The Build a Base and Steal pet tier list is one of the most frequently updated and hotly debated resources in the community. The reason is simple: which pets are worth chasing with your limited rolling budget changes whenever a balance patch lands, a new collection bonus is introduced, or the trading market shifts in response to a meta change. This guide is the current snapshot of the meta, the reasoning behind each tier, and the strategic implications of how you should adjust your rolling targets.
How the Tier List Is Built
The tier list below ranks pets based on three weighted criteria: raw income rate, collection bonus value, and trading liquidity. Raw income rate is the cash a pet generates per hour, before any multipliers. Collection bonus value is the additional income or special effect you receive for completing a set of related pets. Trading liquidity is how easy it is to buy or sell the pet in the trading hub, which determines its real-world usefulness as a trading asset.
A pet that scores well on all three criteria lands in the S tier. A pet that scores well on one or two but poorly on the rest lands in A pet's design or aesthetic value; it is purely a strategic ranking for players trying to optimize their rolling budget.
The list also includes a "collection priority" recommendation, which is separate from the tier ranking. A pet might be S tier for income but low priority for collection if its collection bonus is weak. Conversely, a pet might be B tier for income but high priority for collection if its bonus is exceptional. Treat the two ratings as separate inputs to your rolling decisions, not as a single combined score.
S Tier: The Chase Targets
S tier pets in Build a Base and Steal are the ones that experienced players prioritize during rolling events and the ones that newcomers should orient their collections around. These pets combine high income rates with strong collection bonuses and active trading markets. If you are saving your rolling budget for a single target, an S tier pet is usually the right choice.
The current S tier is anchored by pets that received buffs in recent patches. These pets have income rates that are noticeably higher than the rest of their rarity tier, and their collection bonuses have been reworked to provide meaningful long-term value. Most losses.
The S tier is small on purpose. If everything were S tier, the ranking would be useless. The current S tier has roughly 8 to 12 pets, depending on how you count collection variants. Players who focus their rolling on this small pool will build a stronger long-term collection than players who spread their rolls across the entire pet roster.
A Tier: Strong Choices
A tier pets are the workhorses of most established collections. They are not as flashy as S tier pets, but they provide reliable income, decent collection bonuses, and reasonable trading value. Most A tier pets are still worth rolling for, especially during events that boost their drop rates. The difference between an A tier pet and an S tier pet is usually a 10 to 20 percent gap in income rate or a slightly weaker collection bonus.
The A tier is large, with 20 to 30 pets depending on the patch. Players who have already collected most of the S tier should shift their rolling focus to filling out their A tier collection. The marginal value of a third A tier pet is much higher than the marginal value of a tenth S tier pet, both because of the diminishing returns on income stacking and because A tier collection bonuses often unlock when you have 3 or more of a particular family as fast as S tier pets, and the prices are more stable. This makes A tier pets good trading assets, because you are less likely to be caught by a sudden price drop between when you acquire the pet and when you sell it.
B Tier: Solid Fillers
B tier pets are the collection filler of Build a Base and Steal. They are not bad pets; they are just not exceptional. Their income rates are average for their rarity tier, their collection bonuses are small, and their trading value is low to moderate. Most players accumulate B tier pets naturally through regular rolling, and they form the bulk of mid-game collections.
The strategic question with B tier pets is whether to roll for them specifically or to wait until they appear as byproducts of chasing higher tiers. The answer is almost always the latter. Rolling specifically for B tier pets is inefficient, because their drop rates are not particularly good and their value is not particularly high. Save the targeted rolling for S and A tier pets, and let the B tier pets accumulate passively.
The exception is collection bonuses. Some B tier pets have surprisingly strong collection bonuses when you have a full set. If a B tier pet is part of a set that includes an S or A tier pet, it might be worth rolling specifically for the B tier piece to complete the set. The collection bonus from the full only in specific contexts. They might be part of a particular collection bonus that is disproportionately valuable, or they might be pets that only matter during certain events. Most players can safely ignore C tier pets for the bulk of their rolling, and they will not miss out on much.
The exception is C tier pets that are part of event-exclusive sets. During events, certain C tier pets become valuable because the event shop requires you to collect a full set to unlock the best rewards. If you are participating in the event, you might need to roll for some C tier pets that you would otherwise ignore. Outside of those events, the same pets are usually not worth targeting.
