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 · Wednesday

Challenge of October 21, 2026

Photos: Slow Cheetah Skeletons, Wikipedia

ClassicHarder than 100% of days

Alpine Ibex

Capra ibex

Mammalia/Cetartiodactyla/Bovidae/Capra/Capra ibex

Players: 106
Median time: 12 sec

Solved on try

128%
234%
30%
40%
×38%

Most confused with

Domestic GoatsCapra aegagrus hircus59 of 106
Domestic AlpacaVicugna pacos5 of 106
GuanacosLama guanicoe4 of 106

Photos: Skull Index, Wikipedia

TaxonomyHarder than 69% of days

Eastern Blue-Tongued Skinks

Tiliqua scincoides scincoides

Where the community fell · players: 79

ClassReptilia94%
OrderSquamata71%
23% fell here · Most picked wrong answer: Lophiiformes (3 of 74)
FamilyScincidae61%
GenusTiliqua47%
SpeciesTiliqua scincoides scincoides39%

39% reached the species

Skull MatchEasier than 81% of days

The skulls

Common breamAbramis brama
Giant morayGymnothorax javanicus
Mbu PufferfishesTetraodon mbu
Common Pike CongersMuraenesox bagio

Decoy namesMinipizza Batfishes, Daggertooth Pike Congers

Players: 70
Matched them all: 70%
Mistakes on average: 2.3

Most common swap

Common Pike Congers taken for Daggertooth Pike Congers×37
Giant moray taken for Daggertooth Pike Congers×15
Common bream taken for Minipizza Batfishes×15

Speed RunHarder than 84% of days

The race

Players: 58
Finished: 72%
Median time: 37 sec
Median score: 5,630
Best score: 7,963

Skulls reached

1072%
912%
85%
73%
62%
32%
23%

The skulls of the race · players: 58

1. Short-beaked Echidnas72% on the first try
2. Sea Otter83% on the first try
3. Spotted Eagle Owl68% on the first try
4. Common Buzzards56% on the first try
5. Sika deer78% on the first try
6. Russian tortoise33% on the first try
7. Crab-Eating Mongoose59% on the first try
8. Canada lynx77% on the first try
9. Sand Cats84% on the first try
10. Proboscis Monkey74% on the first try

Toughest skull: Proboscis Monkey · 26% fell here · median time 2 sec

Odd One OutHarder than 73% of days

The odd ones out

Players: 50
Won: 82%
Found on average: 3.5/5

Round 1 of 5 · Class
the three: Reptilia·intruder: Amphibia
- Jackson's chameleonTrioceros jacksonii
- Green Sea TurtleChelonia mydas
- European Common FrogsRana temporaria
- Spectacled CaimanCaiman crocodilus
54% on the first try · 14% on the second · 68% named the group
Round 2 of 5 · Order
the three: Accipitriformes·intruder: Falconiformes
- Lappet Faced VulturesTorgos tracheliotos
- Common BuzzardsButeo buteo
- Hen harrierCircus cyaneus
- Common kestrelFalco tinnunculus
46% on the first try · 40% on the second · 30% named the group
Round 3 of 5 · Family
the three: Sciuridae·intruder: Cricetidae
- Cape Ground SquirrelXerus inauris
- European water voleArvicola amphibius
- Red squirrelSciurus vulgaris
- Golden-Mantled Ground SquirrelCallospermophilus lateralis
40% on the first try · 40% on the second · 52% named the group
Round 4 of 5 · Genus
the three: Lepus·intruder: Sylvilagus
- European hareLepus europaeus
- Scrub HareLepus saxatilis
- African Savanna HareLepus victoriae
- Eastern CottontailSylvilagus floridanus
24% on the first try · 24% on the second · 30% named the group · 52% fell here
Round 5 of 5 · Species
the three: Ursus arctos·intruder: Ursus americanus
- Brown BearsUrsus arctos
- American Black BearsUrsus americanus
- Brown BearsUrsus arctos
- Brown BearsUrsus arctos
48% on the first try · 24% on the second · 28% named the group

