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 19, 2026

Photos: Slow Cheetah Skeletons, Wikipedia

ClassicEasier than 61% of days

Ocelot

Leopardus pardalis

Mammalia/Carnivora/Felidae/Leopardus/Leopardus pardalis

Players: 44
Median time: 5 sec

Solved on try

161%
232%
30%
40%
×7%

Most confused with

Geoffrey's CatsLeopardus geoffroyi16 of 44
Asian Small-Clawed OttersAonyx cinerea1 of 44
White-nosed CoatimundiNasua narica1 of 44

Photos: Slow Cheetah Skeletons, Wikipedia

TaxonomyHarder than 91% of days

Pygmy Hippopotamus

Choeropsis liberiensis or Hexaprotodon liberiensis

Where the community fell · players: 44

ClassMammalia100%
OrderCetartiodactyla75%
FamilyHippopotamidae45%
30% fell here · Most picked wrong answer: Tayassuidae (2 of 33)
GenusChoeropsis27%
SpeciesChoeropsis liberiensis or Hexaprotodon liberiensis25%

25% reached the species

Skull MatchEasier than 62% of days

The skulls

Fishing CatPrionailurus viverrinus
Tigers [Bengal ssp.]Panthera tigris tigris
JaguarPanthera onca
LeopardPanthera pardus

Decoy namesMiddle Russian stoat, Canada lynx

Players: 45
Matched them all: 67%
Mistakes on average: 2.4

Most common swap

Tigers [Bengal ssp.] taken for Canada lynx×13
Leopard taken for Tigers [Bengal ssp.]×12
Fishing Cat taken for Canada lynx×12

Speed RunHarder than 90% of days

The race

Players: 43
Finished: 74%
Median time: 39 sec
Median score: 5,380
Best score: 7,158

Skulls reached

1074%
99%
85%
72%
62%
55%
42%

The skulls of the race · players: 43

1. Raccoon Dogs (Tanuki)86% on the first try
2. Common Eland67% on the first try
3. Scrub Hare70% on the first try
4. Middle Russian stoat60% on the first try
5. Minipizza Batfishes67% on the first try
6. Cheetah65% on the first try
7. Snowshoe Hare46% on the first try
8. Four Toed Hedgehogs53% on the first try
9. American Hog-Nosed Skunk50% on the first try
10. Bobcat81% on the first try

Toughest skull: American Hog-Nosed Skunk · 50% fell here · median time 2.2 sec

Odd One OutEasier than 73% of days

The odd ones out

Players: 44
Won: 95%
Found on average: 4/5

Round 1 of 5 · Class
the three: Aves·intruder: Reptilia
- Northern GannetMorus bassanus
- Aldabra Giant TortoisesAldabrachelys gigantea
- Southern Ground HornbillBucorvus leadbeateri
- Abdim's StorkCiconia abdimii
100% on the first try · 0% on the second · 93% named the group
Round 2 of 5 · Order
the three: Procellariiformes·intruder: Bucerotiformes
- Congo Pied HornbillLophoceros fasciatus
- black-browed albatrossThalassarche melanophris
- Northern FulmarFulmarus glacialis
- Atlantic Yellow-nosed AlbatrossThalassarche chlororhynchos
98% on the first try · 2% on the second · 48% named the group
Round 3 of 5 · Family
the three: Alligatoridae·intruder: Crocodylidae
- Broad-snouted caimanCaiman latirostris
- American AlligatorAlligator mississippiensis
- Saltwater CrocodilesCrocodylus porosus
- Spectacled CaimanCaiman crocodilus
20% on the first try · 14% on the second · 27% named the group · 66% fell here
Round 4 of 5 · Genus
the three: Ursus·intruder: Tremarctos
- American Black BearsUrsus americanus
- Brown BearsUrsus arctos
- Asiatic Black BearsUrsus thibetanus
- Spectacled BearTremarctos ornatus
45% on the first try · 41% on the second · 57% named the group
Round 5 of 5 · Species
the three: Panthera pardus·intruder: Panthera onca
- African LeopardPanthera pardus pardus
- African LeopardPanthera pardus pardus
- JaguarPanthera onca
- Indian LeopardsPanthera pardus fusca
27% on the first try · 48% on the second · 27% named the group

