This page archives every Build a Base and Steal code that has expired, was retired, or was time-limited and has since closed. The archive serves two purposes. First, it lets players who find an old code in a YouTube video, a screenshot, or a forum post quickly determine whether the code is still valid without wasting time testing it in-game. Second, it provides a historical record of the rewards the developers have released over time, which helps players predict future code patterns and understand the live-ops strategy behind the game's economy.
The archive is organized chronologically by approximate expiration date, with the most recent retired codes at the top. Each entry includes the code, the reward it granted, the date it expired, and the context for the release when known. Codes that expired without a clear announcement are marked "retired silently." This archive is updated whenever a code is confirmed dead, and entries are never deleted, so you can always trace the full history of Build a Base and Steal's code releases.
Recently Expired Codes (June - July 2026)
The following codes were active in June or July 2026 but have since expired or been retired. If you have not redeemed these codes, you cannot claim their rewards, and there is no method for reissuing them. The developers have confirmed multiple times that expired codes stay expired, and they do not bring back codes from prior seasons except in rare anniversary events.
SUMMERFEST - 3,000 cash plus 5 free rolls. Expired July 4, 2026, Independence Day celebration.
MIDYEAR25 - 2,500 cash. Expired June 30, 2026, mid-year milestone.
PETDROP - 5 free rolls with rare+ guarantee. Expired June 20, 2026.
RAIDWEEK - 3,000 cash plus raid gear pack. Expired June 10, 2026, raid event.
BUILDER - 2 free rolling machine upgrades. Expired June 5, 2026.
SPRINGCASH - 1,500 cash. Expired June 1, 2026, end of spring season.
These codes represent a typical monthly cadence. The developers usually release three to six codes per month, with larger rewards tied to seasonal events and smaller rewards filling in the gaps. If you are trying to predict what future codes might look like, this pattern is your best guide. Expect a major code around the end of each month, a smaller code mid-month, and occasional surprise codes during livestreams or community events.
Why Codes Are Archived
We archive expired codes rather than deleting them because the historical record serves several practical purposes. New players searching for a code they saw on a one-year-old video need to know whether the code is dead, and an archive answer is faster than testing every code in the game. Wiki editors who maintain the active list need a reference to avoid accidentally re-listing an expired code. And players who are curious about the game's economy benefit from seeing how the developers have used codes to shape player behavior over time.
The archive is also useful for spotting fake codes. If a YouTube video claims a code called "SUPERPET2025" granted a legendary pet, you can check the archive to see whether such a code ever existed. Fake codes often have names that sound impressive but do not match any real release, and the archive makes those mismatches easy to spot.
Older Expired Codes (Q1 2026)
The first quarter of 2026 produced a steady stream of codes tied to update launches and seasonal celebrations. The list below covers all confirmed codes that expired between January and March 2026.
NEWYEAR2026 - 5,000 cash plus 10 free rolls. Expired January 15, 2026.
WINTERPET - 1 free legendary pet. Expired February 1, 2026.
VALENTINE - 1,000 cash plus 2 free rolls. Expired February 14, 2026.
SPRING2026 - 2,500 cash. Expired March 20, 2026.
EASTEREGG - 1 free rare. Expired March 25, 2026, Easter weekend.
PETLOVER2 - 3 free rolls. Expired February 28, 2026.
The Q1 2026 codes reflect a developing live-ops strategy. Earlier codes tended to be one-off events, but as the game matured, the developers began spacing codes more evenly throughout the month and tying them to specific gameplay themes. The Q1 codes included a noticeable emphasis on pet rewards, which coincided with the pet system overhaul that landed in the v2.2 update.
Expired Codes From 2025
The 2025 archive covers the game's first full year of live operations. The codes below are all confirmed dead, and the developers have not indicated any plans to reissue them.
LAUNCH - 10,000 cash. Expired December 31, 2025, end of launch year.
BETA2025 - 5,000 cash plus 5 free rolls. Expired November 15, 2025, beta tester appreciation.
ONEYEAR - 7,500 cash plus 1 free legendary. Expired October 1, 2025, first anniversary.
SUMMER25 - 3,000 cash. Expired August 31, 2025.
BACKTOSCHOOL - 1,500 cash plus 5 free rolls. Expired September 15, 2025.
HALLOWEEN25 - 1 free epic pet. Expired November 1, 2025.
XMAS2025 - 5,000 cash plus 10 free rolls. Expired December 26, 2025.
The 2025 codes followed the same monthly cadence, with major seasonal codes anchoring the calendar and smaller update-tied codes filling in the gaps. This pattern is likely to continue throughout 2026, and the archive gives you concrete numbers to plan around when deciding how to spend code rewards.
How to Read This Archive
Each entry in this archive follows the same format. The code itself is in bold. The reward granted is listed immediately after. The expiration date and context (when known) appear at the end. If you see a code in an old video or post, search this page for the code name. If it appears here, the code is dead, and you do not need to test it. If it does not appear here, the code is either still active (check the active list) or was never an official code (likely a fake).
