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 · Sunday

Challenge of October 11, 2026

Photos: Skull Index, Skullbase, Slow Cheetah Skeletons, Wikipedia

ClassicHarder than 79% of days

Muskrats

Ondatra zibethicus

Mammalia/Rodentia/Cricetidae/Ondatra/Ondatra zibethicus

Players: 112
Median time: 16 sec

Solved on try

154%
232%
30%
40%
×14%

Most confused with

Eastern WoodratNeotoma floridana9 of 112
Abert’S SquirrelSciurus aberti6 of 112
European water voleArvicola amphibius5 of 112

Photos: Skullbase, Wikipedia

TaxonomyHarder than 63% of days

Bush dog

Speothos venaticus

Where the community fell · players: 103

ClassMammalia97%
OrderCarnivora92%
FamilyCanidae83%
GenusSpeothos49%
35% fell here · Most picked wrong answer: Genetta (3 of 86)
SpeciesSpeothos venaticus43%

43% reached the species

Skull MatchHarder than 74% of days

The skulls

Crab-Eating MongooseUrva urva
Tigers [Bengal ssp.]Panthera tigris tigris
White-tailed mongooseIchneumia albicauda
Egyptian mongooseHerpestes ichneumon

Decoy namesBinturongs, Arctic Wolves

Players: 88
Matched them all: 48%
Mistakes on average: 3.3

Most common swap

Tigers [Bengal ssp.] taken for Binturongs×30
Egyptian mongoose taken for Crab-Eating Mongoose×29
White-tailed mongoose taken for Crab-Eating Mongoose×25

Speed RunHarder than 99% of days

The race

Players: 72
Finished: 51%
Median time: 49 sec
Median score: 4,214
Best score: 7,165

Skulls reached

1051%
919%
86%
77%
64%
54%
43%
34%
11%

The skulls of the race · players: 72

1. Irish stoat56% on the first try
2. Giant Anteater94% on the first try
3. Smooth Newt79% on the first try
4. Grey Fox62% on the first try
5. Lowland Paca30% on the first try
6. Brown rat56% on the first try
7. Tigers [Bali ssp.]48% on the first try
8. Potto64% on the first try
9. Bald Uakari45% on the first try
10. Yellow-Bellied Marmot49% on the first try

Toughest skull: Bald Uakari · 55% fell here · median time 2.1 sec

Odd One OutEasier than 61% of days

The odd ones out

Players: 54
Won: 91%
Found on average: 3.8/5

Round 1 of 5 · Class
the three: Aves·intruder: Reptilia
- OstrichStruthio camelus
- Northern GannetMorus bassanus
- Loggerhead sea turtleCaretta caretta
- Grey HeronsArdea cinerea
80% on the first try · 15% on the second · 94% named the group
Round 2 of 5 · Order
the three: Accipitriformes·intruder: Psittaciformes
- Lappet Faced VulturesTorgos tracheliotos
- White-Tailed EaglesHaliaeetus albicilla
- Common BuzzardsButeo buteo
- Blue-and-gold MacawAra ararauna
76% on the first try · 11% on the second · 39% named the group
Round 3 of 5 · Family
the three: Cercopithecidae·intruder: Atelidae
- White-Fronted SuriliPresbytis frontata
- Proboscis MonkeyNasalis larvatus
- DrillMandrillus leucophaeus
- Mantled HowlerAlouatta palliata
28% on the first try · 26% on the second · 24% named the group · 46% fell here
Round 4 of 5 · Genus
the three: Papio·intruder: Macaca
- Rhesus MacaqueMacaca mulatta
- Olive Baboon/Yellow Baboon HybridPapio anubis x Papio cynocephalus
- Chacma BaboonPapio ursinus
- Guinea baboonPapio papio
61% on the first try · 17% on the second · 17% named the group
Round 5 of 5 · Species
the three: Panthera pardus·intruder: Panthera onca
- JaguarPanthera onca
- African LeopardPanthera pardus pardus
- LeopardPanthera pardus
- African LeopardPanthera pardus pardus
35% on the first try · 28% on the second · 20% named the group

