Progression and Rebirth Loop - Grow a Chicken Fighter Wiki
Plan your upgrades, use fusion to transfer traits, and learn when and how to Rebirth, the reset that turns permanent bonuses into faster runs.
Overview
Progression in this game is a cycle: earn Cash, upgrade the Recycler and Feeder, push the Tower, fuse spare chickens for better traits, and eventually Rebirth to restart with permanent bonuses. Because Rebirth keeps your chicken collection while resetting your run, each cycle should reach the previous high point faster than before.
Rebirth Video Guide
This video shows attack growth and a practical Rebirth: reaching the required Tower floor with a leveled chicken, resetting, then rebuilding with the permanent money bonus intact. It is the clearest demonstration of the Rebirth loop and how bonuses stack across runs.
How Progression Works
All progression flows from Cash, which you spend on Recycler upgrades, Feeder upgrades, Coop slots, eggs, and fusion costs. The community consensus is to upgrade the Recycler and Feeder first for income, then push Tower progression, and save Rebirth for when the run slows down.
When choosing between upgrades, ask which one fixes your current bottleneck. If money is slow, upgrade the Recycler. If your chicken loses fights, upgrade the Feeder. If you have a strong fighter but no clear next step, it is probably time to fuse or to prepare a Rebirth.
Fusion doubles as a progression tool: once you have surplus chickens, feed low-value duplicates into a base you want to keep. You can even lock a useful trait on the donor so it transfers, turning, for example, a chicken with a 100% Thunder Egg laying trait into an egg factory.
Where Money Goes
These four systems consume nearly all your Cash, so understanding what each one does is the first step of progression. Keep them balanced and revisit whichever one is currently your bottleneck, because the slowest link is always the one worth upgrading next.
Recycler
Higher scrap value means a faster money loop; usually the first priority.
Feeder
Levels your active chicken so attack and health keep up with the Tower.
Coop and eggs
More chicken slots and egg storage, plus the eggs you actually hatch.
Fusion
Turns duplicate chickens into stronger fighters and transfers traits.
Rebirth, Explained
Rebirth requirements and exact multiplier values are community-reported and differ across sources, so treat the specifics below as expectations to confirm in-game before you plan around them. The broad strokes, what resets and what you keep, are consistent everywhere and are the part that matters most.
| What Happens | Details |
|---|---|
| Coop resets | Returns to its beginning state, so you rebuild capacity from scratch |
| Your level resets | Chicken level returns to 1 and current-run money is cleared |
| Chickens are kept | Your collection does not disappear, so you can rebuild quickly |
| Permanent bonuses | Extra Cash and corn earnings, higher egg drop rates, and a raised level cap each Rebirth |
| Unverified specifics | The required Tower floor is reported anywhere from 15 to 30, and multipliers from 2x to stacking near 1,000% |
Rebirth Prep
Opinions differ on timing: one popular guide says to Rebirth the moment it becomes accessible, while another warns not to hit it immediately. Most agree on preparation, spending everything that would reset before triggering it, and treating the permanent bonus as the real reward rather than the reset itself.
After the Rebirth, rebuild the Recycler and Feeder immediately so the next run starts with a working income loop instead of an empty farm. Your kept chickens then have a leveled economy to push through the Tower, and every subsequent Rebirth goes faster.
Check the requirement
Open the Rebirth panel and read both the floor requirement and exactly what resets before you commit.
Spend or bank resources
Spend any Cash or levels that would be wasted, and leave an available reward unclaimed if you can claim it after the Rebirth.
Trigger the Rebirth
Start over knowing your chicken collection survives, so the next run begins with fighters instead of empty hands.
Rebuild fast
Immediately rebuild the Recycler and Feeder, then use the permanent money bonus to climb toward the next Rebirth.
Fusion as Progression
Fusion is the mid-game power lever. Pick a base chicken you want to keep and a donor carrying the trait you need, then lock only the field you want copied. Unlocked fields are not guaranteed to transfer, so check the fusion preview before spending, as the fusing guide details.
Sources directly observed strong fighters such as the Astro Chicken, Commando Rooster, Tsunami Hen, and Founder Rooster, but no verified full tier list exists. As a rule of thumb, your best fighter is the one with the best mix of combat strength and useful traits for where you are in the run.
Frequently Asked Questions
What is Rebirth in this game?
Rebirth resets your coop, chicken level, and current-run money, but keeps your chicken collection. In exchange you gain permanent bonuses to Cash and corn earnings, egg drop rates, and your level cap.
When should I Rebirth?
Sources disagree on timing, but most agree to prepare first: spend resources that would reset, keep a reward unclaimed if possible, then Rebirth and rebuild the Recycler and Feeder immediately.
What do I keep when I Rebirth?
Your chicken collection stays with you, which is why rebuilding is fast. Current-run money, coop upgrades, and levels reset, while the permanent bonus from each Rebirth stacks on the next run.
What is the Tower requirement for Rebirth?
You must climb the Tower a certain number of floors, but sources conflict: community reports range from floor 15 to floor 30, some with a level 40 chicken. Confirm the exact requirement in your Rebirth panel.
Does fusion reset my chicken's level?
Yes. Fusing two chickens costs Cash, boosts and rerolls stats, but resets the chicken's level. Always preview the fusion first and remember that unlocked fields are not guaranteed to copy.
Can I transfer traits through fusion?
Yes, lock the trait you want on the donor before fusing. Sources show a 100% Royal Egg trait fused onto an Astro Chicken and a 100% Thunder Egg trait producing that egg for you.
Is Rebirth possible without paying?
Yes. Guides report reaching high Rebirth levels and endgame content without premium purchases. Rebirths are also described as the main free-to-play money-farming loop.