"How did cats enter the homes of humans? Follow the lineage of cats from ancient predators to cuddly companions." ― Information Tab
A Feline Journey is a limited time event which focuses on Cats. It features 10 generators and 48 upgrades that produce Paws 
.
Story[]
Opening[]
"Humans have a fascination with members of the feline family. These creatures can be fearsome predators, yet some live a domesticated life. How did these threatening feliforms evolve into household pets?"
Ending[]
"Cats evolved to hunt and adapt to any environment they enter. Yet when humans offered them food and a home, cats accepted. It seems house cats searched for prey, but also found a companion."
Objectives & Rewards[]
The requirements that have to be completed in order to get all rewards.
Explore Cats (12 Requirements)
- Collect Pantherinae, Felinae → 1
- Collect Panthera → 2
- Collect Tiger → 3
- Collect Claws → Paws and Claws Badge
- Collect African Caracal, Serval → 4
- Collect Flexibility → 6
- Collect Andean Mountain Cat, Eurasian Lynx → 7
- Collect Scrapey Tongue → Got Your Tongue? Badge
- Collect Jaguar, Sunda Leopard Cat → 8
- Collect Rusty-Spotted Cat, Black-Footed Cat → 9
- Collect Pallas' Cat, Fluffy → 10
- Collect Hunter at Heart → Top Tier Badge
Badges[]
This exploration holds some rewards already mentioned above. The main ones being these three badges: Bronze: Paws and Claws, Silver: Got Your Tongue? and Gold: Top Tier which have an effect on all other evolutionary branches, speeding up every simulation by 1%, and also speeding up production in future A Feline Journey simulations by 5, 10 and 15% respectively.
Paws and Claws[]
"The pads of a cat's paw cushion them when falling from big heights, and are also the only place a cat can sweat from."
Got Your Tongue?[]
"The spikes on a cat's tongue scoop up water and nutrients, while also serving as a natural comb."
Top Tier[]
"The Felidae family is made up of 41 cat species. The best one, though? The feline friends that made their way into the homes of humans."
Generators[]
| Icon | Name | Description | Base Cost | Base Production | Requires |
|---|---|---|---|---|---|
|
Felidae | All modern cat species spawn from the ancient Pseudaelurus, which lives in Asia around 20 million years in the past. Its felid descendants are divided into two general categories: those that purr and those that roar. | 30
|
1/sec
|
- |
|
Panthera | Species come and go over millennia, but the big cat lineage remains strong. With some weighing over 272 kg, Panthera are the apex predators of any environment they inhabit. | 30,000
|
200/sec
|
Pantherinae Digitigrade |
|
Bay Cat | Cats travel further into the south of Asia, reaching the Malay Peninsula and the islands of Borneo and Sumatra. Cats of this lineage have unknown population densities, making them some of the least studied cats in the world. | 3e7
|
40,000/sec
|
Felinae Snow Leopard |
|
Caracal | Cats reach Africa during the first Ice Age, traversing land bridges across the Red Sea. The three subspecies of caracal settle in radically different biomes, developing adaptations for life in forests, savannahs and wetlands. | 3e10
|
1e7/sec
|
Felinae Marbled Cat |
|
Ocelot | The ancestors of the ocelot migrate over a land bridge to North America. Their descendants then travel over the Panama land bridge in the second ice age, diversifying into thirteen different species with spotted coats. | 1e13
|
2.5e9/sec
|
Felinae Serval |
|
Lynx | During the second ice age, cats travel back from North America to Asia. Dispersed across the forests of North America, Europe, and Asia, a lynx can be identified by its short tail and the tufts of fur atop its ears. | 1e16
|
8e11/sec
|
Felinae Geoffroy's Cat |
|
Puma | The three species of puma spread from North America into South America and towards Africa. Despite being part of the same lineage, they have nothing in common except for their large size. | 1e18
|
1.5e14/sec
|
Felinae Iberian Lynx |
|
Leopard Cat | Originating in North America, the leopard cat ancestor travels back over the Bering land bridge. Once they reach Asia they disperse throughout India and China. | 5e20
|
4e16/sec
|
Felinae Cheetah |
|
Felis | The youngest lineage of cats spreads across several continents after the second Ice Age, traveling into Asia, Europe, and Africa. These cats are significantly smaller than most wild cats, with the largest weighing only 35 lbs. | 5e23
|
2e19/sec
|
Felinae Flat-Headed Cat |
|
House Cats | African wildcats evolve into the modern house cat, developing a close relationship with humans. Cats spread across continents, adapting to new climates naturally before modern breeds are created in the 19th century. | 3e26
|
5e21/sec
|
African Wildcat Pallas' Cat |
