Mesozoica
Early access since Jan 2018
Mesozoica - A full featured dinosaur theme park tycoon simulator in which you focus on the construction and management of your dinosaur wonderland. From choosing your starting company to your prime attraction, everything lies in your hands.
21% positive · 584 reviews
Not yet
In early access, content planned but development status unclear
High confidence
Content Planned
Development Uncertain
Not yet
In early access, content planned but development status unclear
High confidence
Content Planned
Development Uncertain
Where to buy
Steam $0.99
Can't confirm — worth a look
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Evaluation
Mesozoica entered Steam Early Access on January 2, 2018, with an acknowledged rough launch. The developer, Underdog Interactive, posted actively through January, February, March, and early April 2018, describing a number of significant improvements in progress: a full UI overhaul, terraforming, park management progression, a company and employee system, board confidence mechanics, Steam Workshop integration, new dinosaur species, improved AI, and more. The April 2, 2018 post ("Progression of and managing your park") was the last official communication from the developer — describing systems still in development and promising more information "later this week."
That follow-up never came. No further patches, announcements, or developer statements have appeared since April 2, 2018. The game remains listed on Steam in Early Access, still purchasable, with a 21% positive review score. None of the major features described in the roadmap posts — park progression, company/employee management, the terraforming update, Steam Workshop — appear to have ever shipped based on the available record. The developer has been completely silent for over eight years, with outstanding commitments that were never fulfilled.
Evidence
Developer's last post describes park progression and management features still under development, promises more information 'later this week' — a follow-up that never came. This is the final communication from Underdog Interactive.
Developer outlines upcoming terraforming, performance improvements, and UI overhaul as in-progress work, not yet shipped. Promises continued development.
Media
Details
Developer
Publisher
Underdog Interactive
Achievements
—
Platform
Windows
Controller
—
Steam Deck
Not rated
Players
Single-player
About this game
Mesozoica - A full featured dinosaur theme park tycoon simulator in which you focus on the construction and management of your dinosaur wonderland. From choosing your starting company to your prime attraction, everything lies in your hands.
Animals: From the Mesozoica to Cenozoic era, prehistoric animals such as the Tyrannosaurus Rex and lesser known Mamenchisaurus will be waiting for you to adopt them into your park.
Babies: Every dinosaur starts out as a tiny little critter, bonding you to your dinosaur from the start. Watch it go through it’s life stages and explore your world.
Control: By taking control of your animals you can experience what it’s like to be a dinosaur! Attack, eat and drink to keep your dinosaur’s needs in control.
Modular building system: Let your imagination run wild with the modular building system, in which you can create reusable blueprints to use in your park. Nothing is too crazy, amaze yourself!
Blueprints: For those who want to jump straight into the game, a wide range of blueprints will be available to use, so you can focus on what you think is important to you.
Customize: Almost everything in Mesozoica can be customized to your liking, may it be color, texture or size! You can really make the park of your dreams.
DNA System: With over 14 animals in the game you can use the state of the art world map to find, purchase and extract DNA from dinosaur fossils. Next to the wide range of dinosaurs there are more than 140 skins ready for you to explore!
Black market: Don’t want to wait and have better things to do than digging? For the right price you can purchase your fossils straight from the black market, guaranteeing success.
Dig site: The old fashioned way of getting dinosaur DNA. Select your favorite digsite, send your digging squad and wait for them to find your new dinosaur!
Community creations: Get creative and use the modular building system to build, share and download blueprints made by the community and Mesozoica developers, giving you more freedom in your own park.
Import: Download other blueprints from your friends and import them into your park, giving you more content in a breeze.
Export: Created a beautiful dinosaur exhibit? Export it and send it over to your friends, allowing you to share your creations with the world!
Animals: From the Mesozoica to Cenozoic era, prehistoric animals such as the Tyrannosaurus Rex and lesser known Mamenchisaurus will be waiting for you to adopt them into your park.
Babies: Every dinosaur starts out as a tiny little critter, bonding you to your dinosaur from the start. Watch it go through it’s life stages and explore your world.
Control: By taking control of your animals you can experience what it’s like to be a dinosaur! Attack, eat and drink to keep your dinosaur’s needs in control.
Modular building system: Let your imagination run wild with the modular building system, in which you can create reusable blueprints to use in your park. Nothing is too crazy, amaze yourself!
Blueprints: For those who want to jump straight into the game, a wide range of blueprints will be available to use, so you can focus on what you think is important to you.
Customize: Almost everything in Mesozoica can be customized to your liking, may it be color, texture or size! You can really make the park of your dreams.
DNA System: With over 14 animals in the game you can use the state of the art world map to find, purchase and extract DNA from dinosaur fossils. Next to the wide range of dinosaurs there are more than 140 skins ready for you to explore!
Black market: Don’t want to wait and have better things to do than digging? For the right price you can purchase your fossils straight from the black market, guaranteeing success.
Dig site: The old fashioned way of getting dinosaur DNA. Select your favorite digsite, send your digging squad and wait for them to find your new dinosaur!
Community creations: Get creative and use the modular building system to build, share and download blueprints made by the community and Mesozoica developers, giving you more freedom in your own park.
Import: Download other blueprints from your friends and import them into your park, giving you more content in a breeze.
Export: Created a beautiful dinosaur exhibit? Export it and send it over to your friends, allowing you to share your creations with the world!
Are these done yet?
Last evaluated Jun 27, 2026
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