Codes and rebirth are two of the most confusing systems for new Build a Base and Steal players. This FAQ answers the most common questions about promo codes, redemption issues, and the rebirth system.
Promo Codes
Q: What are promo codes and how do I get them?
A: Promo codes are special strings released by the developers that you can redeem for free rewards such as cash, pets, gear, or materials. Codes are released on social media (Twitter, Discord), during events, and in developer announcements. Follow the official Build a Base and Steal accounts to stay updated on new codes. Codes are time-limited and typically expire after 7-30 days.
Q: How do I redeem a promo code?
A: To redeem a promo code, open the settings menu, navigate to the codes section, enter the code exactly as it appears (including hyphens and capitalization), and click redeem. If the code is valid and not expired, you will receive your reward immediately. Codes can only be redeemed once per account, so if you have already redeemed a code, you cannot redeem it again.
Q: Why is my code not working?
A: Codes fail for several reasons: the code has expired, the code has already been redeemed on your account, the code was entered incorrectly, or the code is server-specific. Check the expiration date, verify you haven't redeemed it before, enter it exactly as shown, and ensure you are on the correct server. If the code still doesn't work, it may be invalid or bugged.
Q: Do codes give good rewards?
A: Code rewards vary, but most codes give 500-2,000 cash, a random uncommon-rare pet, or a small amount of materials. Some special codes give legendary pets or mythic materials, but these are rare. Codes are not a replacement for normal progression, but they provide a nice bonus. The total value of all codes over time can be significant for new players.
Rebirth System
Q: What is rebirthing and why should I do it?
A: Rebirthing is a long-term progression mechanic that resets your base, cash, and pet roster, but grants a permanent prestige multiplier that applies to all future income. You should rebirth when you have reached account level 30, when you have 20-25 pets with at least 5 legendaries, and when you have exhausted progression options in your current server. Rebirthing accelerates your long-term progression but wipes your short-term progress.
Q: What gets preserved during a rebirth?
A: Three things are preserved: your account level, your unlocked pet slots, and any pets you have marked as favorites before the rebirth. Everything else is reset, including your base, your cash, your gear (except for favorites), and your pet roster (except for favorites). Mark your 5 highest-rarity pets as favorites before rebirthing to preserve them.
Q: How much does the prestige multiplier increase per rebirth?
A: The prestige multiplier increases by 0.05-0.10x per rebirth, depending on the conditions met. The base increase is 0.05x. Meeting bonus conditions adds 0.02-0.03x per condition. The conditions include: reaching 25 pets, holding a mythic, having no losses, and rebirthing during an event. Meeting all four conditions can add 0.08-0.12x total.
Q: When should I do my first rebirth?
A: Do your first rebirth when you have plateaued in your current cycle. Signs of plateauing include: flat daily income despite active play, inability to obtain new high-rarity pets, and exhaustion of progression options. This typically occurs around account level 30 with 20-25 pets and 5-10 legendaries. Rebirthing too early wastes progress; rebirthing too late wastes time.
Q: Can I rebirth multiple times?
A: Yes, you can rebirth indefinitely. Each rebirth adds to your prestige multiplier, which compounds over time. However, the marginal benefit of each additional rebirth decreases as your multiplier grows. Most players stop actively rebirthing around a 2.0-2.5x multiplier, because the time investment outweighs the marginal gain. Beyond that point, rebirth is optional.
Advanced Questions
Q: How does the rebirth pity system work?
A: The rebirth pity system guarantees a mythic drop after a certain number of non-mythic rolls. The pity counter is tracked per player and resets after each mythic drop. The pity threshold is typically 5,000-10,000 rolls, depending on server settings. The pity system ensures that every player eventually obtains a mythic, even with bad luck.
Q: Should I rebirth during an event?
A: Rebirthing during an event is generally optimal, because the prestige multiplier compounds with the event bonus for the entire event window. A player who rebirths the day before a 2x event can collect double-event income from the first hour. The exception is for rolling events, where it may be better to delay rebirth until after the event to take advantage of the increased drop rates.
Q: How do I calculate the optimal rebirth timing?
A: Calculate optimal rebirth timing by considering three factors: your current multiplier, your roster strength, and the upcoming events. Rebirth when your multiplier gain from rebirthing exceeds the income you would generate by continuing in your current cycle for the same duration. This typically occurs when your daily income has been flat for a week despite active play.
Q: What happens to my base during a rebirth?
A: Your base is completely reset during a rebirth. All walls, traps, auras, and happiness objects are destroyed. Your pet roster is reset, except for your 5 favorite pets. Your cash is reset to the starting amount. Your gear is reset, except for the gear equipped on your favorite pets. You must rebuild your base from scratch after the rebirth.
Common Mistakes
Q: I rebirthed too early and now I'm stuck. What should I do?
A: If you rebirthed too early, focus on rebuilding your base and roster as quickly as possible. Roll during events to obtain pets, upgrade your gear to epic, and build a simple but functional base. It may take several weeks to recover, but the prestige multiplier will eventually accelerate your progression. The mistake is temporary, and you will recover with time.
Q: I forgot to mark favorites before rebirthing. Can I get them back?
A: No, pets that are not marked as favorites are permanently lost during a rebirth. There is no way to recover them. This is why marking favorites before rebirthing is critical. If you forgot to mark favorites, accept the loss and focus on rebuilding with new pets. The experience will teach you to be more careful next time.
Q: I entered a code but didn't receive my reward. What should I do?
A: If you entered a valid code and didn't receive your reward, wait 5-10 minutes for the reward to process. If you still don't receive it, check your inventory to see if the reward was added there. If the reward is still missing, contact support with the code details and your account information. Codes occasionally have bugs, and support can help resolve the issue.
Codes and rebirth are powerful systems when used correctly. Use codes to accelerate your early progression, and use rebirth to accelerate your long-term progression. Master both systems, and you will progress faster than players who ignore them.
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
This section expands on the practical considerations that experienced players apply when using the strategies outlined above for the codes and rebirth faq area of faq. The content here is drawn from community testing, observed high-level play patterns, and the documented interactions between faq 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.
The starting point for any serious player is to recognize that the game rewards deliberate, informed decisions more than it rewards raw time investment. A player who spends 30 minutes thinking through their next move will out-progress a player who spends 3 hours clicking randomly. The reason is that Build a Base and Steal is a system of interconnected mechanics, and every action ripples through the rest of the system. A change in your rolling strategy affects your base, which affects your defenses, which affects your raid income, which affects your next rolling budget.
Another important consideration is the time horizon. faq decisions can be evaluated on three horizons: the per-session horizon (what should I do right now), the per-week horizon (what should I focus on this week), and the per-month horizon (what should I optimize for over the next month). Most beginners operate only on the per-session horizon, and they miss the long-term compounding that the per-week and per-month horizons provide. A good rule of thumb is that 20 percent of your time should be spent on per-session optimization, 30 percent on per-week planning, and 50 percent on per-month strategy.
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.