Infinity Nikki Mira Building Open Day is a three-phase Version 2.11 event with 23 floors, exchange projects and rewards including Diamonds, decorations, poses and titles. It started after the 29 October update and ends on 26 November 2026 at 17:29 GMT. Only floors 1 to 10 are available at launch, with the next phases arriving on 5 and 13 November.
Open Current Adventures, select Mira Building Open Day and complete the Miraland Journey Review to begin exploring. You don’t need to look for an entrance elsewhere in Miraland. Once the review is complete, you can enter unlocked rooms and join exchange projects. Connected rooms open when the overall exchange progress reaches its target, so your attempts contribute to a shared effort.
How to unlock Infinity Nikki Mira Building Open Day
On your first visit, the Miraland Journey Recap reviews data from before the event started. It gives you an event-specific ability rating, an associated title and an exchange point bonus. The title appears in the event rankings only and doesn’t permanently change your character.
Finish the recap, choose an accessible exchange room and help build its shared progress. Once the room’s target is met, its connected pathways open. You can revisit completed rooms and choose a different route through Infinity Nikki Mira Building Open Day.
Infinity Nikki Mira Building Open Day floor unlock dates
| Phase | Accessible floors | UK time |
|---|---|---|
| Phase 1 | 1 to 10 | After the 29 October update |
| Phase 2 | 11 to 15 | 5 November, 12:00 GMT |
| Phase 3 | 11 to 23, as stated in the official notice | 13 November, 12:00 GMT |
Infold lists floors 11 to 23 under Phase 3 even though floors 11 to 15 open a week earlier. The last phase opens on 13 November, allowing players to progress through the remaining floors up to 23 as the connected routes unlock.
All 23 floors of Infinity Nikki Mira Building Open Day remain part of the limited-time event until 26 November at 17:29 GMT. You’ll need to claim outstanding rewards before it closes for Version 3.0 maintenance.
Infinity Nikki Mira Building Open Day room types
There are seven room types. Some require exchange attempts to advance, while others reward you simply for entering an unlocked area:
- Casual Zone: contribute to its exchange project until the room’s shared target is completed.
- Challenge Zone: work on both of the room’s exchange projects to open the next route.
- Supply Zone: collect exchange items or a shared exchange-point bonus, with no project.
- Surprise Room: claim souvenirs, Diamonds, materials and the Mira Building Special Guest title.
- Archive Room: browse story tidbits, add comments and piece together torn pages.
- Hub Control Room: appears in Phase 2; reaching the project’s completion target connects the phase’s pathways.
- Lighting Control Room: appears in Phase 3; completing the shared project clears mist from the phase’s other areas.
Checking a Supply Zone before another challenge is worthwhile. Any exchange items you find there may make the next timed task easier.
Infinity Nikki Mira Building Open Day exchange projects
Ready, Set, Snap! is a timed photography challenge where you capture Mira Building staff and try to earn a high score. Code, Connect, Launch! asks you to connect circuits and collect development keys, building Dev Heat. Fashion Detectives, Assemble! involves using styling Impression Clues to work out the outfit a master stylist wants.
Players receive three exchange attempts at 04:00 server time daily. Unused attempts carry over until the event closes. Friends can help too: invite up to three per exchange for an ability-based point bonus, with each friend able to assist you twice a day. Supply Zones offer limited-use exchange items and overall bonuses under Shared Bonus.
You can still play a room after its shared exchange is complete. Your new points then count towards personal achievements, not the overall total or leaderboards. That makes completed rooms useful if you’re still working on personal Infinity Nikki Mira Building Open Day rewards.
Daily employee challenge times and extra attempts
Mira Building employees appear at 12:00 and 18:00 server time each day. Each community challenge lasts 30 minutes and allows one scoring attempt per stylist. Participation rewards an additional exchange project attempt, which can also carry over.
The daily employee challenge times use the game’s server time. Don’t confuse them with the fixed UK times for Phase 2 and Phase 3, which are noon GMT because Infold gave those unlocks as 05:00 UTC-7.
Infinity Nikki Mira Building Open Day rewards
Take part in an exchange project and claim the Diamond reward through Current Adventures. Overall milestones award additional Diamonds and growth materials plus the Dreams in Mira Building decoration, Proud & Dashing pose and Momo’s Pose: Bouncing with Joy. Personal milestones include Diamonds, materials and the limited Speed Is Power title.
Visit Surprise Rooms for souvenirs and the Mira Building Special Guest title. Check both the overall and personal achievement panels after playing so you actually claim unlocked rewards. Finishing an exchange project doesn’t mean every milestone will automatically be in your inventory.
What to finish before Mira Building closes
If you’ve cleared everything accessible during Phase 1, keep your unused attempts for new rooms, collect Supply Zone bonuses and check the recap and rewards page. Return on 5 November for Phase 2, and 13 November for Phase 3. You can continue gathering personal points after the shared room progress completes.
Infinity Nikki Mira Building Open Day finishes on 26 November, 17:29 GMT. For other Version 2.11 rewards, see our free Frostwish Sprout outfit guide and seven-day Revelation Crystal login guide. Neither uses these building exchange attempts.
Official publisher source: Infold Games’ Version 2.11 update notice.
