull MatchEasier than 51% of days

The skulls

Hammer-Headed BatHypsignathus monstrosus
Swamp RabbitSylvilagus aquaticus
Diadem Leaf-Nosed BatHipposideros diadema
Veldkamp's Dwarf Epauletted Fruit BatNanonycteris veldkampii

Decoy namesKuhl's pipistrelle, Big Brown Bat

Players: 33
Matched them all: 67%
Mistakes on average: 2.7

Most common swap

Diadem Leaf-Nosed Bat taken for Big Brown Bat×18
Diadem Leaf-Nosed Bat taken for Kuhl's pipistrelle×14
Veldkamp's Dwarf Epauletted Fruit Bat taken for Kuhl's pipistrelle×11

Speed RunHarder than 96% of days

The race

Players: 33
Finished: 70%
Median time: 39 sec
Median score: 5,386
Best score: 7,409

Skulls reached

1070%
93%
89%
76%
56%
46%

The skulls of the race · players: 33

1. European Badgers67% on the first try
2. Humboldt’S Squirrel Monkey79% on the first try
3. Indian Leopards82% on the first try
4. Black tamarin61% on the first try
5. Common Brown Lemur55% on the first try
6. Nile Crocodiles48% on the first try
7. Black rat34% on the first try
8. Zebu67% on the first try
9. Asian Small-Clawed Otters79% on the first try
10. Southeastern coyote43% on the first try

Toughest skull: Southeastern coyote · 57% fell here · median time 2 sec

Odd One OutHarder than 74% of days

The odd ones out

Players: 31
Won: 77%
Found on average: 3.4/5

Round 1 of 5 · Class
the three: Mammalia·intruder: Aves
- Nine-Banded ArmadilloDasypus novemcinctus
- Short-beaked EchidnasTachyglossus aculeatus
- Carrion crowCorvus corone
- AardvarksOrycteropus afer
90% on the first try · 6% on the second · 81% named the group
Round 2 of 5 · Order
the three: Accipitriformes·intruder: Strigiformes
- Lappet Faced VulturesTorgos tracheliotos
- Golden eagleAquila chrysaetos
- Tawny OwlStrix aluco
- Common BuzzardsButeo buteo
71% on the first try · 29% on the second · 35% named the group
Round 3 of 5 · Family
the three: Sciuridae·intruder: Cricetidae
- Golden-Mantled Ground SquirrelCallospermophilus lateralis
- Eastern WoodratNeotoma floridana
- Forest Giant SquirrelProtoxerus stangeri
- Harris’ Antelope SquirrelAmmospermophilus harrisii
23% on the first try · 23% on the second · 26% named the group
Round 4 of 5 · Genus
the three: Panthera·intruder: Acinonyx
- Tigers [Siberian ssp.]Panthera tigris altaica
- Javan LeopardsPanthera pardus melas
- CheetahAcinonyx jubatus
- JaguarPanthera onca
16% on the first try · 19% on the second · 35% named the group · 65% fell here
Round 5 of 5 · Species
the three: Camelus bactrianus·intruder: Camelus dromedarius
- Dromedary CamelsCamelus dromedarius
- Bactrian CamelsCamelus bactrianus
- Bactrian CamelsCamelus bactrianus
- Bactrian CamelsCamelus bactrianus
35% on the first try · 23% on the second · 13% named the group

Play today’s challenge Past challenges

Challenge of October 6, 2026

Photos: Skull Index, Wikipedia

ClassicHarder than 70% of days

Large Indian Civet

Viverra zibetha

Mammalia/Carnivora/Viverridae/Viverra/Viverra zibetha

Players: 36
Median time: 5 sec

Solved on try

150%
239%
30%
40%
×11%

Most confused with

BinturongsArctictis binturong3 of 36
Common genetGenetta genetta3 of 36
Masked Palm CivetPaguma larvata3 of 36