Upgrades[]
Felidae Efficiency[]
| Icon | Name | Description | Cost | Effect | Requires |
|---|---|---|---|---|---|
|
Pantherinae | Big cats are solitary and use their booming roar to contact potential mates over wide, open territories. Their ability to roar is shaped by a thick layer of cartilage that gives their larynx additional flexibility. | 100
|
75% | Felidae |
|
Felinae | Where some cats roar, others have a fully hardened hyoid bone that allows them to purr. Felinae begin purring at a few days old, using it as a method for self-soothing and a means to communicate contentment or discomfort. | 750
|
75% | Felidae Pantherinae |
|
Digitigrade | Cats are known for their speed and leaping ability, enabled by their posture. Felines walk on their toes with their ankles above the ground. The joint acts as a pivot point, providing them with leverage for a spring-like jump. | 3,000
|
50% | Felinae |
|
Claws | Nearly every cat species is equipped with retractable claws, allowing them to walk silently and keep their nails sharp when not in use. The front claws grip prey, while the back can gut an animal's stomach. | 3e7
|
50000% | Digitigrade |
|
Acute Senses | A cat is an efficient predator with keen senses. Its ears can rotate up to 180 degrees to identify the source of a sound, its nose is 14 times more powerful than a human's, and its eyes are set wide for a large field of view. | 8e9
|
1500% | Claws |
|
Flexibility | Elastic discs connect each vertebra in a cat's spine, allowing them to rotate their head and body up to 180 degrees. This flexibility allows them to contort their bodies as they fall so they can successfully land on their feet. | 6e12
|
25000% | Acute Senses |
|
Patterned Coats | The coloring and markings on a cat's coat help it blend with its surroundings. Stripes break up an animal's outline into smaller segments, spots mimic the appearances of shadows, and solid colors match specific environments. | 8e15
|
125000% | Flexibility |
|
Scrapey Tongue | A cat's tongue has several small spikes called filiform papillae, which it uses to scrape the bones of a carcass, easily removing nutrients from the meat. These spikes are also used for grooming, where they comb excess debris from fur. | 8e17
|
10000% | Patterned Coats |
|
Short Skull | Cats rely on their strong jaw muscles to survive in the wild. To make room for these large muscles, cat skulls evolve to be relatively flat, allowing them to bite with precision and power. | 2.5e20
|
10000% | Scrapey Tongue |
|
Obligate Carnivores | Cats must hunt other animals to survive. The high levels of proteins and fats found in prey supply them with energy, and the water within the meat keeps them hydrated. | 3e23
|
250000% | Short Skull |
|
Whiskers | Embedded deep in the skin of their legs and faces, a cat's whiskers contribute to its sense of touch. Even a sightless cat can navigate their environment with their whiskers, each of which are equipped with sensory organs. | 2.43e26
|
50000% | Obligate Carnivores |
Panthera Efficiency[]
| Icon | Name | Description | Cost | Effect | Requires |
|---|---|---|---|---|---|
|
Clouded Leopard | With feet that can grip branches and the ability to descend headfirst from a tree, the clouded leopard is a natural climber. As the first genus to branch out of Pantherinae, it is the most ancient living cat species. | 80,000
|
100% | Panthera |
|
Tiger | The largest and strongest of the big cats, some individual tigers weigh more than 362 kg. Its forehead marking resembles the Chinese character for king, making it a symbol of power and royalty in Chinese culture. | 240,000
|
75% | Panthera Clouded Leopard |
|
Leopard | Active mostly at night, the leopard's large eyes and dilated pupils make it perfectly equipped to hunt in low-light. Leopards are the smallest of the big cats, but are highly athletic and known for their climbing abilities. | 720,000
|
50% | Panthera Tiger |
|
Snow Leopard | Usually solitary, snow leopards can be found in the high mountains of Asia. Feeding on sheep and goats, they can live at up to 18,000 feet in elevation and leap distances up to 9 times their body length. | 2.16e6
|
100% | Panthera Leopard |
|
Sunda Clouded Leopard | Found in Borneo and Sumatra, the Sunda clouded leopard shares the same climbing skills as its mainland sibling. Its strong tail wraps around tree branches as it dangles above prey, easily catching primates and birds. | 2.7e9
|
4000% | Panthera Asian Golden Cat |
|
Lion | The most social of the wild cats, lions live in extended familial groupings known as prides. They are the only cat species in which the two sexes look distinctly different, with males growing manes at two years of age. | 1.5e12
|
10000% | Panthera African Caracal |
|
