Dinosaur Survival · Strategy · Cosmo Hub

The Isle

Afterthought’s long-running dinosaur survival game. Play as the dinosaur; hunt, scavenge, breed, survive.

Welcome to the Cosmo strategy hub for The Isle. Afterthought LLC’s dinosaur-survival multiplayer game has been in active early access since 2015, with two active branches: Legacy (older, no longer developed) and Evrima (the actively-developed current branch). Currently Evrima version 0.21.x as of May 2026, with the Gateway content arc bringing new mechanics. Players take direct control of a dinosaur (not a human), hunting, scavenging, breeding, and surviving alongside other player-controlled dinosaurs on contested islands. Everything below is vanilla, mechanics-only knowledge — the survival loop, the two branches, playable species, notable dinosaurs, growth stages, nesting and reproduction, hunting and combat, maps, server types, audio and settings, and pro tips.

01 · The Dinosaur Survival Loop

You are the dinosaur. Hunt, scavenge, breed, survive.

  • Play as the dinosaur Unlike ARK (where you tame dinosaurs), The Isle has you directly control a dinosaur. Spawn as a hatchling; grow through life stages; survive predators, hunger, and dehydration.
  • Hunt or be hunted Carnivores hunt herbivores; large carnivores hunt smaller ones; herbivores defend or flee. The food chain is the gameplay; alpha predators are the apex.
  • Survive 24/7 hunger and thirst Dinosaurs need food and water to survive. Find water sources (streams, lakes); eat plants or other dinosaurs. Resource scarcity in late-game environments is real.
  • Grow through life stages Hatchling → Juvenile → Sub-adult → Adult. Growth takes hours of in-game time; faster on servers with growth multipliers. Each stage unlocks new abilities and stat ranges.
  • Death is the end Die and your dinosaur is gone. Respawn as a new character; choose a different species or start over with the same. The mortality drives careful play.
  • Nesting for reproduction Adult dinosaurs find mates, create nests, and raise hatchlings. Carry your bloodline through generations; some servers track lineages.
  • Open-world multiplayer survival Up to 100 players on a single server. Real dinosaurs (other players) hunt, ambush, defend territory. Coordination and species pack-bonding define top-tier play.

02 · Branches: Legacy vs Evrima

Two versions; one actively developed.

  • Legacy: the original branch The Isle’s original gameplay. Larger dinosaur roster (more species available), older mechanics, no longer receiving updates. Functional but in stasis.
  • Evrima: the current active branch Total overhaul launched as the new direction. Smaller initial roster, deeper mechanics, more dynamic combat. The future of the game.
  • Branch selection in Steam On Steam, right-click The Isle → Properties → Betas → select "evrima" branch. Default is Legacy; opt into Evrima for current development.
  • Migration plan Legacy will eventually be retired entirely. All development resources focus on Evrima. Plan your investment toward Evrima long-term.
  • Different mechanics, different feel Evrima combat is more responsive; Legacy combat is older-feeling. Evrima dinosaurs have more nuanced kits; Legacy is simpler.
  • Same Steam license Owning The Isle gives access to both branches. Switch between them freely; no separate purchase.
  • Server populations differ Most active servers and player communities are now on Evrima. Legacy still has dedicated players but smaller population.

03 · Playable Species by Size

27 playable dinosaurs in Evrima.

Small Dinosaurs Fast, agile, vulnerable
  • Dryosaurus (480 HP, 47 km/h, 40-min growth)
  • Hypsilophodon (small herbivore)
  • Compsognathus (compy)
  • Ornitholestes (small predator)
  • Pteranodon (flying, Legacy)
Bring
Quick reflexes for evading larger predators and willingness to play scavenger roles.
Take
Mobility advantage; quick growth times; gateway species for new players.

Small dinosaurs are stepping-stones. Quick to grow; use them to learn the game before committing to large species.

Medium Dinosaurs Balanced combat threats
  • Utahraptor (pack-pouncing predator)
  • Carnotaurus (mid-tier predator)
  • Maiasaura (herbivore)
  • Gallimimus (running herbivore)
  • Pachycephalosaurus (charge attacker)
Bring
Combat awareness and willingness to engage in real fights.
Take
Threatening enough to face most dinosaurs; mobile enough to escape apex predators.

Medium dinosaurs are the sweet spot for active gameplay. Most active player base; competitive PvP.

Large Dinosaurs Endgame; massive HP and damage
  • Tyrannosaurus Rex (8000+ HP, apex predator)
  • Giganotosaurus (alpha)
  • Stegosaurus (defensive tank)
  • Triceratops (charge tank)
  • Allosaurus (apex predator)
Bring
Patience for long growth times and willingness to face other apex players.
Take
Top of the food chain; territorial dominance; the prize for surviving to adult.

