Strategy · Pet Simulator 99

Pet Sim 99 rebirth strategy

Rebirths look small individually and matter enormously in aggregate. Here's the math and the order of operations.

6 min read Reading time
1,225 Words

What a rebirth actually does

A rebirth resets your in-game progress for a permanent boost. In PS99 specifically, it resets your area progress and your coin total. In exchange, you get:

  • A small permanent damage multiplier (the headline number).
  • Access to a tier of rebirth-locked content (rebirth shop, rebirth pets, area bonuses).
  • A cumulative count that's displayed on your profile.

The damage multiplier per rebirth feels small, usually a fraction of a percent, but they stack and compound with every other multiplier in your team. A player at 100 rebirths is meaningfully ahead of a player at 10 even if their pet teams are identical.

What resets and what you keep

Knowing exactly what survives a rebirth is what makes the decision easy. The reset is narrow on purpose.

ResetsSurvives
Area progress (you start back near spawn)Every pet in your inventory and equipped slots
Coin balanceDiamonds, gems, and all Huges / Titanics
Current-run area unlocksRebirth count and the permanent multiplier
Your position on the map (back near spawn)Gamepasses, enchants, best-pet upgrades, codes already redeemed

The headline point: rebirthing never costs you a pet, a Diamond, or a gamepass. It costs you coins and area position, both of which you regain in minutes at your now-higher damage. That asymmetry is why hoarding rebirths is always wrong — you are sitting on a permanent multiplier to protect a coin balance that resets anyway. New players who understand the currency split from the beginner guide get this instantly: you are trading the cheap, disposable currency for a permanent one.

The first rebirth: take it the moment you can

The first rebirth typically unlocks shortly after the Frozen Tundra area. Take it. Yes, it feels bad to reset Tundra progress. The math says you'll regain that progress in under 10 minutes at your now-permanently-higher damage, and you'll keep the multiplier forever.

The new-player instinct is to "save up" before rebirthing. Don't. Rebirth as soon as you can, because the multiplier benefits every coin you earn from now on, including the coins you'd be earning while you delay. Every minute spent un-rebirthed past the unlock is a minute of strictly lower output.

The mid-game cadence

After the first rebirth, the pattern is:

  1. Push to the area you can no longer break.
  2. Rebirth.
  3. Push back to that area (much faster).
  4. Push 1–2 areas further.
  5. Repeat.

This loop is the whole game until you have enough Huge-tier pets that damage isn't your bottleneck.

The mid-game rebirth count target: 20 rebirths within your first 10 hours. If you're below that, you're delaying too long; if you're at 30, you're probably rebirthing too aggressively without using rebirth bonuses. There is a wrong kind of fast here. Rebirthing the instant you can break the next gate, before you have actually farmed that area's coins and pets, means you reset with nothing banked and crawl back up. The sweet spot is to clear an area, drain its egg into a best-pet upgrade or two, then rebirth.

A simple gut check: each rebirth should take noticeably less time to recover than the last. If recovery is getting slower, you are rebirthing too early and skipping the farming that funds it.

How rebirths interact with your pets

Rebirths and pets multiply each other, which is why neither alone is the answer.

  • The rebirth multiplier scales everything your pets already produce, so the same Huge hits harder on a 100-rebirth account than a 10-rebirth one.
  • Breaking the best pets matters more as your rebirth count climbs. A high rebirth count on a weak team is wasted headroom; pair the multiplier with your strongest equipped pets from the pet tier list to actually feel it.
  • Enchants and best-pet (shiny) upgrades survive rebirths, so investing in them is never undone by a reset. Fuse duplicates and slot enchants freely; that progress is permanent in a way coin progress is not.

Rebirth shop

The rebirth shop trades rebirth currency for permanent boosts:

  • Damage boosts (always priority 1).
  • Lucky boost stacking (priority 2 once damage is comfortable; this feeds straight into your Huge hunting multiplier stack).
  • Coin multipliers (priority 3; they help, but pet damage is upstream).
  • Cosmetics (only if everything else is bought).

Spend rebirth currency every time you have enough for the next tier of damage boost. Don't hoard it. The damage multipliers in the shop are larger than the per-rebirth bonus itself, so skipping the shop while grinding rebirths is leaving the bigger number on the table.

Rebirth pets

After enough rebirths, you unlock rebirth-only eggs. These eggs drop pets that scale specifically with your rebirth count: useless on a new account, top-tier on a high-rebirth one. Save them for the rebirth-only farming setups documented in late-game guides. Because their power is tied to your rebirth total, there is no point hatching them early; a rebirth pet on a 5-rebirth account is strictly worse than a normal pet of the same tier.

When NOT to rebirth

Two scenarios:

  1. You're in the middle of a Huge hatch session. Don't break the session; your stacked Lucky boosts are the expensive part, and resetting area progress mid-hunt risks dropping a boost or your hatch rhythm. Finish, then rebirth.
  2. You're 5% from a major area unlock. Push through, take the new pets from the area, then rebirth. The pets are permanent; the area progress you'd lose is not the point.

Otherwise, rebirth every time it's available.

Common mistakes

  • Treating rebirths like a New Game+ challenge run. They aren't a "hard mode"; they're a permanent boost. Take them.
  • Hoarding rebirths to protect a coin balance. Coins reset anyway. You are guarding the disposable currency at the cost of the permanent one.
  • Skipping the rebirth shop. The damage multipliers there are bigger than the per-rebirth bonus.
  • Rebirthing the instant the next gate breaks. Farm the area's coins and pets first, or you reset with an empty bank and a slow climb back.
  • Buying rebirth shop cosmetics first. They look nice. Damage matters more.

FAQ

Will I lose my Huges or Diamonds if I rebirth?

No. Pets, Diamonds, gems, gamepasses, enchants, and best-pet upgrades all survive a rebirth. Only area progress and your coin balance reset, and both come back in minutes. There is no version of rebirthing that costs you a tradeable item.

How many rebirths should I have before chasing Huges?

There's no hard gate, but a comfortable damage base from rebirths makes Huge eggs affordable to roll repeatedly, which is what actually matters for the hatch math. Aim for the 20-in-10-hours pace, keep your rebirth-shop damage boosts current, then start stacking Lucky for hunts.

If you intend to keep playing, yes: anything that boosts rebirth gain or damage compounds across every future reset, which is the best kind of permanent value. A one-time cosmetic does not. Spend on the multiplier, not the skin.

Why does my rebirth multiplier feel so small?

A single rebirth is a fraction of a percent, so it is invisible in isolation. The value is cumulative and multiplicative: it scales every pet, every enchant, and every coin source at once. Judge it by the gap between a 10-rebirth and a 100-rebirth account, not by one rebirth in a vacuum.