Jaguar | The strong jaws and teeth of a jaguar allow it to pierce crocodile hides and turtle shells with its bite. In reverence of the cat's power, some Aztec warriors name themselves 'ocelotl', the Nauhatl word for jaguar. | 9e19
|
1e9% | Panthera Cougar |
Bay Cat Efficiency[]
| Icon | Name | Description | Cost | Effect | Requires |
|---|---|---|---|---|---|
|
Bornean Bay Cat | Found exclusively in the rainforests of Borneo, the bay cat has never been studied in the wild. Most knowledge about the elusive feline comes from historical specimens, and it is not until 1992 that one is studied in captivity. | 1e8
|
50% | Bay Cat |
|
Asian Golden Cat | Set apart from other bay cats by its near-golden coat, knowledge about the Asian golden cat is taken from local testimonies in Thailand. A solitary creature, it is believed to birth its litters in hidden locations like hollow trees. | 3e8
|
100% | Bay Cat |
|
Marbled Cat | The tail of the marbled cat sticks out horizontally when it walks, helping the cat keep balance. Camera traps are the only reliable way to study them, as their thick spotted coats blend into their forest surroundings. | 9e8
|
75% | Bay Cat Asian Golden Cat |
Caracal Efficiency[]
| Icon | Name | Description | Cost | Effect | Requires |
|---|---|---|---|---|---|
|
African Caracal | Named after the Turkish word for 'black ears', unique tufts of hair sprout from the top of a caracal's ears. It is believed these tufts are used to communicate with other caracals and to blend in with tall grass. | 9e10
|
75% | Caracal |
|
Serval | Images of the long-necked serval can be found in the tombs of Ancient Egyptian nobility, suggesting they were kept as companions. Mafdet, the goddess of justice, bears the head of the cat in some depictions. | 2.7e11
|
100% | Caracal African Caracal |
Ocelot Efficiency[]
| Icon | Name | Description | Cost | Effect | Requires |
|---|---|---|---|---|---|
|
Ocelots | The spots of an ocelot camouflage it in forests and trees. Human interactions with ocelots date back to the Aztecs, who call them 'semi-jaguars', implying a presumed connection between the two Mesoamerican cats. | 7e13
|
125% | Ocelot |
|
Kodkod | The smallest wildcat native to the Americas, the kodkod is also one of the most despised. Known to kill the domestic chickens of Chilean farms, it is seen as an omen of death and destruction. | 2e14
|
100% | Ocelot |
|
Andean Mountain Cat | Among the world's most endangered felines, only ten sightings of the Andean Mountain Cat have been recorded since 1999. Native communities revere this animal as a sign of fertility connected with the Andes Mountains. | 6e14
|
75% | Ocelot Ocelots |
|
Geoffroy's Cat | Whether it be in the trees or water, the Geoffroy's cat can adapt to any situation for hunting. Unlike most cats, it stands upright on its hind legs to survey its environment, using its tail to stay supported. | 2e15
|
50% | Ocelot Kodkod |
|
Margay | The nocturnal margay has large eyes to enhance its night vision. Whereas most cats usually have six to ten teats, the margay only has two. This development is likely because it often gives birth to a single kitten. | 4e15
|
100% | Ocelot Kodkod |
Lynx Efficiency[]
| Icon | Name | Description | Cost | Effect | Requires |
|---|---|---|---|---|---|
|
Eurasian Lynx | The world's largest lynx weighs between 40 and 80 lbs. It commonly preys on large animals such as deer, and is known to hide animal carcasses in trees to keep its leftovers away from competitors. | 5e16
|
200% | Lynx |
|
Iberian Lynx | Weighing between 22 and 28 lbs, Iberian lynx live off a rabbit-heavy diet. Found only in southern Spain, habitat loss made it the most endangered cat species in the world. In 2002, there are less than 100 left in the wild. | 1.5e17
|
125% | Lynx |
|
Bobcat | Communication is key for bobcats, which use chirps, posture, and facial expressions to converse with one another. The white dots on the back of their ears can be used to scare opponents or guide kittens through darkness. | 3e17
|
150% | Lynx Eurasian Lynx |
Puma Efficiency[]
| Icon | Name | Description | Cost | Effect | Requires |
|---|---|---|---|---|---|
|
Cougar | The names puma, mountain lion, and cougar all apply to one cat. The cougar has the largest range of any cat, inhabiting North, Central, and South America. Its range was once even larger but was reduced by bounty hunts. | 9e18
|
175% | Puma |
|
Cheetah | The world's fastest land animal can reach speeds of 50-80mph in short bursts. In the 16th century, the Mughal Emperor Akbar keeps 30,000 cheetahs as hunting companions over his 49-year reign. | 3e19
|
100% | Puma |
Leopard Cat Efficiency[]
| Icon | Name | Description | Cost | Effect | Requires |
|---|---|---|---|---|---|
|
