- Strength for Eggs upgrade priority: Fix your current bottleneck first, not the cheapest option.
- Early game: Push Strength to break walls, then reinvest Cash into Animal income.
- Mid game: Animal Upgrades and Animal Capacity give the best returns per Cash spent.
- Rebirth timing: Rebirth only when the permanent Cash multiplier beats your current run's progress.
- Golden rule: Strength, Eggs, Animals, and Cash must all progress together.
Upgrade Priority Overview: What to Upgrade First
In +1 Strength for Eggs, every Cash decision either speeds up the core loop or wastes it. The loop is simple: train Strength, break walls, unlock areas, collect Eggs, hatch Animals, earn Cash, and upgrade. Because each system feeds the next, the best "first upgrade" depends entirely on which part of the loop is currently slowing you down.
The table below breaks down the four main upgrade categories from the game and how they should rank in a typical run:
| Upgrade Type | What It Does | Best Time to Buy | Priority |
|---|---|---|---|
| Animal Upgrades | Improves value and performance of Animals | When Animals are your main Cash source | ★★★★★ |
| Animal Capacity | Lets more Animals generate Cash at once | When capacity blocks you from using new Animals | ★★★★☆ |
| Base Expansion | Expands base space and progression capacity | When your base limits Animal setup growth | ★★★☆☆ |
| General Progression | Broad efficiency boosts across the loop | After solving your current bottleneck | ★★★☆☆ |
Income First
- Animal Upgrades raise Cash per Animal
- Scales into offline earnings
- Best early-mid game purchase
Capacity Second
- Animal Capacity activates unused Animals
- Multiplies total passive income
- Buy when you have Animals waiting
Space Third
- Base Expansion supports larger setups
- Enables long-term growth
- Buy only when base limits you
Before spending Cash, ask one question: "What is stopping me right now?" If walls stop you, train Strength. If income stops you, upgrade Animals. If Animals sit unused, buy Capacity. Spend on the bottleneck, never on the cheapest button.
Early Game: Strength Before Everything
The opening stage of any run should prioritize Strength training over Cash upgrades. Every train gives +1 Strength, and Strength is the stat that breaks through the walls blocking new areas. New areas mean better Eggs, which mean stronger Animals, which mean more Cash. Upgrades bought too early only enhance a small income base.
Follow this early-game sequence:
| Stage | Action | Goal |
|---|---|---|
| 1 | Train Strength continuously | Build enough power for the first walls |
| 2 | Test nearby walls as checkpoints | Learn your current Strength ceiling |
| 3 | Break through and enter a new area | Access better Eggs |
| 4 | Collect and hatch Eggs | Start your Animal collection |
| 5 | Let Animals generate Cash | Build your first real income stream |
Do not dump all your early Cash into upgrades before you have a stable Animal collection. A strong upgrade on a weak income base barely moves your progress, while one broken wall can unlock an entire new area of better Eggs.
Step-by-Step: Your First 5 Upgrades
Once your Animals start producing Cash reliably, follow this order for your first meaningful purchases. This sequence assumes a fresh run with a small but growing Animal collection.
Confirm Animal Income Is Flowing
Before buying anything, let your Animals generate Cash for a while, including offline earnings. This confirms your income baseline and shows how much Cash you can realistically spend.
Buy Your First Animal Upgrade
Improve your most valuable Animals. Higher Animal output directly increases the Cash generated by your whole collection, including while you are offline.
Expand Animal Capacity
If you have hatched Animals that cannot yet contribute, Capacity is your best next buy. More active Animals means a larger total passive income.
Return to Strength Training
Use the improved income to support faster Strength progression toward the next wall. Do not neglect training while upgrading.
Expand Base When It Limits You
Only invest in Base Expansion when your existing space genuinely blocks further Animal setup growth. Otherwise, keep cycling between Animals, Capacity, and Strength.
Players who rotate between training, upgrading Animals, and expanding capacity consistently outpace players who only train or only upgrade. The loop is the strategy.
Mid Game: Income Scaling and Rebirth Decisions
By mid game, your Animal collection should be your main engine. Replace weaker early Animals as your access to better Eggs improves, and keep upgrading the Animals that drive your income. This is also when Rebirth enters the decision.
Rebirth resets your accumulated Strength in exchange for a permanent Cash multiplier. The multiplier applies to your future runs, making rebuilding much faster than the first time.
| Situation | Recommended Action |
|---|---|
| Walls feel far away and income is rising | Keep upgrading Animals and Capacity |
| Current run progress has stalled | Check the Rebirth reward multiplier |
| Multiplier clearly speeds up rebuilding | Rebirth and reset Strength |
| Multiplier is only marginal | Keep pushing the current run first |
After a Rebirth, the recommended rebuild order is:
| Phase | Focus | Why |
|---|---|---|
| Rebuild Strength | Train to re-reach earlier walls quickly | Areas unlock faster with multiplier-boosted Cash |
| Rebuy Animal Upgrades | Income upgrades are cheaper relative to boosted Cash | Multiplier makes every purchase more effective |
| Re-expand Capacity | Reactivate your Animal collection | Passive income returns quickly |
| Push further | Reach areas beyond your previous best | Each Rebirth should extend your ceiling |
Rebirthing with low Strength progress wastes the reset. Push deep enough into your current run to collect useful Eggs and Animals first, then Rebirth so the multiplier meaningfully shortens the rebuild.
Progression Checklist and FAQ
Use this checklist to keep your run balanced across all systems. If several boxes stay unchecked for long, that is where your bottleneck lives.
Upgrade Priority Milestones:
- Break through the next wall blocking a new area
- Hatch Eggs from your latest unlocked area
- Buy at least one Animal Upgrade per income stage
- Expand Animal Capacity whenever Animals are left unused
- Evaluate Rebirth only after income has plateaued
Q: In Strength for Eggs, what should I upgrade first as a new player?
As a new player, upgrade nothing at first. Train Strength, break the early walls, collect Eggs, and hatch Animals to establish an income base. Your first real purchase should be an Animal Upgrade once Animals are reliably generating Cash.
Q: Are Animal Upgrades or Animal Capacity better?
Animal Upgrades are better when your existing Animals are your main income source, because they raise output directly. Capacity is better when you have hatched Animals that cannot contribute yet. Buy whichever solves your current situation.
Q: Should I spend Cash on Base Expansion early?
Generally no. Base Expansion only pays off when your current base space actually limits your Animal setup. Before that point, Animal Upgrades and Capacity provide better returns per Cash spent.
Q: When should I Rebirth instead of continuing to upgrade?
Rebirth when the offered permanent Cash multiplier would make rebuilding faster than continuing your current run. If your run is still progressing well and walls are reachable, keep upgrading and pushing first.