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 · Monday

Challenge of October 26, 2026

Photos: Slow Cheetah Skeletons, Wikipedia

ClassicHarder than 92% of days

Diadem Leaf-Nosed Bat

Hipposideros diadema

Mammalia/Chiroptera/Hipposideridae/Hipposideros/Hipposideros diadema

Players: 65
Median time: 8 sec

Solved on try

140%
243%
30%
40%
×17%

Most confused with

Veldkamp's Dwarf Epauletted Fruit BatNanonycteris veldkampii7 of 65
Big Brown BatEptesicus fuscus6 of 65
Greater False Vampire BatMegaderma lyra5 of 65

Photos: Skull Index, Wikipedia

TaxonomyHarder than 91% of days

Great Roundleaf Bat

Hipposideros armiger

Where the community fell · players: 58

ClassMammalia98%
OrderChiroptera81%
FamilyHipposideridae34%
47% fell here · Most picked wrong answer: Chelydridae (3 of 47)
GenusHipposideros31%
SpeciesHipposideros armiger26%

26% reached the species

Skull MatchEasier than 90% of days

The skulls

DingosCanis lupus dingo
Northern TamanduaTamandua mexicana
Collared PeccaryPecari tajacu
Giant AnteaterMyrmecophaga tridactyla

Decoy namesLinnaeus's two-toed Sloths, Southern Tamandua

Players: 55
Matched them all: 84%
Mistakes on average: 1.6

Most common swap

Northern Tamandua taken for Southern Tamandua×27
Collared Peccary taken for Southern Tamandua×10
Collared Peccary taken for Northern Tamandua×7

Speed RunEasier than 70% of days

The race

Players: 51
Finished: 90%
Median time: 36 sec
Median score: 6,355
Best score: 8,562

Skulls reached

1090%
92%
74%
42%
22%

The skulls of the race · players: 51

1. Senegal Galagos43% on the first try
2. Coyotes76% on the first try
3. Daggertooth Pike Congers66% on the first try
4. Maned Wolves72% on the first try
5. Mexican Beaded Lizards67% on the first try
6. Golden Jackals82% on the first try
7. Crab-eating Macaque41% on the first try
8. Gemsbok70% on the first try
9. Wandering Albatross57% on the first try
10. Syrian Hamster50% on the first try

Toughest skull: Syrian Hamster · 50% fell here · median time 2 sec

Odd One OutEasier than 82% of days

The odd ones out

Players: 46
Won: 98%
Found on average: 4/5

Round 1 of 5 · Class
the three: Reptilia·intruder: Amphibia
- Quince MonitorsVaranus melinus
- Spectacled CaimanCaiman crocodilus
- Russian tortoiseAgrionemys horsfieldii
- Asian common toadDuttaphrynus melanostictus
70% on the first try · 20% on the second · 83% named the group
Round 2 of 5 · Order
the three: Rodentia·intruder: Lagomorpha
- PacaranaDinomys branickii
- Swamp RabbitSylvilagus aquaticus
- Naked Mole-RatHeterocephalus glaber
- Eastern WoodratNeotoma floridana
80% on the first try · 11% on the second · 80% named the group
Round 3 of 5 · Family
the three: Vespertilionidae·intruder: Megadermatidae
- Greater False Vampire BatMegaderma lyra
- Kuhl's pipistrellePipistrellus kuhlii
- Big Brown BatEptesicus fuscus
- Brown long-eared batPlecotus auritus
22% on the first try · 24% on the second · 9% named the group · 54% fell here
Round 4 of 5 · Genus
the three: Mustela·intruder: Taxidea
- Irish stoatMustela erminea hibernica
- Transcaucasian weaselMustela nivalis boccamela
- European steppe polecatMustela eversmanii hungarica
- American BadgersTaxidea taxus
87% on the first try · 13% on the second · 74% named the group
Round 5 of 5 · Species
the three: Panthera tigris·intruder: Panthera leo
- Tigers [Unknown ssp.]Panthera tigris
- African Lions (Southern/Eastern Clade)Panthera leo melanochaita
- Tigers [Unknown ssp.]Panthera tigris
- Tigers [Bengal ssp.]Panthera tigris tigris
43% on the first try · 30% on the second · 11% named the group