Large dinosaurs take hours to grow. Patience and skill required; one death wipes hours of progress. The endgame.

Mega-Sauropods Massive long-necks; defensive titans
  • Puertasaurus (12,000 HP, 6-hour growth)
  • Camarasaurus
  • Diplodocus
Bring
Patience for the longest growth times and willingness to play passive megaherbivore roles.
Take
Mass survival through sheer health; tail-whip defenses; ecosystem role as megaflora consumer.

Sauropods are the longest commitment in the game. Hours to grow; one of the most-impressive completions in The Isle.

04 · Notable Dinosaurs

A sampling across roles.

DinosaurTypeNotes
TyrannosaurusApex Predator8000+ HP, multi-tier muzzle/crush attacks, pin smaller targets. The flagship.
GiganotosaurusApex PredatorLarger than T-Rex; high damage; slower. Alpha predator class.
AllosaurusApex PredatorTop-tier carnivore; balance of speed and damage.
UtahraptorPack PredatorPounce mechanic; pack-friendly; team kills with allies.
TriceratopsDefensive TankCharge attack with horn; high HP; reliable defense for adult life.
StegosaurusDefensive TankTail-whip with thagomizer; deadly against pursuing predators.
PteranodonFlying (Legacy)Soar and glide; scout role; not in Evrima yet (planned).
CarnotaurusMid PredatorFast charge; smaller than apex predators but mobility advantage.
HypsilophodonSmall HerbivoreStepping-stone species; fast growth; learning gameplay.
MaiasauraMid HerbivorePack-friendly; care for young; cooperative gameplay.

05 · Growth Stages & Diet

From hatchling to adult; each stage has different needs.

  • Four growth stages Hatchling, Juvenile, Sub-adult, Adult. Each has different stat ranges; growth takes hours of real-time. Some servers accelerate growth multipliers.
  • Diet requirements Carnivores: meat (from kills or carcasses). Herbivores: plants (specific ferns, leaves, fruits). Some species are omnivorous; can eat both with reduced nutrition.
  • Specific diet needs Each species has preferred foods. Eating wrong species’ food reduces nutrition gain. Long-term well-being requires species-appropriate diet.
  • Water dependency All dinosaurs need water. Find rivers, lakes, and ponds. Some species are amphibious; others need water proximity but cannot swim.
  • Hunger drain rates Larger species have larger stomachs but eat more total. Hatchlings drain hunger faster proportionally; require frequent feeding.
  • Slope sliding (new) Recent update added slope-sliding mechanic. Steep hills cause dinosaurs to slide. Plan terrain navigation accordingly.
  • Speed by stage Smaller (younger) dinosaurs move faster relative to predators. Adult speeds are slower for the largest species; agility decreases with size.

06 · Nesting & Reproduction

Carry your bloodline through generations.

  • Adult mating Two adult dinosaurs of the same species can mate and produce eggs. Some species pair-bond; others mate opportunistically.
  • Egg incubation Eggs need to be incubated in a nest. Time varies by species; eggs can be lost to predation or environmental damage if unprotected.
  • Hatchling vulnerability Hatchlings are extremely vulnerable to adult predators and even larger juveniles. Hide in cover; rely on parents for defense.
  • Parental care Some species (Maiasaura, Tyrannosaurus) have explicit parental-care mechanics. Adult parents bring food and defend young.
  • Nesting grounds Specific map locations are designated nesting grounds. Better protection from environmental threats; high-traffic for predators looking for easy prey.
  • Mutation system Newly hatched dinosaurs can inherit Mutations from parents. Mutations affect stats slightly; rare mutations are server-bragging-rights items.
  • Elder System (planned) A planned mechanic where adult dinosaurs that survive long enough achieve Elder status with stronger stats. Specific implementation evolving.

07 · Hunting & Combat

Combat is the central interactive system.