Trading C tier pets is usually a bad idea, because the market is thin and prices fluctuate wildly. If you have a duplicate C tier pet, the best move is usually to keep it in your storage as a collection piece, or to give it away to a friend who is completing a set. Trying to sell C tier pets in the trading hub is usually a waste of time.
D Tier: Skip Unless Required
D tier pets are the bottom of the current ranking. They have low income rates, weak collection bonuses, and almost no trading value. Most D tier pets exist for variety or aesthetic reasons rather than strategic ones, and rolling for them is almost never a good use of your budget that includes two D tier pieces, you might roll for the D tier pets as a byproduct of chasing the S tier piece. The D tier pets will come along for the ride, and you can use them to complete the collection bonus.
Outside of collection completion, ignore D tier pets. Do not roll for them during events unless the event specifically requires them. Do not buy them in the trading hub unless the price is so low that you might as well. Do not feel bad about leaving them out of your collection; the marginal value of a D tier pet is essentially zero.
Adapting the Tier List to Your Playstyle
The tier list is a starting point, not a final answer. Different playstyles value different pets. A player who is focused on trading values liquidity more than income rate, and should weight the list accordingly. A player who is focused on offline income values raw income rate above all else, and should weight the list in the opposite direction. A player who is focused on collection bonuses values set completion above individual pet quality, and should use the list as a guide to which sets to prioritize.
The tier list also changes with each patch. Buffs and nerfs can move pets up or down several tiers in a single update. The pet that is S tier today might be B, read the patch notes carefully, and be ready to adjust your rolling targets whenever the meta shifts.
Finally, remember that the tier list is a tool, not a rule. If you love a particular pet regardless of its tier ranking, roll for it. The game is supposed to be fun, and fun is the most important optimization target of all. The tier list is for players who want to maximize their progression efficiency, and it is a great tool for that purpose, but it is not the only way to play Build a Base and Steal.
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 |
| Family bonus tiers | 3 / 5 / 8 pets | Collection milestones |
| Pet storage cap | 100 - 500 | Expand with cash |
| Pity counter reset | 100 rolls | Guaranteed rare drop |
Additional Strategic Context
The following material explores the practical considerations that experienced players apply when using the strategies outlined above for the pet rolling tier list area of pet rolling. The content here is drawn from community testing, observed high-level play patterns, and the documented interactions between pet rolling 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.
The relationship between pet rolling and trading is often overlooked by newer players. The trades you make affect your base, your defenses, and your rolling options. A pet that is best in your base might be worth more as a trade asset. A pet that you think is weak might be the missing piece for another player's collection bonus, and therefore worth a premium. The trading mindset is one of portfolio thinking: every pet is both a personal asset and a potential trade chip, and the value depends on the broader market context.
Finally, pet rolling rewards consistency over intensity. The player who logs in for 30 minutes every day and follows a deliberate plan will out-progress the player who logs in for 5 hours once a week and does whatever catches their attention. The reason is the same as for any compounding system: small, regular actions compound into large gains over time, while sporadic large actions produce sporadic large results with no compounding.
FAQ
Does this strategy work for both solo players and teams?
The principles are the same for solo and team play. Keep this principle in mind as you make decisions, and you will find that the pet rolling tier list content in this guide becomes easier to apply in practice because the principle provides a framework for choosing between options.
What should I do if the strategy stops working after a patch?
Read the patch notes carefully and look for pet rolling tier list system changes. Internalizing this principle is what separates players who plateau from players who keep climbing, and the difference is visible in the leaderboard positions after just a few weeks.
Where can I find more detailed information about this topic?
The official wiki, the community Discord, and the developer blog are the best sources. You will see this principle echoed in every serious pet rolling tier list discussion on Discord, because the most active players have all arrived at the same conclusion through their own experience.
How does pet rolling tier list interact with the trading economy?
The trading economy and pet rolling tier list interact constantly. pet rolling tier list outputs feed trades. Internalizing this principle is what separates players who plateau from players who keep climbing, and the difference is visible in the leaderboard positions after just a few weeks.
What is the best time of day to focus on pet rolling tier list?
Evenings and weekends have the most active players, but the best time depends on your schedule. 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.