Odds
Here are the odds of everything that comes out at random in the game. No random draw can be bought, with real money or with gems: where gems come into it (the Golden Nest and the Incubator) is written below.
Nest hatching
Two adult animals of the same species placed on the farm lay an egg in the Nest. What hatches is drawn when the egg starts and revealed when it hatches: trying again does not change the draw. The egg costs coins, which you earn by playing.
Gems don't buy a hatching. They touch two things: the Golden Nest build (level 4) can be finished sooner with gems, and the Golden Nest multiplies the chances of rare, epic and legendary by 2; the Incubator's extra slots (1,000 and 2,500 gems, at most 2 per biome) let more eggs hatch at once, but every egg has the same odds.
Nest at level 1, 2, 3
| Grade | Chance |
|---|---|
| common | 88% |
| rare | 10% |
| epic | 1.8% |
| legendary | 0.2% |
Nest at level 1, 2, 3, both parents rare or better
| Grade | Chance |
|---|---|
| common | 63% |
| rare | 35% |
| epic | 1.8% |
| legendary | 0.2% |
Golden Nest (level 4): rare, epic and legendary × 2
| Grade | Chance |
|---|---|
| common | 76% |
| rare | 20% |
| epic | 3.6% |
| legendary | 0.4% |
Golden Nest (level 4): rare, epic and legendary × 2, both parents rare or better
| Grade | Chance |
|---|---|
| common | 26% |
| rare | 70% |
| epic | 3.6% |
| legendary | 0.4% |
Within a grade every variant of the species is equally likely: at common grade you get the species or one of its tints, at the other grades one of that grade's variants. If a species has no variant of a grade, that grade becomes the grade below.
Species
Per species (Nest at normal levels, common parents): the chance of each grade and, below it, how many variants share it equally. The other per-species tables are in the file probabilita.json.
| Species | common | rare | epic | legendary |
|---|---|---|---|---|
| Compy | 88%4 | 10%4 | 1.8%3 | 0.2%2 |
| Baby tricheratopo | 88%4 | 10%4 | 1.8%3 | 0.2%2 |
| Oviraptor | 88%4 | 10%4 | 1.8%3 | 0.2%2 |
| Anchilosauro | 88%4 | 10%4 | 1.8%3 | 0.2%2 |
| Pterodattilo sul trespolo | 88%4 | 10%4 | 1.8%3 | 0.2%2 |
| Stegosauro | 88%4 | 10%4 | 1.8%3 | 0.2%2 |
| Parasaurolofo | 88%4 | 10%4 | 1.8%3 | 0.2%2 |
| Notosauro | 88%4 | 10%4 | 1.8%3 | 0.2%2 |
| Archelon | 88%4 | 10%4 | 1.8%3 | 0.2%2 |
| Pachicefalosauro | 88%4 | 10%4 | 1.8%3 | 0.2%2 |
| Dimorfodonte | 88%4 | 10%4 | 1.8%3 | 0.2%2 |
| Ittiosauro | 88%4 | 10%4 | 1.8%3 | 0.2%2 |
| Ranforinco | 88%4 | 10%4 | 1.8%3 | 0.2%2 |
| Archaeopteryx | 88%4 | 10%4 | 1.8%3 | 0.2%2 |
| Plesiosauro cucciolo | 88%4 | 10%4 | 1.8%3 | 0.2%2 |
| Brachiosauro cucciolo | 88%4 | 10%4 | 1.8%3 | 0.2%2 |
| Pteranodonte | 88%4 | 10%4 | 1.8%3 | 0.2%2 |
| Spinosauro | 88%4 | 10%4 | 1.8%3 | 0.2%2 |
| Baby T-rex | 88%4 | 10%4 | 1.8%3 | 0.2%2 |
| Quetzalcoatlus | 100%1 | —0 | —0 | —0 |
Mystery egg
It comes from the weekly challenge, for free: it can't be bought. It opens straight away. Common = 100 coins; rare, epic or legendary = a special seed of that grade, among those of your level or below and of the zones you own. If there is no seed of that grade at your level yet, it goes down a grade (below rare: 100 coins).
Every egg
| Grade | Chance |
|---|---|
| common | 80% |
| rare | 17% |
| epic | 2.8% |
| legendary | 0.2% |
Laboratory: Selected Seeds
After the "Selected Seeds" research (Laboratory, level 9, paid in coins), every harvest can give a special seed of the same crop. With no epic variant it goes down to rare; with no variants, nothing.
Every harvest
| Grade | Chance |
|---|---|
| nothing | 96.5% |
| rare | 3% |
| epic | 0.5% |