The diet system is exclusively implemented into the EVRIMA branch of The Isle. With the addition of this system players must focus on their hunger as well as a separate diet mechanic. There are three forms of diet: lipids, proteins, and carbohydrates. Lipids are represented by the two-line symbol, proteins by the "S" symbol, and carbohydrates by three dots. Carcasses can be gutted for organs which also provide nutrients. Intestines provide lipids, lungs carbs, heart protein, and stomach whatever the dinosaur's last meal was. When a player eats from a food source it may be on their preferred diet as listed in their character screen. The eaten food will fill one of three slots beside their hunger bar. Once a slot is filled, the symbol inside will take on a brighter color and activate a bonus. In addition to a body giving out nutrients the organs of a player will also do so and give the nutrient displayed on the sidebar. The bonus given out by different nutrients include increasing their growth speed, health regeneration, stamina regeneration, and scent/night vision range increase. Alternatively, having no activated diets gives a significant debuff to all stats listed above. Meat can become rotten after a certain length of time and also give debuffs to those who eat it. Diet is to be managed carefully in The Isle alongside hunger and thirst.

The scent system is implemented in both the Legacy and EVRIMA branches of the game though further developed in the latter. By pressing and holding the Q key players can examine their surroundings on a compass located at the upper half of the screen. Scent can be used to find plants, fresh meat, rotten meat, bones, and freshwater sources. It also has an arrow at opposite ends that points up for North and down for South. If a food source is on a player's diet and fresh it will be shown as a symbol of the diet it gives, Ex. a body that provides carbohydrates will appear as the carbohydrate symbol instead of a piece of meat on the radar. The scent range is determined by a player's growth and diet. Diets with lipid slots give a bonus to scent range. More grown dinosaurs also have a larger range by default though the extent depends on the dinosaur. Scent is a tool that grants a player access to more easy navigation about their surroundings.

Fractures are a component of The Isle which punishes the player for making a mistake in their gameplay. This either includes falling from a significant height or getting attacked by a Pachycephhlosaurus. The Pachycephhlosaurus has an exclusive ability that enables it to fracture the bone of a target dinosaur. This may either be the head, body, or leg. Whereas after falling the only fracture that may occur is the leg fracture (note that in more extreme circumstances the player may otherwise die as a result of fall damage). The Pachycephhlosaurus can fracture different components based on the target location of the attack. The head fracture reduces the player's visibility to a small section in the center of their screen. The leg fracture hinders their running ability and possibly some attacks based on the severity. The body fracture causes their stamina to drain much faster but slightly increases their default speed. Every fracture is unique and varies in severity. Falling from larger heights or fighting older Pachycephalosaurs will cause a worse fracture that will take longer to heal and a stronger debuff. Fractures can be healed over time while walking but heal much faster while resting. This mechanic causes players to act with more caution and have a heightened awareness of their surroundings.

The skin customization feature allows players to express themselves through an array of patterns and colors on their dinosaurs. While growing players have 3 ways their colors may emerge; Splotches, freckles, and sprinkles. The patterns are often called a variety of names but their concepts are the same. Splotches are large sections that grow over time to form a base color. Freckles are slightly smaller dots, and sprinkles are the smallest. The colors a player is allowed to choose from depends greatly on their dinosaur of choice. These colors may be very vibrant or very dull. Some players choose their favorite colors while others choose some that blend in with their environment and give them a natural bonus to their stealth. Male dinosaurs have access to another color option which differentiates them from the female form. For every dinosaur there are 2 color pattern options that stay with them as adults and can be picked while customizing known as patterns A and B. A is the default pattern while B is a modified version. In the image to the right, the Tenontosaurus with stripes along its back utilizes pattern B while the green Tenontosaurus has pattern A. With any color theme or pattern players create a recognizable appearance that helps both themselves and others tell between them and a stranger.