Photos: Skull Index, Wikipedia

TaxonomyEasier than 69% of days

Uracoan Rattlesnake

Crotalus vegrandis

Where the community fell · players: 34

ClassReptilia97%
OrderSquamata82%
15% fell here · Most picked wrong answer: Accipitriformes (2 of 33)
FamilyViperidae82%
GenusCrotalus68%
SpeciesCrotalus vegrandis62%

62% reached the species

Skull MatchEasier than 51% of days

The skulls

Hammer-Headed BatHypsignathus monstrosus
Swamp RabbitSylvilagus aquaticus
Diadem Leaf-Nosed BatHipposideros diadema
Veldkamp's Dwarf Epauletted Fruit BatNanonycteris veldkampii

Decoy namesKuhl's pipistrelle, Big Brown Bat

Players: 33
Matched them all: 67%
Mistakes on average: 2.7

Most common swap

Diadem Leaf-Nosed Bat taken for Big Brown Bat×18
Diadem Leaf-Nosed Bat taken for Kuhl's pipistrelle×14
Veldkamp's Dwarf Epauletted Fruit Bat taken for Kuhl's pipistrelle×11

Speed RunHarder than 96% of days

The race

Players: 33
Finished: 70%
Median time: 39 sec
Median score: 5,386
Best score: 7,409

Skulls reached

1070%
93%
89%
76%
56%
46%

The skulls of the race · players: 33

1. European Badgers67% on the first try
2. Humboldt’S Squirrel Monkey79% on the first try
3. Indian Leopards82% on the first try
4. Black tamarin61% on the first try
5. Common Brown Lemur55% on the first try
6. Nile Crocodiles48% on the first try
7. Black rat34% on the first try
8. Zebu67% on the first try
9. Asian Small-Clawed Otters79% on the first try
10. Southeastern coyote43% on the first try

Toughest skull: Southeastern coyote · 57% fell here · median time 2 sec

Odd One OutHarder than 74% of days

The odd ones out

Players: 31
Won: 77%
Found on average: 3.4/5

Round 1 of 5 · Class
the three: Mammalia·intruder: Aves
- Nine-Banded ArmadilloDasypus novemcinctus
- Short-beaked EchidnasTachyglossus aculeatus
- Carrion crowCorvus corone
- AardvarksOrycteropus afer
90% on the first try · 6% on the second · 81% named the group
Round 2 of 5 · Order
the three: Accipitriformes·intruder: Strigiformes
- Lappet Faced VulturesTorgos tracheliotos
- Golden eagleAquila chrysaetos
- Tawny OwlStrix aluco
- Common BuzzardsButeo buteo
71% on the first try · 29% on the second · 35% named the group
Round 3 of 5 · Family
the three: Sciuridae·intruder: Cricetidae
- Golden-Mantled Ground SquirrelCallospermophilus lateralis
- Eastern WoodratNeotoma floridana
- Forest Giant SquirrelProtoxerus stangeri
- Harris’ Antelope SquirrelAmmospermophilus harrisii
23% on the first try · 23% on the second · 26% named the group
Round 4 of 5 · Genus
the three: Panthera·intruder: Acinonyx
- Tigers [Siberian ssp.]Panthera tigris altaica
- Javan LeopardsPanthera pardus melas
- CheetahAcinonyx jubatus
- JaguarPanthera onca
16% on the first try · 19% on the second · 35% named the group · 65% fell here
Round 5 of 5 · Species
the three: Camelus bactrianus·intruder: Camelus dromedarius
- Dromedary CamelsCamelus dromedarius
- Bactrian CamelsCamelus bactrianus
- Bactrian CamelsCamelus bactrianus
- Bactrian CamelsCamelus bactrianus
35% on the first try · 23% on the second · 13% named the group

Challenge of October 6, 2026

Large Indian Civet

Uracoan Rattlesnake

The skulls

The race

The odd ones out

Challenge of 28 de setembro

Lobo-guará

Lobo-guará

Challenge of October 6, 2026

Large Indian Civet

Uracoan Rattlesnake

The skulls

The race

The odd ones out