Leopard Cats | Hunting the rats plaguing the farms of neolithic China, leopard cats aid humans in exchange for meals. This dynamic doesn't seem to lead to domestication, the modern house cat is not closely related to the leopard cat. | 1e21
|
125% | Leopard Cat |
|
Sunda Leopard Cat | Living off small rodents, birds, and reptiles, Sunda leopard cats can be found throughout Indonesia. Despite primarily hunting on the ground, when it's time to rest the cat retreats above, sleeping in the tree tops. | 3e21
|
125% | Leopard Cat |
|
Fishing Cat | While most cats dislike getting wet, the fishing cat thrives in wetlands. While hunting for fish, it has little difficulty wading through water thanks to its webbed front paws and the dense fur protecting its skin. | 9e21
|
100% | Leopard Cat Leopard Cats |
|
Flat-Headed Cat | The eyes of the flat-headed cat are set forward, giving it depth perception like no other cat. This trait gives it an advantage in spotting moving fish in water. | 2.7e22
|
125% | Leopard Cat Sunda Leopard Cat |
|
Rusty-Spotted Cat | Weighing in at only 2-4 lbs, the rusty-spotted cat is the world's smallest wild cat. Despite its stature, it is a deadly hunter and is often killed for eating domestic chickens in India and Sri Lanka. | 8.1e22
|
100% | Leopard Cat Sunda Leopard Cat |
|
Pallas' Cat | The naturally secretive Pallas' cat lives in China and Mongolia. It is extremely muscular and appears even bulkier since its coat is denser and longer than that of any other cat. | 2.7e25
|
15000% | Leopard Cat Jungle Cat |
Felis Efficiency[]
| Icon | Name | Description | Cost | Effect | Requires |
|---|---|---|---|---|---|
|
Jungle Cat | Contrary to its name, the jungle cat prefers to make its home in swamps. Where most cats meow or hiss, jungle cats can produce a sound that resembles a barking dog. | 1e24
|
250% | Felis |
|
Black-Footed Cat | One of the smallest and most adorable wildcats is also one of the most deadly. It preys on rodents and birds, succeeding in 60% of its hunts. It spends the day resting, using abandoned termite mounds as shelter. | 3e24
|
100% | Felis |
|
Sand Cat | Native to Africa and Asia, the sand cat lives exclusively in deserts. It can survive without water for several weeks, and avoids intense heat by burrowing under the sand. | 9e24
|
100% | Felis Jungle Cat |
|
African Wildcat | The closest ancestor to the house cat is the African wildcat. Before leopard cats attempt domestication in Asia, these wildcats enter into peoples' homes to better hunt their favored prey of rats. | 8.1e25
|
250% | Felis Sand Cat |
House Cats Efficiency[]
| Icon | Name | Description | Cost | Effect | Requires |
|---|---|---|---|---|---|
|
Fluffy | Genetic mutations determine a cat's hair length. Short hair is a dominant trait, while long, fluffy coats are connected to four recessive mutations. A cat's coat thickens in the winter, with much of it being shed in the spring. | 6e26
|
200% | House Cats |
|
Australian Cats | There is no cat species native to the Australian continent. Instead, they come from domestic cats brought over in the late 18th century. Cats have since overtaken the ecosystem, wiping out one billion mammals a year. | 5e26
|
-0% | House Cats Fluffy |
|
Hairless | The Aztecs likely raised the first cat without fur, the extinct Mexican hairless cat. Modern hairless cats, like the sphinx, likely come from a mutation bred in the 1960s. | 1.5e27
|
400% | House Cats Fluffy |
|
Orange | The gene for orange fur is linked to the x-chromosome of a cat, making the trait more common in male cats. This might contribute to modern stereotypes of orange cats, such as being silly, or even all sharing a single brain cell. | 7e27
|
100% | House Cats Hairless |
|
Hunter at Heart | Despite domestication, house cats are still natural predators. Even without the need to hunt for survival, they retain their instinct to stalk and capture prey. They sometimes bring these catches to their humans as a gift. | 2.5e28
|
100% | House Cats Orange |
Tech Tree[]
|
Trivia[]
- It had a full body cat as its icon when it debuted on beta (June 1, 2024). A Feline Journey ran as a beta-only event thrice, and all three times it had the full body. This was changed to a cat face when it debuted on production (June 28).
- This event is a crossover with a zoology YouTuber named TierZoo.
- Many of the cat photos in this event are photos of the developers' real life cats!
| Explorations and Events | |
|---|---|
| Season 1 |  James Webb Telescope •  Fungi •  Philosophy •  Mass Extinction •  Money •  Pollination
|
| Season 2 |  Deep Sea Life •  Tea •  Music •  Human Body •  Visual Art •  Outbreaks •  Cats •  Rocks •  Cryptids
|
| Special Events |  A Dodo Ghost Hunt •  Augmentations Console
|