Play today’s challenge Past challenges

Challenge of October 26, 2026

Photos: Slow Cheetah Skeletons, Wikipedia

ClassicHarder than 92% of days

Diadem Leaf-Nosed Bat

Hipposideros diadema

Mammalia/Chiroptera/Hipposideridae/Hipposideros/Hipposideros diadema

Players: 65
Median time: 8 sec

Solved on try

140%
243%
30%
40%
×17%

Most confused with

Veldkamp's Dwarf Epauletted Fruit BatNanonycteris veldkampii7 of 65
Big Brown BatEptesicus fuscus6 of 65
Greater False Vampire BatMegaderma lyra5 of 65

Photos: Skull Index, Wikipedia

TaxonomyHarder than 91% of days

Great Roundleaf Bat

Hipposideros armiger

Where the community fell · players: 58

ClassMammalia98%
OrderChiroptera81%
FamilyHipposideridae34%
47% fell here · Most picked wrong answer: Chelydridae (3 of 47)
GenusHipposideros31%
SpeciesHipposideros armiger26%

26% reached the species

Skull MatchEasier than 90% of days

The skulls

DingosCanis lupus dingo
Northern TamanduaTamandua mexicana
Collared PeccaryPecari tajacu
Giant AnteaterMyrmecophaga tridactyla

Decoy namesLinnaeus's two-toed Sloths, Southern Tamandua

Players: 55
Matched them all: 84%
Mistakes on average: 1.6

Most common swap

Northern Tamandua taken for Southern Tamandua×27
Collared Peccary taken for Southern Tamandua×10
Collared Peccary taken for Northern Tamandua×7

Speed RunEasier than 70% of days

The race

Players: 51
Finished: 90%
Median time: 36 sec
Median score: 6,355
Best score: 8,562

Skulls reached

1090%
92%
74%
42%
22%

The skulls of the race · players: 51

1. Senegal Galagos43% on the first try
2. Coyotes76% on the first try
3. Daggertooth Pike Congers66% on the first try
4. Maned Wolves72% on the first try
5. Mexican Beaded Lizards67% on the first try
6. Golden Jackals82% on the first try
7. Crab-eating Macaque41% on the first try
8. Gemsbok70% on the first try
9. Wandering Albatross57% on the first try
10. Syrian Hamster50% on the first try

Toughest skull: Syrian Hamster · 50% fell here · median time 2 sec

Odd One OutEasier than 82% of days

The odd ones out

Players: 46
Won: 98%
Found on average: 4/5

Round 1 of 5 · Class
the three: Reptilia·intruder: Amphibia
- Quince MonitorsVaranus melinus
- Spectacled CaimanCaiman crocodilus
- Russian tortoiseAgrionemys horsfieldii
- Asian common toadDuttaphrynus melanostictus
70% on the first try · 20% on the second · 83% named the group
Round 2 of 5 · Order
the three: Rodentia·intruder: Lagomorpha
- PacaranaDinomys branickii
- Swamp RabbitSylvilagus aquaticus
- Naked Mole-RatHeterocephalus glaber
- Eastern WoodratNeotoma floridana
80% on the first try · 11% on the second · 80% named the group
Round 3 of 5 · Family
the three: Vespertilionidae·intruder: Megadermatidae
- Greater False Vampire BatMegaderma lyra
- Kuhl's pipistrellePipistrellus kuhlii
- Big Brown BatEptesicus fuscus
- Brown long-eared batPlecotus auritus
22% on the first try · 24% on the second · 9% named the group · 54% fell here
Round 4 of 5 · Genus
the three: Mustela·intruder: Taxidea
- Irish stoatMustela erminea hibernica
- Transcaucasian weaselMustela nivalis boccamela
- European steppe polecatMustela eversmanii hungarica
- American BadgersTaxidea taxus
87% on the first try · 13% on the second · 74% named the group
Round 5 of 5 · Species
the three: Panthera tigris·intruder: Panthera leo
- Tigers [Unknown ssp.]Panthera tigris
- African Lions (Southern/Eastern Clade)Panthera leo melanochaita
- Tigers [Unknown ssp.]Panthera tigris
- Tigers [Bengal ssp.]Panthera tigris tigris
43% on the first try · 30% on the second · 11% named the group

Challenge of October 26, 2026

Diadem Leaf-Nosed Bat

Great Roundleaf Bat

The skulls

The race

The odd ones out

Challenge of 28 de setembro

Lobo-guará

Lobo-guará

Challenge of October 26, 2026

Diadem Leaf-Nosed Bat

Great Roundleaf Bat

The skulls

The race

The odd ones out