Picking the right units in Animal Busters: Idle RPG can make a huge difference, especially since the game runs on auto battles and passive progression. At first glance, it feels like you can just let the game play itself, but the truth is your team setup will decide how fast you grow and how far you can push content like bosses and PvP. That’s why understanding which units are worth investing in early on will save you a lot of time and resources.
With its mix of idle mechanics and strategy-based formations, the game rewards players who build smart teams rather than just collecting random units. This tier list will help you figure out which units are worth prioritizing and which ones you can safely ignore.
Tier List Animal Busters : Idle RPG
Beyond tier rankings, there are a few important things to keep in mind when building your team. First, always consider faction synergy. Combining units from compatible factions can give you extra bonuses that significantly boost your team’s performance.
Second, focus your resources wisely. Instead of upgrading too many units at once, invest in a few strong ones to maximize their potential. Since this is an idle game, resource management plays a big role in how fast you progress. Lastly, adjust your team depending on the mode you’re playing. PvE and PvP often require different strategies, so having flexible units will give you an advantage.
S-Tier (Best Units, Top Priority)
S-Tier units are the strongest picks in the game right now. They perform well across all modes, including story progression, boss fights, and arena PvP. These units usually have high damage output, strong area-of-effect skills, or powerful utility that benefits the entire team.
Another reason S-Tier units stand out is their long-term value. They scale very well into late game, meaning you won’t need to replace them anytime soon. Many players build their core team around these units because they are flexible and can fit into different formations easily. If you pull any S-Tier unit early, it’s a good idea to invest in them right away and build your team around them for consistent progress.
A-Tier (Strong and Reliable Choices)
A-Tier units are solid performers that can carry you through early to mid game without any major issues. While they may not be as dominant as S-Tier units, they still offer strong skills and dependable performance in most situations. They are also often easier to obtain or upgrade.
One of the biggest advantages of A-Tier units is their flexibility. They work well in many team compositions and don’t rely heavily on specific setups. For players who haven’t pulled top-tier units yet, A-Tier options are more than enough to clear most content. In some cases, with the right team synergy, they can even compete with higher-tier units.
B-Tier (Situational and Combo-Dependent)
B-Tier units are more situational and usually require the right setup to shine. On their own, they might feel underwhelming, but when paired with the right teammates or used in specific modes, they can still be effective. Their skills often focus on buffs, debuffs, or niche mechanics.
To get the most out of B-Tier units, you’ll need a better understanding of team synergy and battle mechanics. They are a good choice for players who enjoy experimenting with different strategies. However, if your goal is fast and efficient progression, these units should not be your main focus early on.
C-Tier (Low Priority Units)
C-Tier units generally have weaker performance compared to others. They may lack damage, useful skills, or proper scaling, which makes them less effective in both early and late game. Most players only use them temporarily when they don’t have better options.
That said, these units can still fill gaps in your team during the early stages. They are not completely useless, but you should replace them as soon as you get stronger units. Holding onto them for too long can slow down your overall progress.
Animal Busters: Idle RPG may look like a simple auto-play game, but your choices still matter a lot. Building the right team from the start can help you progress faster and avoid wasting valuable resources. This tier list is a solid starting point to guide your decisions, especially if you’re new to the game.
As updates roll in, the meta may shift and new units could change the rankings. It’s always a good idea to stay flexible and test different combinations. Still, using this tier list as your foundation will keep your progression smooth and efficient over time.