Prehistoric Farm is a dinosaur ranch simulation on Roblox developed by Project Mirvy. In this experience, you set sail from your home base across islands themed around geological periods, dig up prehistoric fossils, and trade completed fossil sets for eggs at Dr. Ivy's DNA Lab. From there, you warm eggs in incubators, care for the hatchlings on your personal ranch, and raise them into massive companions you can ride across the map.
Starting out can feel overwhelming when balancing shovel gates, boat travel times, and animal upkeep. This guide breaks down the core loop step by step, detailing confirmed tool prices, incubation mechanics, ranch care requirements, and exploration opportunities.
The Core Gameplay Loop: Dig, Trade, Hatch, and Ride
The entire progression system in Prehistoric Farm is built upon a continuous gameplay chain. Every system on your ranch and out in the open sea connects directly back to this loop:
- Travel to an Excavation Island: Launch your boat from the spawn dock and head toward a designated geological period island.
- Excavate Dig Sites: Use your shovel on marked dirt patches, aiming for the green zone on the interaction meter to recover fossils and coins.
- Assemble a Creature's Fossil Set: Gather all the required fossil fragments for a specific creature.
- Trade for an Egg: Bring the completed set to Dr. Ivy at the DNA Lab on the home island to receive a dinosaur egg.
- Incubate and Hatch: Place the egg inside an open incubator slot, wait out the timer, and claim your newborn at the hatchery.
- Feed on the Ranch: Place your dinosaur in a pen and keep its belly more than half full so it steadily grows into an Elder.
- Ride Your Dinosaur: Once mature, mount your dinosaur to explore the ranch and travel across islands faster.
Coins earned while digging or through bonus finds fund the food needed for your herd and the tool upgrades needed to reach advanced islands.
Fossil Excavation and the Green-Meter Timing
Excavation is your primary source of both fossils and steady coin income. Dig spots are visible mounds scattered across island terrain.
The Excavation Mechanic
To begin digging, equip your shovel, approach a dig spot, and hold down the interaction button. A sliding gauge will appear on your screen. Release your input right as the indicator lands inside the green section of the meter.
Hitting the green zone registers as a clean hit, which developers and recorded tests indicate grants better yields. A successful dig can produce:
- A specific fossil belonging to that island's geological set (such as Hallucigenia or Pikaia in the Cambrian area).
- Raw coins directly deposited into your balance.
- Buried treasure, which provides a larger coin payout.
- A "No fossil" miss.
Empty digs are a standard part of the game's drop rates rather than a glitch. Players should expect multiple dry swings before securing a specific piece.
Nighttime Glowing Dig Sites
When the in-game cycle shifts to night, certain dig spots begin to glow, often accompanied by an on-screen prompt to locate them. Digging at these glowing sites during recorded sessions yielded bonus coins alongside fossil finds, making nighttime exploration especially valuable when saving up for shop upgrades.
Dr. Ivy’s DNA Lab, Incubation, and Ranch Care
Carrying fossils in your inventory does not automatically give you a dinosaur. You must process complete creature sets at the home hub before placing anything on your ranch.
Trading at the DNA Lab
Once you have gathered all the pieces for a single creature, return to the home island and speak with Dr. Ivy inside the DNA Lab. The collection menu tracks period categories (such as Cambrian, Devonian, Triassic, Jurassic, Cretaceous, and Cretaceous Seas).
In gameplay sessions, completing a specific creature's requirement (such as five to six fossils in the starter sets) enables the exchange. Trading the set hands you a viable egg. Note that surplus fossils from other animals do not count toward completing a different creature's set.
Incubation and the Hatchery
Take your new egg directly to the incubator room:
- New players begin with two unlocked incubator slots available for free. Additional slots exist in the room or via game passes.
- Incubation runs on real-time countdowns. Recorded gameplay shows timers ranging from roughly 1 minute for common creatures, 2 minutes and 30 seconds for uncommon finds like Tiktaalik, up to 5 minutes or longer for rarer species.
- When the timer reaches zero, head to the adjacent Hatchery to claim your newborn.
The 50% Belly Feeding Rule
After collecting your newborn from the hatchery, place it inside your ranch. Newborn dinosaurs are tiny and require consistent upkeep to reach adulthood.
The official rule governing growth states that a dinosaur's belly must remain over half full for growth to continue. If hunger drops to 50% or below, the creature stops aging until fed.
To maintain growth:
- Purchase feed from the food stall on the home island.
- Match the food to your animal's diet (such as meat for carnivores or vegetables for herbivores).
- Approach the animal in its pen and feed it to keep the hunger gauge well above the halfway mark.
- Watch your budget: maintaining multiple growing dinosaurs raises your daily food expenses, meaning you will need regular digging runs to sustain your herd.
Once your dinosaur finishes growing through its growth stages into a huge Elder, you can mount and ride it as an active companion.
Shovel and Boat Progression: Expanding Your Range
You cannot access every island right away. Two main progression gates determine where you can travel and what you can unearth: shovel tier and boat size.
