Pet Simulator 99 Update 99 opens the spawn door today at 10:00 a.m. in Mexico

Announced · Researched: October 24, 2026 (UTC) · AI-assisted writing.

Quick answer

Update 99 in *Pet Simulator 99* starts on Saturday, October 24, 2026 at 10:00 a.m. Mexico City time (16:00 UTC). The official listing keeps the window open until Saturday, October 31 at 10:00 a.m. Mexico City time (16:00 UTC).

What is confirmed

BIG Games Pets says that the door at spawn, locked since day one, will open with Update 99. The announcement does not yet identify the area behind it or any pets, currencies, eggs, odds, prices, codes, or rewards.

Requirements

The listing only requires joining the experience when the update is available. It does not announce a key, purchase, level, Rebirth, or prerequisite quest for opening the door, so do not prepare or buy an item based only on leaks.

How to check the opening

1. Open the official Pet Simulator 99 experience after 10:00 a.m. Mexico City time.
2. Join a server started after deployment; if you were already playing, leave and rejoin.
3. Return to spawn and find the door marked with the number 99.
4. Follow the prompts shown in the live version. The public description does not yet confirm what interaction will replace the chains.

Why a new server matters

An instance opened before the scheduled time may keep the previous state. If the door remains locked after the start, switching servers is a more reliable check than assuming you need a secret item.

Mistakes to avoid

Do not confuse Update 99 with Diamond Mountain, the previous Update 98. Do not treat a theory about the door as proof of a new area, pet, or reward either: the thumbnail confirms the locked entrance, but it does not reveal what is behind it.

Success check

The updated version should change the door's state or show an interaction, objective, or entrance tied to Update 99. If nothing changes, check the official event listing in case the creator adjusts the schedule, then join another instance.

Checklist

• Join after 10:00 a.m. Mexico City time.
• Use a new server.
• Check the door marked 99 at spawn.
• Follow only objectives visible in the game.
• Wait for official notes before spending resources.

Related reading

The official Diamond Mountain notes explain Update 98; its mechanics should not be projected onto Update 99.