For codes that expired silently, we mark them as "retired silently" rather than guessing at an expiration date. Silently retired codes are usually pulled because the developer backend flagged them for an issue, such as a typo in the original announcement, an incorrect reward description, or a reward that was more generous than intended. These retirements happen quickly and are not always announced, so the archive cannot always pinpoint an exact date.
Why Some Codes Are Marked "Retired Silently"
A small number of codes are pulled without an announcement because the developers notice a problem shortly after release. Common reasons include a reward that would inflate the in-game economy if widely redeemed, or a code that conflicts with another live code. When this happens, the developers disable the code and may or may not post about it. We mark these as "retired silently" and do our best to identify the cause after the fact.
Players who redeemed a silently retired code generally keep their rewards, because retroactively clawing back rewards would damage trust. The developers prefer to retire a problematic code quickly and accept the small economy impact rather than punish the players who redeemed it in good faith. This is the right approach, and it is one reason the community trusts the live-ops team.
Looking Forward: What the Archive Tells Us
Studying the archive reveals a clear live-ops strategy. The developers reward three behaviors consistently: logging in during major events, engaging with the community on Discord, and staying subscribed to the official X account. Players who follow all three of these channels rarely miss a code, while players who only check one channel miss out on multiple rewards per month. The archive also shows that the developers favor cash and free roll rewards over exclusive pets, with exclusive pets reserved for the most significant milestones. Putting these patterns together, the practical habit that captures the most free value is to check the active codes list at the start of every session. Second, enable notifications on the official Discord and X account. Third, participate in community events, which are often accompanied by exclusive codes. Fourth, watch for update announcements, because every major update is accompanied by at least one code. Following these four habits puts you ahead of 80% of players in terms of free reward capture.
Reporting Errors in the Archive
If you find a mistake in this archive, such as a code listed as expired that is actually still working, please report it in the community Discord. Our team verifies every entry before adding it, but occasionally a code is mistakenly listed as expired because we could not reach the developer's server to test. Player reports help us catch these edge cases quickly.
The archive is a community resource, and its accuracy depends on contributions from players like you. By reporting errors, you help every other player who relies on this page to know exactly which codes are still alive and which are dead. Thank you for keeping the archive accurate and useful.
This page will continue to grow as new codes are released and old ones retire. Bookmark it and check back whenever you have a question about a specific code's status.
See Also
Quick Stats Reference
| Element | Typical Value | Best Use |
|---|---|---|
| Cash per minute | 50 - 500 | Track in your daily log |
| Rolls per hour | 20 - 80 | Budget for events |
| Walls per layer | 4 - 8 | Defensive core design |
| Pets per base | 12 - 25 | Income + defense mix |
| Raid attempts/day | 3 - 10 | Energy and target rotation |
Additional Strategic Context
Below we explore the practical considerations that experienced players apply when using the strategies outlined above for the expired codes area of codes. The content here is drawn from community testing, observed high-level play patterns, and the documented interactions between codes mechanics and other game systems. The goal is to give you the kind of contextual awareness that comes from hundreds of hours of play, condensed into a few paragraphs you can absorb in a single sitting.
Before diving into the specifics of expired codes, take a moment to understand the meta-game that surrounds the visible game. The visible game is the rolling, building, and raiding loop. The meta-game is the patch cycle, the community discourse, the trading economy, and the long-term progression arc. The visible game is what you do for 30 minutes in a session. The meta-game is what you optimize for over weeks and months. The most successful players treat both games with equal seriousness, and they understand that the meta-game is where the truly large gains come from.
The second thing is that codes has a feedback loop with the rest of the game. A stronger base leads to more successful defenses, which leads to more retained pets, which leads to higher offline income, which leads to faster progression, which leads to a stronger base. The opposite feedback loop is also true: a weak base leads to lost pets, slower progression, and weaker defenses. The early-game decisions have outsized impact because they determine which loop you enter.
The third thing is that the meta shifts with each patch, and the strategies that worked last month may not be optimal this month. The most resilient players are the ones who build a deep understanding of the underlying mechanics, not the ones who memorize specific pet rankings or wall layouts. When the meta shifts, a player who understands the mechanics can adapt their strategy in a day. A player who memorized the old strategy has to relearn everything.
FAQ
How does expired codes interact with the trading economy?
expired codes and trading are deeply connected. Your expired codes output drives your trade options. If you take only one thing away from this section, let it be this principle: the specific actions change, but the underlying logic does not.
What is the best time of day to focus on expired codes?
Peak hours vary by region, but weekends generally have more expired codes activity. If you take only one thing away from this section, let it be this principle: the specific actions change, but the underlying logic does not.
How much cash should I budget for expired codes per session?
Reserve about 20-30 percent of your daily income for expired codes. If you take only one thing away from this section, let it be this principle: the specific actions change, but the underlying logic does not.
What is the most important expired codes concept for new players?
The core idea is that expired codes is interconnected with the rest of the game, not a standalone activity. Players who learn this lesson early save themselves weeks of trial and error, and they tend to climb the leaderboard faster than players who learn it through repeated mistakes.
How long does it take to see results from this strategy?
Plan on two to three weeks of consistent effort to see real expired codes gains. This is the kind of meta-strategy that does not appear in any specific guide, but it is what the most successful players in the expired codes area of the game have all learned to do.