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 · Saturday

Challenge of October 10, 2026

Photos: Slow Cheetah Skeletons, Wikipedia

ClassicHarder than 95% of days

Golden-Mantled Ground Squirrel

Callospermophilus lateralis

Mammalia/Rodentia/Sciuridae/Callospermophilus/Callospermophilus lateralis

Players: 31
Median time: 7 sec

Solved on try

142%
235%
30%
40%
×23%

Most confused with

Arctic Ground SquirrelUrocitellus parryii3 of 31
European hamsterCricetus cricetus3 of 31
Franklin’S Ground SquirrelPoliocitellus franklinii3 of 31

Photos: Skull Index, Skullbase, Wikipedia

TaxonomyEasier than 75% of days

African Lions (Southern/Eastern Clade)

Panthera leo melanochaita

Where the community fell · players: 29

ClassMammalia100%
OrderCarnivora100%
FamilyFelidae93%
GenusPanthera93%
SpeciesPanthera leo melanochaita66%
28% fell here · Most picked wrong answer: Tigers [Bengal ssp.] (5 of 27)

66% reached the species

Skull MatchEasier than 65% of days

The skulls

American BisonBison bison
Chinese Water DeerHydropotes inermis
Bactrian CamelsCamelus bactrianus
MooseAlces alces

Decoy namesRoe Deer, Indian Muntjac

Players: 28
Matched them all: 75%
Mistakes on average: 2.4

Most common swap

American Bison taken for Roe Deer×19
American Bison taken for Indian Muntjac×15
Chinese Water Deer taken for Indian Muntjac×9

Speed RunEasier than 52% of days

The race

Players: 28
Finished: 89%
Median time: 32 sec
Median score: 5,893
Best score: 7,722

Skulls reached

1089%
97%
54%

The skulls of the race · players: 28

1. Mule Deer86% on the first try
2. Dingos86% on the first try
3. Giant moray71% on the first try
4. Common Blowfishes50% on the first try
5. Common Pike Congers86% on the first try
6. black-footed albatross52% on the first try
7. Egyptian mongoose74% on the first try
8. Black-Backed Jackal70% on the first try
9. Atlantic Yellow-nosed Albatross74% on the first try
10. Banded Mongooses60% on the first try

Toughest skull: Banded Mongooses · 40% fell here · median time 2.4 sec

Odd One OutEasier than 57% of days

The odd ones out

Players: 27
Won: 89%
Found on average: 3.6/5

Round 1 of 5 · Class
the three: Reptilia·intruder: Mammalia
- American AlligatorAlligator mississippiensis
- Russian tortoiseAgrionemys horsfieldii
- Ball PythonsPython regius
- Great Roundleaf BatHipposideros armiger
89% on the first try · 0% on the second · 81% named the group
Round 2 of 5 · Order
the three: Rodentia·intruder: Lagomorpha
- Asiatic Brush-Tailed PorcupineAtherurus macrourus
- Merriam’S Kangaroo RatDipodomys ordii
- Edible dormouseGlis glis
- European rabbitOryctolagus cuniculus
74% on the first try · 15% on the second · 89% named the group
Round 3 of 5 · Family
the three: Procyonidae·intruder: Ailuridae
- KinkajouPotos flavus
- White-nosed CoatimundiNasua narica
- Ring-Tailed CatBassariscus astutus
- Red PandasAilurus fulgens
26% on the first try · 19% on the second · 19% named the group · 56% fell here
Round 4 of 5 · Genus
the three: Lynx·intruder: Caracal
- BobcatLynx rufus
- CaracalCaracal caracal
- Eurasian LynxesLynx lynx
- Canada lynxLynx canadensis
52% on the first try · 11% on the second · 48% named the group
Round 5 of 5 · Species
the three: Vulpes velox·intruder: Vulpes vulpes
- Swift FoxVulpes velox
- Swift FoxVulpes velox
- Swift FoxVulpes velox
- Arabian Red FoxesVulpes vulpes arabica
44% on the first try · 30% on the second · 7% named the group