Shovel Tiers and Geological Periods
Your starter shovel can only break ground in the Cambrian area. Attempting to dig in later zones like the Devonian, Triassic, or Jurassic islands with low-tier tools results in an error stating that a better shovel is required.
| Shovel Tier | Cost | Digging Access | Notes |
|---|---|---|---|
| Starter / Wooden Shovel | Free (Default) | Cambrian Island | Basic tool; standard digging speed. |
| Bronze Shovel | 2,500 Coins | Devonian Island | Unlocks Devonian fossil sets like Tiktaalik. |
| Next Upgrades (Silver / Iron / Titanium) | 12,000+ Coins (Iron documented around 50,000) | Triassic, Jurassic, Cretaceous | Higher tiers widen green timing bars and increase luck. |
Prices for advanced shovels above the Bronze tier reflect recorded observations from launch-week builds and community reports; players should always verify live shop costs in-game before committing coins.
Boat Tiers and Navigating Waterways
Boats are docked at the home island and dig areas, allowing you to cross the open ocean. Your starting dinghy is free and carries you to nearby islands in under a minute, but moves slowly.
- Next Boat Purchase: Recorded at 4,000 coins at the home island dock shop (named the Banks Dory rowboat in catalog data).
- Advanced Vessels: Higher-tier boats, such as motorboats, cost substantially more (documented community figures list options ranging from 60,000 up to 300,000 coins) and provide higher top speeds and extra passenger seating.
- Aquatic Mount Shortcut: Players who raise an aquatic dinosaur can ride it across the water, serving as a functional alternative to purchasing an upgraded boat early on.
Always look for visual landmarks, such as the waterfall near spawn, to guide yourself back to the DNA Lab when sailing manually.
Open Sea Activities: Fishing and Island Encounters
While traveling between dig sites, the ocean offers several side activities to fill time between incubation countdowns.
Ocean Fishing
Fishing is an accessible secondary activity that requires minimal entry investment:
- Purchase a basic fishing rod (costing 150 coins at the dock) and bait (sold in small packs, such as 5 coins for 5 casts).
- Cast your line into open water. Time your cast for a clean throw, then hook incoming fish.
- Verified catches include mackerel, sardines, puffer fish, and swordfish.
- Selling fish provides a small income stream (typically 5 to 10 coins per basic fish), though some players choose to keep fresh catches as potential feed for meat-eating dinosaurs.
- Community guides note that the Cretaceous Seas collection includes rare eggs acquired through fishing rather than standard land excavation.
Sunken Grotto and Mosasaurus Encounters
The official game description lists two high-end marine encounters:
- Sunken Grotto: An area where players can slip in to steal marine reptile eggs.
- Mosasaurus World Boss: A cooperative ocean encounter where players team up to fight a massive Mosasaurus using spears.
Exact equipment prerequisites, spear shops, and respawn cycles for the Mosasaurus fight have not yet been formally documented in official patch notes, so players should treat these as late-game group objectives to explore once their core ranch is established.
Beginner Tips for Faster Progress
To make your first hours in Prehistoric Farm efficient, keep these practical tips in mind:
- Do Not Leave During Incubation: Use the 2-to-5-minute egg timer productively. Fish right off the dock near the DNA Lab or run a quick digging loop on Cambrian Island rather than standing idle.
- Focus on One Fossil Set at a Time: An inventory scattered with one fragment from four different animals will not get you an egg. Stay on one island until you have gathered all required pieces for a single species.
- Redeem Promotional Boosts: Developers occasionally release codes following updates or maintenance. Entering reported community codes can grant temporary 2x luck potions or starter coin bundles that immediately cover the 2,500-coin Bronze shovel hurdle. Check the game's settings or codes menu and verify group membership requirements.
- Prioritize Shovels Over Luxury Boats: While a slow boat is inconvenient, the starter boat can still physically reach nearby islands. A low-tier shovel completely prevents you from digging once you arrive. Spend your first major coin savings on shovel upgrades first.
- Stock Up on Feed Before Expanding: Do not hatch multiple eggs back-to-back if your coin balance is near zero. Keep a buffer of at least a few hundred coins to buy meat or vegetables so your newborns never stall out below the 50% hunger threshold.
Frequently Asked Questions
Why has my dinosaur stopped growing?
Under official game mechanics, dinosaurs only grow when their hunger gauge stays above 50%. If growth stops, visit the food vendor, purchase the appropriate diet item (meat or vegetables), and feed your animal until its belly is comfortably above the halfway mark.
Where do I find Dr. Ivy?
Dr. Ivy is located inside the DNA Lab on the main home island, situated near the docks, hatchery, and ranch pens.
How do I unlock riding?
Dinosaurs become rideable once they mature from tiny Newborns into fully grown Elders. Keep them consistently fed on your ranch to advance through their life stages until the mount prompt appears.
Can I dig on Jurassic or Triassic islands with the starter shovel?
No. Dig sites on later islands require higher-tier tools. You must purchase tool upgrades, beginning with the Bronze Shovel for 2,500 coins, before the game will let you unearth fossils outside the Cambrian zone.