Play today’s challenge Past challenges

Challenge of October 19, 2026

Photos: Slow Cheetah Skeletons, Wikipedia

ClassicEasier than 61% of days

Ocelot

Leopardus pardalis

Mammalia/Carnivora/Felidae/Leopardus/Leopardus pardalis

Players: 44
Median time: 5 sec

Solved on try

161%
232%
30%
40%
×7%

Most confused with

Geoffrey's CatsLeopardus geoffroyi16 of 44
Asian Small-Clawed OttersAonyx cinerea1 of 44
White-nosed CoatimundiNasua narica1 of 44

Photos: Slow Cheetah Skeletons, Wikipedia

TaxonomyHarder than 91% of days

Pygmy Hippopotamus

Choeropsis liberiensis or Hexaprotodon liberiensis

Where the community fell · players: 44

ClassMammalia100%
OrderCetartiodactyla75%
FamilyHippopotamidae45%
30% fell here · Most picked wrong answer: Tayassuidae (2 of 33)
GenusChoeropsis27%
SpeciesChoeropsis liberiensis or Hexaprotodon liberiensis25%

25% reached the species

Skull MatchEasier than 62% of days

The skulls

Fishing CatPrionailurus viverrinus
Tigers [Bengal ssp.]Panthera tigris tigris
JaguarPanthera onca
LeopardPanthera pardus

Decoy namesMiddle Russian stoat, Canada lynx

Players: 45
Matched them all: 67%
Mistakes on average: 2.4

Most common swap

Tigers [Bengal ssp.] taken for Canada lynx×13
Leopard taken for Tigers [Bengal ssp.]×12
Fishing Cat taken for Canada lynx×12

Speed RunHarder than 90% of days

The race

Players: 43
Finished: 74%
Median time: 39 sec
Median score: 5,380
Best score: 7,158

Skulls reached

1074%
99%
85%
72%
62%
55%
42%

The skulls of the race · players: 43

1. Raccoon Dogs (Tanuki)86% on the first try
2. Common Eland67% on the first try
3. Scrub Hare70% on the first try
4. Middle Russian stoat60% on the first try
5. Minipizza Batfishes67% on the first try
6. Cheetah65% on the first try
7. Snowshoe Hare46% on the first try
8. Four Toed Hedgehogs53% on the first try
9. American Hog-Nosed Skunk50% on the first try
10. Bobcat81% on the first try

Toughest skull: American Hog-Nosed Skunk · 50% fell here · median time 2.2 sec

Odd One OutEasier than 73% of days

The odd ones out

Players: 44
Won: 95%
Found on average: 4/5

Round 1 of 5 · Class
the three: Aves·intruder: Reptilia
- Northern GannetMorus bassanus
- Aldabra Giant TortoisesAldabrachelys gigantea
- Southern Ground HornbillBucorvus leadbeateri
- Abdim's StorkCiconia abdimii
100% on the first try · 0% on the second · 93% named the group
Round 2 of 5 · Order
the three: Procellariiformes·intruder: Bucerotiformes
- Congo Pied HornbillLophoceros fasciatus
- black-browed albatrossThalassarche melanophris
- Northern FulmarFulmarus glacialis
- Atlantic Yellow-nosed AlbatrossThalassarche chlororhynchos
98% on the first try · 2% on the second · 48% named the group
Round 3 of 5 · Family
the three: Alligatoridae·intruder: Crocodylidae
- Broad-snouted caimanCaiman latirostris
- American AlligatorAlligator mississippiensis
- Saltwater CrocodilesCrocodylus porosus
- Spectacled CaimanCaiman crocodilus
20% on the first try · 14% on the second · 27% named the group · 66% fell here
Round 4 of 5 · Genus
the three: Ursus·intruder: Tremarctos
- American Black BearsUrsus americanus
- Brown BearsUrsus arctos
- Asiatic Black BearsUrsus thibetanus
- Spectacled BearTremarctos ornatus
45% on the first try · 41% on the second · 57% named the group
Round 5 of 5 · Species
the three: Panthera pardus·intruder: Panthera onca
- African LeopardPanthera pardus pardus
- African LeopardPanthera pardus pardus
- JaguarPanthera onca
- Indian LeopardsPanthera pardus fusca
27% on the first try · 48% on the second · 27% named the group

Challenge of October 19, 2026

Ocelot

Pygmy Hippopotamus

The skulls

The race

The odd ones out

Challenge of 28 de setembro

Lobo-guará

Lobo-guará

Challenge of October 19, 2026

Ocelot

Pygmy Hippopotamus

The skulls

The race

The odd ones out