Planet Zoo 2 Conservation Credits Guide: FEN Economy Explained

Every zoo in Planet Zoo 2 runs two economies at once. Cash pays for paths, habitats, staff and shops. Conservation Credits — the currency of the Fauna and Ecosystems Network, or FEN, the organisation that employs you as its newest Conservation Coordinator — pay for animals themselves. Frontier has confirmed the broad mechanics of this system; this guide explains what is officially verified, where the community is still testing, and how to think about credits like an economist rather than a tourist.

What Are Conservation Credits in Planet Zoo 2?

Quick answer: Conservation Credits are the game’s second currency, earned by releasing well-cared-for animals — through Release Groups into Wildlife Reserves or via quick release — by completing Conservation Projects, and, in online Franchise mode, through animal trading and Community Challenges. You spend them to adopt animals into your zoo, especially higher-tier species that cannot simply be bought with cash.

In the original Planet Zoo, releasing an animal to the wild was a single abstracted transaction that paid out some credits and said goodbye. Planet Zoo 2 turns that transaction into a full production chain, which is exactly why the credits economy deserves its own guide: you are no longer handed currency for clicking a button, you are building a conservation machine that manufactures credits as a byproduct of excellent animal care.

How Do You Earn Conservation Credits? The Release Chain

The official loop has four links, and each one feeds the next:

1. Breed. Every credit you will ever earn starts with a successful breeding program. Genetic diversity matters here, because it shows up again at the release gate.
2. Research. Species Research raises what your zoo knows about an animal. Wildlife Reserves extend this: Research Networks built from a Research Outpost, Observation Platforms, Camera Traps and Acoustic Monitors open Research Gates and unlock higher levels of Species Research. Our Wildlife Reserves guide covers the network mechanics in detail.
3. Thrive. Release Groups have requirements — official examples include thresholds of longevity, fertility and genetic diversity. Frontier has been explicit that this is why day-to-day welfare matters: animals can only graduate to the wild if your animal welfare program kept them healthy and fertile for years.
4. Release. Assemble eligible animals from Animal Storage into a Release Group and choose one of two doors. Releasing into a Wildlife Reserve pays credits and advances the reserve’s ecosystems, biodiversity rating and research. Quick release pays immediate credits with no follow-up. Same currency, different long-term value.

How much a release pays depends on the animal. Frontier’s confirmed modifiers: animals with a higher interest rating, animals in their prime, and animals with high-rated genes all earn more credits. Rarer, more endangered species also pay more per release, per Frontier’s published guidance. Specific credit figures per species are still under community testing — treat any exact number you see online as provisional until the community’s datasets settle.

Conservation Projects: The Second Income Stream

Credits also flow from Conservation Projects, FEN-partnered efforts around the globe. A project asks you to invest cash, staff time, animals and Release Groups; assigned staff leave your zoo to work in the field for a while. Projects most frequently reward Conservation Credits, and some partner institutions gift you animals or finished Release Groups, claimed through Gifts in Animal Trading.

Read this as a currency exchange: surplus cash and spare staff hours convert into the currency that actually gates your collection. A zoo that is cash-rich but credit-poor should be running projects constantly.

What Do Conservation Credits Actually Buy?

Two things, both important:

• Animals. Conservation Credits are how you adopt animals into your zoo, and the majority of animals require credits rather than upfront cash — the more desirable the species, the more true this becomes. Cash builds the building; credits fill it with life.
• Project requirements. Conservation Projects themselves consume credits alongside your other investments, so the economy has a sink as well as a faucet.

The strategic consequence: your animal wishlist is funded by your breeding program, not your gift shop. A beautiful broke zoo still cannot afford a rare wolf.

Credit Engines vs Flagship Species

Think of each species as a credit-production line with a different conversion rate:

• Engines are common, fast-breeding, group-living animals with short intervals between births. Each individual release pays modestly, but the line never stops, and their modest credit prices make them cheap to start. They are your factory floor.
• Flagships are the slow, prestigious endangered species. The giant panda is the archetype: a very long interval between births means each cub is an event, not a unit of production — but rare, high-interest, well-bred individuals pay far more per release and anchor Community Challenges.

Frontier’s own modifier list tells you how to run both at once: keep engine species cycling to fund daily credit costs, and run one flagship program in parallel as your treasury’s big-ticket deposit. For a worked example of a pack-living flagship, see the African wild dog page.

Conservation Credits Across the Three Game Modes

• Career is where FEN’s systems are taught scenario by scenario — credits arrive as part of scripted conservation beats. For the walkthrough of that journey, see our Career mode guide; this page is about the economy those scenarios introduce.
• Franchise is the economic main arena. It adds two credit sources that offline modes do not have: selling animals to other players via Animal Trading, and Frontier’s rotating Community Challenges. Two rules shape everything here: Franchise and offline modes do not share a credit balance (each offline zoo keeps its own), and community testing so far reports a starting balance of 300 credits in Franchise. Plan your first adoption accordingly — details in the Franchise mode guide.
• Sandbox removes the constraint entirely: the default and creative presets grant unlimited Conservation Credits, making the release chain a creative toy rather than an economy.

The Short Version

Credits are manufactured, not found. Breed broadly, research deeply, keep animals thriving, release deliberately, and convert spare cash into projects. Run a fast common-species engine for steady income and one flagship program for the big payouts, and remember that in Franchise your credit balance lives and dies by trading and challenges. Treat every per-species number as provisional until community testing confirms it — the mechanics are official, the spreadsheets are still being written.