Play today’s challenge Past challenges

Challenge of October 11, 2026

Photos: Skull Index, Skullbase, Slow Cheetah Skeletons, Wikipedia

ClassicHarder than 79% of days

Muskrats

Ondatra zibethicus

Mammalia/Rodentia/Cricetidae/Ondatra/Ondatra zibethicus

Players: 112
Median time: 16 sec

Solved on try

154%
232%
30%
40%
×14%

Most confused with

Eastern WoodratNeotoma floridana9 of 112
Abert’S SquirrelSciurus aberti6 of 112
European water voleArvicola amphibius5 of 112

Photos: Skullbase, Wikipedia

TaxonomyHarder than 63% of days

Bush dog

Speothos venaticus

Where the community fell · players: 103

ClassMammalia97%
OrderCarnivora92%
FamilyCanidae83%
GenusSpeothos49%
35% fell here · Most picked wrong answer: Genetta (3 of 86)
SpeciesSpeothos venaticus43%

43% reached the species

Skull MatchHarder than 74% of days

The skulls

Crab-Eating MongooseUrva urva
Tigers [Bengal ssp.]Panthera tigris tigris
White-tailed mongooseIchneumia albicauda
Egyptian mongooseHerpestes ichneumon

Decoy namesBinturongs, Arctic Wolves

Players: 88
Matched them all: 48%
Mistakes on average: 3.3

Most common swap

Tigers [Bengal ssp.] taken for Binturongs×30
Egyptian mongoose taken for Crab-Eating Mongoose×29
White-tailed mongoose taken for Crab-Eating Mongoose×25

Speed RunHarder than 99% of days

The race

Players: 72
Finished: 51%
Median time: 49 sec
Median score: 4,214
Best score: 7,165

Skulls reached

1051%
919%
86%
77%
64%
54%
43%
34%
11%

The skulls of the race · players: 72

1. Irish stoat56% on the first try
2. Giant Anteater94% on the first try
3. Smooth Newt79% on the first try
4. Grey Fox62% on the first try
5. Lowland Paca30% on the first try
6. Brown rat56% on the first try
7. Tigers [Bali ssp.]48% on the first try
8. Potto64% on the first try
9. Bald Uakari45% on the first try
10. Yellow-Bellied Marmot49% on the first try

Toughest skull: Bald Uakari · 55% fell here · median time 2.1 sec

Odd One OutEasier than 61% of days

The odd ones out

Players: 54
Won: 91%
Found on average: 3.8/5

Round 1 of 5 · Class
the three: Aves·intruder: Reptilia
- OstrichStruthio camelus
- Northern GannetMorus bassanus
- Loggerhead sea turtleCaretta caretta
- Grey HeronsArdea cinerea
80% on the first try · 15% on the second · 94% named the group
Round 2 of 5 · Order
the three: Accipitriformes·intruder: Psittaciformes
- Lappet Faced VulturesTorgos tracheliotos
- White-Tailed EaglesHaliaeetus albicilla
- Common BuzzardsButeo buteo
- Blue-and-gold MacawAra ararauna
76% on the first try · 11% on the second · 39% named the group
Round 3 of 5 · Family
the three: Cercopithecidae·intruder: Atelidae
- White-Fronted SuriliPresbytis frontata
- Proboscis MonkeyNasalis larvatus
- DrillMandrillus leucophaeus
- Mantled HowlerAlouatta palliata
28% on the first try · 26% on the second · 24% named the group · 46% fell here
Round 4 of 5 · Genus
the three: Papio·intruder: Macaca
- Rhesus MacaqueMacaca mulatta
- Olive Baboon/Yellow Baboon HybridPapio anubis x Papio cynocephalus
- Chacma BaboonPapio ursinus
- Guinea baboonPapio papio
61% on the first try · 17% on the second · 17% named the group
Round 5 of 5 · Species
the three: Panthera pardus·intruder: Panthera onca
- JaguarPanthera onca
- African LeopardPanthera pardus pardus
- LeopardPanthera pardus
- African LeopardPanthera pardus pardus
35% on the first try · 28% on the second · 20% named the group

Challenge of October 11, 2026

Muskrats

Bush dog

The skulls

The race

The odd ones out

Challenge of 28 de setembro

Lobo-guará

Lobo-guará

Challenge of October 11, 2026

Muskrats

Bush dog

The skulls

The race

The odd ones out