Build the Pyramid! Codes (September 2026) — Launch & Update 1.5 Recap

Build the Pyramid! launched on September 3, 2026 and spent the month climbing from a fresh desert sandbox to one of Roblox’s fastest-growing co-op simulators. Its September codes came in two waves — and almost everything from the first wave is already gone.

Wave one: the launch-era codes (early September)

The very first codes carried milestone and community-celebration names, and all of them have since been confirmed expired by every tracker we cross-check:

• UPANDCOMINGPC1 — a PC-charts celebration code
• DISCORD2K — the 2,000-member Discord milestone

No reward details survive for either — they lived and died in the game’s first weeks.

Wave two: the Update 1.5 window (September 22-23)

The game’s first numbered update changed the code picture completely. Six codes landed in this window, and four of them are still working in October:

• WELCOME — 500 Walk Speed and 500 Strength (still active — the only stat code alive)
• FREECODE — 500 Coins (still active)
• SORRYFORUPDATEBUG — 2,500 Coins, the apology for the update’s launch bugs (still active)
• UPDATE15 — the monster: 50,000 Coins plus 25,000 Speed and Strength (currently disputed — see below)
• UPGRADES5K — 5,000 Coins (currently disputed — see below)

The UPDATE15 situation

UPDATE15 is simultaneously the biggest reward Build the Pyramid! has ever offered and its most contested code: October 10 checks from PCGamesN, Beebom, Radio Times and MrGuider still list it as working, while Bloxron and RBLXDB’s automatic tracking mark it expired. Our codes page holds it as “worth a try” with the full dispute documented — pasting an expired code costs nothing.

What September tells you about the code cadence

Two waves in under a month — launch-era milestones, then a full set with Update 1.5 — and the October pattern already matches (SUNGOD arrived October 1 and died within the week). This developer ties codes tightly to updates and milestones, and they expire fast. The codes page is the place to watch; the redeem guide covers the CODES sign by the quarry and the ticket button next to the settings cog.

If you are just arriving now

Grab WELCOME first (the only stat boost code left), then FREECODE and SORRYFORUPDATEBUG for Coins to spend on Bulk upgrades, then try the disputed pair — and grab the free gift (like + favorite + join the group) while you are at it. That is the entire September-plus-October haul in about two minutes.