Play today’s challenge Past challenges

Challenge of October 21, 2026

Photos: Slow Cheetah Skeletons, Wikipedia

ClassicHarder than 100% of days

Alpine Ibex

Capra ibex

Mammalia/Cetartiodactyla/Bovidae/Capra/Capra ibex

Players: 106
Median time: 12 sec

Solved on try

128%
234%
30%
40%
×38%

Most confused with

Domestic GoatsCapra aegagrus hircus59 of 106
Domestic AlpacaVicugna pacos5 of 106
GuanacosLama guanicoe4 of 106

Photos: Skull Index, Wikipedia

TaxonomyHarder than 69% of days

Eastern Blue-Tongued Skinks

Tiliqua scincoides scincoides

Where the community fell · players: 79

ClassReptilia94%
OrderSquamata71%
23% fell here · Most picked wrong answer: Lophiiformes (3 of 74)
FamilyScincidae61%
GenusTiliqua47%
SpeciesTiliqua scincoides scincoides39%

39% reached the species

Skull MatchEasier than 81% of days

The skulls

Common breamAbramis brama
Giant morayGymnothorax javanicus
Mbu PufferfishesTetraodon mbu
Common Pike CongersMuraenesox bagio

Decoy namesMinipizza Batfishes, Daggertooth Pike Congers

Players: 70
Matched them all: 70%
Mistakes on average: 2.3

Most common swap

Common Pike Congers taken for Daggertooth Pike Congers×37
Giant moray taken for Daggertooth Pike Congers×15
Common bream taken for Minipizza Batfishes×15

Speed RunHarder than 84% of days

The race

Players: 58
Finished: 72%
Median time: 37 sec
Median score: 5,630
Best score: 7,963

Skulls reached

1072%
912%
85%
73%
62%
32%
23%

The skulls of the race · players: 58

1. Short-beaked Echidnas72% on the first try
2. Sea Otter83% on the first try
3. Spotted Eagle Owl68% on the first try
4. Common Buzzards56% on the first try
5. Sika deer78% on the first try
6. Russian tortoise33% on the first try
7. Crab-Eating Mongoose59% on the first try
8. Canada lynx77% on the first try
9. Sand Cats84% on the first try
10. Proboscis Monkey74% on the first try

Toughest skull: Proboscis Monkey · 26% fell here · median time 2 sec

Odd One OutHarder than 73% of days

The odd ones out

Players: 50
Won: 82%
Found on average: 3.5/5

Round 1 of 5 · Class
the three: Reptilia·intruder: Amphibia
- Jackson's chameleonTrioceros jacksonii
- Green Sea TurtleChelonia mydas
- European Common FrogsRana temporaria
- Spectacled CaimanCaiman crocodilus
54% on the first try · 14% on the second · 68% named the group
Round 2 of 5 · Order
the three: Accipitriformes·intruder: Falconiformes
- Lappet Faced VulturesTorgos tracheliotos
- Common BuzzardsButeo buteo
- Hen harrierCircus cyaneus
- Common kestrelFalco tinnunculus
46% on the first try · 40% on the second · 30% named the group
Round 3 of 5 · Family
the three: Sciuridae·intruder: Cricetidae
- Cape Ground SquirrelXerus inauris
- European water voleArvicola amphibius
- Red squirrelSciurus vulgaris
- Golden-Mantled Ground SquirrelCallospermophilus lateralis
40% on the first try · 40% on the second · 52% named the group
Round 4 of 5 · Genus
the three: Lepus·intruder: Sylvilagus
- European hareLepus europaeus
- Scrub HareLepus saxatilis
- African Savanna HareLepus victoriae
- Eastern CottontailSylvilagus floridanus
24% on the first try · 24% on the second · 30% named the group · 52% fell here
Round 5 of 5 · Species
the three: Ursus arctos·intruder: Ursus americanus
- Brown BearsUrsus arctos
- American Black BearsUrsus americanus
- Brown BearsUrsus arctos
- Brown BearsUrsus arctos
48% on the first try · 24% on the second · 28% named the group

Challenge of October 21, 2026

Alpine Ibex

Eastern Blue-Tongued Skinks

The skulls

The race

The odd ones out

Challenge of 28 de setembro

Lobo-guará

Lobo-guará

Challenge of October 21, 2026

Alpine Ibex

Eastern Blue-Tongued Skinks

The skulls

The race

The odd ones out