The whole loop explained, then the three guides that match real player questions: your first session, your first rebirth, and the truth about more floors.
My Billionaire Zoo is a Simulation/Tycoon Roblox experience created on July 14, 2026 by the Lock in = $$$ group: you roll for animals the way other games roll for characters, place them in your zoo to generate money, and reinvest that money into more rolls. Rebirth resets part of your progress for permanent boosts, leaderboards rank the wealthiest zoos, and — unusually for the genre — the zoo keeps earning while you are offline. With six players per server, a creator group of over 100,000 members, and server content that rebalances every few days, the winning habit is not memorizing a fixed meta but measuring your own rates and re-measuring them after each update. Every guide here is built on that habit, and every number any page uses comes from the official description or your own inputs.
Straight from the official game description, annotated with what each means in practice. Checked 2026-10-06.
Animals are acquired through a roll system, not a fixed shop list: you spend in-game money on a roll and receive an animal whose identity and income value are decided by the roll. That makes luck management — knowing when a roll result is worth keeping — the central skill of the game.
Placed animals generate money for your zoo. The money buys more rolls, which buy more animals, which raise your rate. Because income comes from the animals you keep, the practical optimization is comparing each candidate animal against your current lineup instead of reacting to rarity alone.
Rebirth resets part of your progress in exchange for permanent boosts. The official description confirms the mechanic exists but publishes no cost, multiplier, or threshold — so the decision is best made from your own before-and-after rates rather than a universal rule.
The game tracks leaderboards for top zoo wealth. With six players per server, your zoo competes for standing within a small server rather than a global arena, and rebirth boosts feed directly into the climb.
The zoo keeps producing money after you log off. That single line in the official description is why offline earnings deserve their own planning mode: an overnight window at your observed rate is often worth more than an extra hour of active play, assuming the game applies no hidden cap.
Each summary tells you what the guide covers and when to read it — no filler pages, only routes that exist.
The complete first-session route through the official loop: roll, place animals, watch the rate, compare your next gain, and plan toward the first rebirth. Includes the observation habit that powers every later decision — recording your money-per-second before and after each change — plus the classic early mistakes: spending on rarity instead of rate, and skipping the offline-earnings setup that pays while you sleep.
Start here if you have played less than an hour.
Break-even checklistRebirth trades your current progress for permanent boosts, and the developer publishes neither the cost nor the multiplier — so the guide turns the decision into a checklist: record what you give up, measure a consistent pre-rebirth rate, enter a cautious post-rebirth estimate, and read both break-even and recovery time in the calculator. It explains why no universal 'rebirth at X' rule works in a game whose economy rebalances every few days.
Read before your first reset — it pairs with the calculator's rebirth mode.
Source watchAn exact-game creator has shown more zoo floors, but the full system — unlock requirements, costs, floor count, and how rebirth interacts with them — is not confirmed by any first-party source yet. The page lists exactly what evidence is needed before an unlock guide can be written, and how to check any floor claim against the exact place ID so a video title never gets mistaken for a game rule.
Read when you see 'more floors' claims on social media.
Four modes for the decisions the guides describe: compare rates, offline earnings, targets, and rebirth break-even.
StatusThe verified code situation with evidence and a watch plan — checked after every update.
OfficialThe exact game page — the authoritative source for updates, boosts, and group announcements.
