Looking to get ahead in Upgrade Your City? Whether you’re just starting or trying to unlock higher-tier buildings faster, these Upgrade Your City codes can give you a major boost. From crate luck bonuses to top-tier buildings, redeeming codes is the easiest way to power up your city without spending Robux.

All Active Upgrade Your City Codes (September 2025)
Use these codes exactly as shown to claim your rewards in-game. Some grant the best building from your current crate tier, while others provide luck boosts or cash:
Code | Reward |
---|---|
CodesAreBack!!! | Equipment Rack (NEW) |
StartingCash! | 1 Best Building of Your Current Crate (NEW) |
SomeBoosts! | 1 Best Building of Your Current Crate |
FusingUpdateLOL! | 3x Best Building of Your Current Crate |
CitizenUpdate!!! | Best Building of Your Current Crate |
UpdateSoon! | Best Building of Your Current Crate |
OuttaHawaii | 30 Minutes of 2x Crate Luck |
Tip: Some codes are tier-based — meaning your current crate level determines the building you receive.
How to Redeem Codes in Upgrade Your City
Redeeming codes in Upgrade Your City is quick and simple:
- Open Roblox and launch Upgrade Your City.
- Click the Settings tab on the left side of your screen.
- Scroll down until you see the “Enter Code” text box.
- Type or paste a code from the list above.
- Click “Claim” to receive your reward instantly.
You’ll see a confirmation if the code was valid. If not, double-check for typos or expiration.
What Do Codes Give You?
Here’s what you can expect when redeeming different types of codes:
- Crate Luck Codes (e.g.,
OuttaHawaii
,SomeBoosts!
): Temporarily boost your chances to get rare buildings from crates. - Building Codes (e.g.,
FusingUpdateLOL!
,CitizenUpdate!!!
): Give you powerful structures directly. - Cash or Equipment Codes (e.g.,
StartingCash!
,CodesAreBack!!!
): Help you upgrade or expand without grinding.
Where to Find More Codes
To stay ahead and never miss a code:
- Bookmark this page – We’ll keep it updated with the latest working codes.
- Join the official Discord server – New codes are often posted in the
#codes
channel. - Follow the developer group on Roblox – They post updates, giveaways, and sneak peeks.
About Upgrade Your City
In Upgrade Your City, your goal is to build a profit-generating urban empire. By opening crates and placing buildings, you generate income even while offline. The more you upgrade your city, the more advanced and profitable your structures become.
But the higher your tier, the harder it gets to progress — making these codes a valuable tool to climb faster.
Tip: You can also bookmark our own Fdaytalk Gaming page, where we regularly share all working codes and guides for Upgrade your city, and many other games. It’s an easy way to stay updated without missing new drops.
That wraps up the full list of working Upgrade Your City codes for September 2025. Whether you’re chasing the best buildings or trying to speed up crate openings, these freebies are the perfect way to grow your city without the grind.