Play today’s challenge Past challenges

Challenge of October 10, 2026

Photos: Slow Cheetah Skeletons, Wikipedia

ClassicHarder than 95% of days

Golden-Mantled Ground Squirrel

Callospermophilus lateralis

Mammalia/Rodentia/Sciuridae/Callospermophilus/Callospermophilus lateralis

Players: 31
Median time: 7 sec

Solved on try

142%
235%
30%
40%
×23%

Most confused with

Arctic Ground SquirrelUrocitellus parryii3 of 31
European hamsterCricetus cricetus3 of 31
Franklin’S Ground SquirrelPoliocitellus franklinii3 of 31

Photos: Skull Index, Skullbase, Wikipedia

TaxonomyEasier than 75% of days

African Lions (Southern/Eastern Clade)

Panthera leo melanochaita

Where the community fell · players: 29

ClassMammalia100%
OrderCarnivora100%
FamilyFelidae93%
GenusPanthera93%
SpeciesPanthera leo melanochaita66%
28% fell here · Most picked wrong answer: Tigers [Bengal ssp.] (5 of 27)

66% reached the species

Skull MatchEasier than 65% of days

The skulls

American BisonBison bison
Chinese Water DeerHydropotes inermis
Bactrian CamelsCamelus bactrianus
MooseAlces alces

Decoy namesRoe Deer, Indian Muntjac

Players: 28
Matched them all: 75%
Mistakes on average: 2.4

Most common swap

American Bison taken for Roe Deer×19
American Bison taken for Indian Muntjac×15
Chinese Water Deer taken for Indian Muntjac×9

Speed RunEasier than 52% of days

The race

Players: 28
Finished: 89%
Median time: 32 sec
Median score: 5,893
Best score: 7,722

Skulls reached

1089%
97%
54%

The skulls of the race · players: 28

1. Mule Deer86% on the first try
2. Dingos86% on the first try
3. Giant moray71% on the first try
4. Common Blowfishes50% on the first try
5. Common Pike Congers86% on the first try
6. black-footed albatross52% on the first try
7. Egyptian mongoose74% on the first try
8. Black-Backed Jackal70% on the first try
9. Atlantic Yellow-nosed Albatross74% on the first try
10. Banded Mongooses60% on the first try

Toughest skull: Banded Mongooses · 40% fell here · median time 2.4 sec

Odd One OutEasier than 57% of days

The odd ones out

Players: 27
Won: 89%
Found on average: 3.6/5

Round 1 of 5 · Class
the three: Reptilia·intruder: Mammalia
- American AlligatorAlligator mississippiensis
- Russian tortoiseAgrionemys horsfieldii
- Ball PythonsPython regius
- Great Roundleaf BatHipposideros armiger
89% on the first try · 0% on the second · 81% named the group
Round 2 of 5 · Order
the three: Rodentia·intruder: Lagomorpha
- Asiatic Brush-Tailed PorcupineAtherurus macrourus
- Merriam’S Kangaroo RatDipodomys ordii
- Edible dormouseGlis glis
- European rabbitOryctolagus cuniculus
74% on the first try · 15% on the second · 89% named the group
Round 3 of 5 · Family
the three: Procyonidae·intruder: Ailuridae
- KinkajouPotos flavus
- White-nosed CoatimundiNasua narica
- Ring-Tailed CatBassariscus astutus
- Red PandasAilurus fulgens
26% on the first try · 19% on the second · 19% named the group · 56% fell here
Round 4 of 5 · Genus
the three: Lynx·intruder: Caracal
- BobcatLynx rufus
- CaracalCaracal caracal
- Eurasian LynxesLynx lynx
- Canada lynxLynx canadensis
52% on the first try · 11% on the second · 48% named the group
Round 5 of 5 · Species
the three: Vulpes velox·intruder: Vulpes vulpes
- Swift FoxVulpes velox
- Swift FoxVulpes velox
- Swift FoxVulpes velox
- Arabian Red FoxesVulpes vulpes arabica
44% on the first try · 30% on the second · 7% named the group

Challenge of October 10, 2026

Golden-Mantled Ground Squirrel

African Lions (Southern/Eastern Clade)

The skulls

The race

The odd ones out

Challenge of 28 de setembro

Lobo-guará

Lobo-guará

Challenge of October 10, 2026

Golden-Mantled Ground Squirrel

African Lions (Southern/Eastern Clade)

The skulls

The race

The odd ones out