  • Bite and tail attacks Most dinosaurs have light bite, heavy bite, and tail-whip attacks. Heavy attacks deal more damage but have longer recovery; tail-whips have stagger effects.
  • Pouncing (smaller predators) Utahraptors and similar small predators can pounce-latch onto targets. Riding the back of larger dinosaurs delivers continuous damage; slot-swap mechanic adds depth.
  • Pack hunting Group hunts are powerful. Multiple Utahraptors take down lone Allosaurs. Coordinate pack tactics with other players for kills above your weight class.
  • Defensive tail-whips Stegosaurus, Triceratops, and similar species have defensive tail/horn attacks. Effective against pursuing predators; mastery defines herbivore play.
  • Charge attacks Triceratops, Carnotaurus, Pachycephalosaurus have charge attacks. Sprint into target for high damage and stagger; deadly when timed well.
  • Bleed damage Many attacks apply Bleed (damage over time). Bleeding dinosaurs leave blood trails; predators can track wounded prey through the map.
  • Combat positioning Side and rear strikes deal more damage than head-on engagements. Mastering positioning beats relying on burst damage; mobile players outlast static ones.

08 · Maps

Spiro and Gateway are the active Evrima maps.

  • Spiro (Evrima main) The Evrima base map. Mixed biomes: forests, swamps, plains, hills, water bodies. The standard Evrima environment.
  • Gateway (April 2026) New map released April 2026. Migration mechanic and sanctuaries. Larger map with new biomes including redwood forest. The newest content.
  • Legacy maps The original Legacy branch had multiple maps (V3 of The Isle, others). Less actively played; for nostalgia or specific community-run servers.
  • Map progression Spiro remains the primary playground for Evrima; Gateway adds depth with sanctuaries and migration. Communities establish per-server gameplay norms.
  • Redwood biome Gateway map’s flagship area. Tall, dense forest with unique gameplay opportunities; ambush spots and cover.
  • Sanctuaries Designated safe zones on certain maps where combat is reduced. Useful for new players learning mechanics; not all servers honor sanctuaries.
  • Server-specific custom maps Some community servers run modified maps with extra content. Modding scene is small but active.

09 · Server Types & Modes

Official, community, and growth-modifier variants.

  • Official servers Maintained by Afterthought. Standard growth rates and rules; most-balanced experience.
  • Community servers (X games multiplier) Player-run servers with custom growth rates (often 2x-5x). Faster progression; less commitment per character; popular for casual players.
  • Hardcore mode (no growth modifier) Strict 1x growth; the original challenge. Hours-long commitments to single characters; smaller dedicated communities.
  • RP (roleplay) servers Strict roleplay rules: stay in character as your dinosaur, no meta-gaming, respect territory rules. Smaller communities; deep RP experiences.
  • PvE servers No or limited player-vs-player damage. Casual exploration; popular for new players learning species mechanics.
  • Hordetest servers Test servers for new patches. Try work-in-progress mechanics before they hit live; expect bugs.
  • Server hosting via providers XGamingServer, G-Portal, and others provide The Isle server hosting. Run your own private community; full control over rules and rates.

10 · Audio & Settings

Dinosaur audio cues are the survival meta.

  • Headphones essential The Isle’s audio is the survival meta. Distant roars indicate predator direction; smaller sound cues reveal prey movement. Quality stereo headphones save lives.
  • Master volume around 60–70 percent The Isle’s audio peaks during combat. Higher master volume than typical FPS to catch ambient predator sounds at long range.
  • Field of view 90–100 Wider FOV reveals more peripheral movement. The Isle benefits from awareness more than precision aim.
  • Mouse sensitivity tuning Mid-low sensitivity. The Isle’s combat is less twitchy than competitive FPS; positioning matters more than reflex aim.
  • Performance tuning The Isle is GPU-intensive at high settings. Reduce foliage and shadows for higher framerate in dense biomes.
  • Disable motion blur Off in the video menu. Saves clarity during chases and combat.
  • Verify after every patch Afterthought ships monthly DevBlog updates and patches. Five minutes of menu review after major patches prevents one bad session.

11 · Pro Tips

Compound habits across The Isle’s long survival arc.

  • Start small Don’t pick T-Rex as your first character. Start with smaller species (Hypsilophodon, Dryosaurus) to learn mechanics. Build experience before committing hours to apex predators.
  • Stay near water Water is essential. Spawn near rivers and lakes; stay near them as you grow. Dehydration kills slowly but reliably.
  • Group for safety Pack-friendly species (Utahraptors, Maiasaura) benefit from real coordination. Find players of your species; team up for mutual defense.
  • Run from predators above your weight class A juvenile herbivore cannot beat an adult predator. Recognize threat levels; flee aggressively early.
  • Use terrain Cover, hills, water, dense foliage all give tactical advantage. Don’t fight in open ground when terrain offers better options.
  • Listen to audio Distant roars, footsteps, and water splashing all reveal information. Walk slowly; listen often. Audio awareness saves more lives than combat skill.
  • Embrace the long game The Isle is patient. A T-Rex character represents hours of investment; treat each character as a story with stakes, not a respawn.