Training Simulator Rebirths, Gems & Worlds
When to rebirth, how currency loops work, and how to unlock City World at 10 Rebirths.
Rebirth is the long-term engine of Training Simulator. Temporary Strength gets traded for permanent multipliers, better currency loops, and world unlocks that refresh the gym ladder. The headline destination for early accounts is City World at 10 Rebirths. This guide explains how rebirth works, when to press the button, how gems and currencies recycle through the loop, and how to avoid the Softcap trap that keeps players stuck below that tenth rebirth.
Pair this page with How to Train for equipment discipline and the Pets Guide so multipliers are equipped before and after each rebirth. Redeem Codes on both sides of the reset when they still work.
What a rebirth does
A rebirth resets portions of your short-term progress in exchange for lasting power. You return to earlier machines briefly, but every rep is worth more. That trade is the point of incremental simulators: accepting a short dip to raise the slope of every future session. Players who refuse to rebirth “until the number looks nicer” quietly donate hours to Softcaps while others unlock worlds.
Rebirth count also gates content. City World unlocks at 10 Rebirths, giving access to a new environment and stronger progression tools. Treat the first ten rebirths as a campaign objective, not a side activity.
When to rebirth
Use these rules of thumb:
- Rebirth when the requirement is met and gains feel flat. If each minute adds less meaningful progress, the multiplier is overdue.
- Do not overshoot for vanity Strength if the rebirth is ready and pets are equipped.
- Rebirth sooner if pet slots are strong. Good pets flatten the rebuild curve—see Pets Guide.
- Rebirth later only if a nearby egg tier or code dump meaningfully changes the math. Waiting for a known Crystal windfall can be smart; waiting out of fear is not.
- Count toward 10. Every early rebirth is progress toward City World.
If you are unsure, prefer rebirthing. In Training Simulator, hesitation is usually more expensive than an early reset.
Pre-rebirth checklist
Run this list every time:
- Claim active codes via the gift icon on the right.
- Equip your strongest pets; unequipped power does not help the rebuild.
- Note your current Strength milestone (100 / 1K / 10K / 100K / 1M) so you know what “back to pace” feels like afterward.
- Clear any almost-finished egg purchase if it will help the next loop.
- Confirm rebirth requirements in the UI—do not guess.
After confirming, rebirth immediately. Then re-equip pets, reclaim codes if still valid, and move to the best unlocked station without sightseeing.
Gem and currency loops
Currencies in Training Simulator cycle through training rewards, egg purchases, combat payouts, and rebirth-related bonuses. The healthy loop looks like this:
- Train on optimal equipment for Strength and payouts.
- Convert surplus currency into eggs that upgrade pet multipliers.
- Use higher multipliers to train faster and fight efficiently when worth it.
- Rebirth for permanent gains and world progress.
- Repeat in a better world with better stations and eggs.
Breaking the loop usually means hoarding currency through Softcaps, spending everything on low-value impulse buys, or ignoring pets. Gems and Crystals are tools for eggs and progression—not scoreboard cosmetics. When City World opens, re-learn vendor locations; old spending habits may not match new egg tiers.
City World at 10 Rebirths
City World is the first major world unlock most players target. Requirements are straightforward: reach 10 Rebirths. Strategy implications:
- Plan the first ten rebirths as a focused sprint.
- Keep pet slots improving each cycle so rebuilds stay short.
- Do not derail the sprint with endless ring farming—combat is secondary until the world is open (Combat & PvP).
- After unlock, scout new gym equipment immediately and abandon obsolete AFK spots (How to Train).
- Reassess eggs; City World should expand what “best pet” means—check the pets tier list.
City World is not the endgame, but it is the first structural power spike. Accounts that stall at 6–8 rebirths often do so because they overvalue pre-rebirth Strength or under-invest in pets.
Rebirth pacing by stage
Rebirths 1–3 — Learn the button. Mistakes are cheap. Equip anything, claim codes, go again.
Rebirths 4–7 — Tighten pets. Stop carrying dead slots. Training discipline matters more.
Rebirths 8–10 — Sprint to City World. Avoid long combat side quests. Spend currency on eggs that shorten the final rebuilds.
Post–City World — Rebuild routes around new stations. Update your milestone mindset; 100K and 1M arrive faster with world + pet + rebirth stacks. Premium’s +10% Strength and Speed becomes more valuable when the underlying loop is already correct.
Ranks versus rebirths
Ranks climb Bronze → Silver → Gold → Platinum → Diamond → Master → Challenger → Grand Master. Rank feels good, but rebirth count unlocks worlds. Never delay a rebirth just to hold a temporary Strength number that props up a rank badge. Rank will follow multipliers; worlds will not follow vanity stats.
Softcap psychology
Softcaps are emotional more than mechanical. You see a big Strength value and hate resetting it. Reframe the number as fuel already spent. The rebirth multiplies future fuel. Players who internalize that framing reach City World days earlier than players who protect a screenshot.
Linking rebirths to the rest of the wiki
- Day-one path: Getting Started
- Equipment between rebirths: How to Train
- Multipliers that ease rebuilds: Pets Guide / pets tier list
- Optional fights during rebuilds: Combat & PvP
- Free resources: Codes
- Patch changes to costs or worlds: Updates
Rebirth on purpose, spend currency into pets, and treat 10 Rebirths → City World as your first season goal. Once that unlock is behind you, every guide on this wiki plays on a faster clock.
Frequently Asked Questions
Quick answers about codes, training, pets, rebirths, and combat.
When should I rebirth in Training Simulator?
As soon as rebirth is available and gains feel flat—especially if pets are equipped. Overshooting for vanity Strength usually wastes time.
How do I unlock City World?
Reach 10 Rebirths. Focus early rebirths as a sprint and keep pets equipped so each rebuild stays short.
What should I do right before a rebirth?
Redeem codes, equip your best pets, then rebirth and re-equip immediately afterward.
Do ranks matter more than rebirths?
No. Ranks from Bronze to Grand Master follow power. Worlds like City World require rebirth count—prioritize that gate.
How do gems and currencies fit the loop?
Convert surplus currency into eggs and progression tools that raise multipliers, then train and rebirth faster. Hoarding through Softcaps slows City World.