Nesting is a feature in The Isle that allows players to connect with others through a familial bond. If two players of the same species but opposite gender approach each other and mutually court each other by pressing N they can pair as a couple. This pair can create and build a nest. Nests of certain species require nesting material to be gathered and compiled which can be detected on the scent radar. Other nests can simply be dug up from the ground. Players can smell to detect a radar of the nest's location and temperature. If the nest's temperature exceeds the designated zone or dips below it eggs may rot and become unusable. If the incubation period is complete and at least one egg has survived the parents can set the nest to public or private. Nests are accessible in the spawn menu and private nests require a 4-digit code while public nests do not. An invitation request will be sent to the parents who can either accept or decline it. If they accept an egg will be replaced by a player who can hatch and spawn as a hatchling of the parents' species and skins. Hatchlings are either a copy of one parent's skin or a mix of both. While in the hatchling stage players cannot eat solid food or drink. They must beg at their parents until they regurgitate food for nutrients. Nutrients are passed from parent to child. The hatchling will be unable to beg any longer once past the hatchling stage and will often stay with its parents for protection until it is no longer accessible. Nests are endangered by hungry carnivores and the Compsognathus AI which spawn naturally and attack the nest or hatchlings. If two players are dedicated to nesting and raising young this feature can enrich their experience and add familial depth to an already excellent game.

Mud is a map feature that encourages players to wallow within. By wallowing in mud players can more efficiently heal off bleed damage and decorate themselves in a camouflaged skin for a few minutes. Mud pools slow players and prevent them from running, jumping, or using some attacks while within. This makes them a prime location for fleeing targets during combat. They can wait out attacks from others by healing damage and taking advantage of the environment. Though sitting in mud does not boost the player's water stat it does give them a brown-tinted skin. This can be vital when facing a predator during either the night or day. The brown skin reflects the mud pattern and can be used when hiding. While using night vision it is nearly impossible to tell between grass and dull brown due to their lack in difference in shades which night vision depends upon. Overall mud is a component of the map used by players as both camouflage and a remedy.

Sickness occurs when a player does not take necessary precautions and is punished for it. While eating if a player continuously chooses to eat even more than their hunger bar can handle it will flash yellow before causing them to vomit. This is called vomit sickness and causes a decrease in the maximum thirst, hunger, and stamina that can be filled without another vomit. Vomit sickness can be solved by waiting it out or visiting various salt licks around the map. 

Another way to get sick is by eating one of your own species as a carnivore while it is not on your diet. This will cause muscle spasms that cause the player to bite at random intervals. It can be especially harmful when in a group of players and cannot be healed by traveling to a salt lick. It takes much longer than vomit sickness to heal and is potentially much more harmful.

A major part of The Isle is social interactions with other players. While you cannot have conversations or organized speech with other species this cannot be said for the same. Friendly calling at another player of the same species sends a group invite. If they accept you will be grouped and able to see usernames from moderate distances. This connects players even if they do not have connections in real life. In addition to having each others usernames and locations revealed the players can type in a chat which shares messages to local players of the same species. Grouping enhances gameplay by uniting players of the same species and encouraging communication and teamwork.

Growth is a natural part of The Isle which has transferred from Legacy to EVRIMA. In the initial release of the game this function required the press of a button to age up after a period of time. In EVRIMA growth is seamless and occurs gradually. When players join a server they are able to choose a dinosaur and automatically spawn at a certain growth. For dinosaurs with shorter growth times this is about 20% and for those with longer growth times it is 10%. When nested players spawn at 0% growth and therefore have a slight disadvantage to others. Players do not spawn with their proportions and colors fully developed. Over time these features advance and grow until they are fully grown. Growth times range from 30 minutes to 12 hours. Larger, stronger dinosaurs take much longer to grow. Growth can be accelerated with a balanced diet giving up to a 50% bonus in speed. As a dinosaur grows it becomes a better version of itself. It increases in health, speed, and strength. Although, some dinosaurs have statistics that peak at their Sub-Adult phase. For example, Sub-Adult Carnotaurs are slightly quicker than their adult counterpart. Growth is a representative of time which brings something to be lost when a player dies; hours of work. Though morbid in a sense it can be incredibly prideful to grow a dinosaur to full and be able to experience it during its prime age.