Build a base RNG
Build a base RNG Events Schedule: Big Update Countdown and What’s Next
Build a base RNG’s next scheduled drop is a new-content update the developer is calling Big Update, running across a two-day window from Saturday, August 22, 2026, at 1:00 p.m. ET through Monday, August 24 at the same time (5:00 p.m. UTC, 10:00 a.m. PT, 6:00 p.m. UK time). More than about 8,200 players have already marked themselves as going, and the game is pulling about 17,000 players in-game right now, so there is a sizable audience waiting on whatever it brings.
The update lands right on the game’s recent weekly rhythm. Its last two events both opened on a Saturday at 1:00 p.m. ET a week apart — Sky Update on August 8 and the Evil Admin Abuse session on August 15 — and Big Update keeps that same Saturday-afternoon slot. The developer has not yet detailed what the update adds.
This page covers what is live and what is coming next for Build a base RNG, and we update it as the developer announces new events. Exact start times and windows are in the schedule below. Last updated August 22.
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Upcoming events1 scheduled
BIG Update! 👑
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Aug 22, 1:00 PM – Aug 24, 1:00 PM ET
Recently ended2 wrapped
😈 EVIL ADMIN ABUSE 😈
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Aug 15, 1:00 PM – 1:30 PM ET
🛩️SKY UPDATE 💥
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Aug 8, 1:00 PM – Aug 10, 1:00 PM ET
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The next event: Big Update
Big Update is a new-content update scheduled to run from Saturday, August 22, 2026, at 1:00 p.m. ET through Monday, August 24 at 1:00 p.m. ET (5:00 p.m. UTC, 10:00 a.m. PT, 6:00 p.m. UK time). That two-day span sets it apart from the short live sessions the game has also been running. The developer has not spelled out what the update includes. More than about 8,200 players have registered interest ahead of it. Its two-day window mirrors August’s Sky Update, which points to the developer using longer runs for content patches and tighter half-hour blocks for its festival-style live sessions.
A weekly Saturday cadence
Across August, Build a base RNG has settled into a clear pattern: a fresh event each Saturday at 1:00 p.m. ET. Sky Update opened August 8, the Evil Admin Abuse session ran August 15, and Big Update follows on August 22, each exactly a week apart. That rhythm makes the next drop easy to anticipate — barring a change from the developer, Saturday early afternoon ET is the window to watch.
Evil Admin Abuse, the last live session
The most recent event was Evil Admin Abuse, a festival-category live session that ran for 30 minutes on Saturday, August 15, 2026, from 1:00 to 1:30 p.m. ET. It drew the biggest turnout of the recent run, with nearly 23,000 players marking interest.
Sky Update
Before that, Sky Update ran as a two-day new-content update from August 8 to August 10, 2026, opening and closing at 1:00 p.m. ET. It pulled in more than 18,000 interested players. Its two-day format is the same one Big Update uses, the clearest sign of how the developer structures content patches versus its shorter live events.
Frequently asked questions
When is the next Build a base RNG event?
The next event is Big Update, a new-content update running from Saturday, August 22, 2026, at 1:00 p.m. ET through Monday, August 24 at 1:00 p.m. ET. Any later additions will appear in the schedule above.
What time do Build a base RNG events start?
Recent events have all started at 1:00 p.m. ET (5:00 p.m. UTC, 10:00 a.m. PT, 6:00 p.m. UK time), including Big Update on August 22. The game has kept that same early-afternoon start across its August schedule.
What was the Evil Admin Abuse event?
Evil Admin Abuse was a 30-minute festival-style live session on Saturday, August 15, 2026, from 1:00 to 1:30 p.m. ET. It was the best-attended of the recent events, with nearly 23,000 players marking themselves as interested.
How many players are interested in the Big Update?
More than about 8,200 players have marked themselves as going for the August 22 Big Update. That trails the turnout of the recent live sessions, though sign-ups tend to climb as the date gets closer.