Boss Slayer title
Steel Fighters · +9% Arena Damage
Beat 100 bosses for +9% Arena Damage. The weakest Arena Damage buff, and it takes a while - treat it as a by-product of floor pushing.
| Tier | C |
|---|---|
| Buff | +9% Arena Damage |
| Requirement | Beat 100 bosses. |
Bosses sit in the arena climb, so if you are pushing floors for Tower Climber, Arena Legend or Star Voyager you will pass 100 bosses on the way. Do not chase this one directly.
The buff is small: +9% Arena Damage against +27% from Unstoppable. It is worth equipping while it is the only Arena Damage title you own, and worth dropping the moment Engineer (+18%) or Unstoppable (+27%) unlocks.
One thing sources do not spell out is whether boss kills from every mode count or only arena bosses. If your counter seems stuck, focus on arena bosses rather than junkyard fights.
See where it sits on the tier list, or start from the beginner guide if you are still working out the loop.
Other titles
Rookie
The first title most players get: +4% Cash at level 10. Small, but it is free and you will hit the level by playing normally.
Scrapper
Deliver 100 junk to your home base for a permanent +9% Scrap. It is the cheap half of the scrap pair that Junk Tycoon finishes.
Lever Lord
Pull the parts lever 1,000 times for +9% Luck. Grindy on paper, but lever pulls are how you buy robot parts, so it happens while you build.
Master Builder
Build 60 robots for +14% Luck. Robot count, not robot quality - cheap builds count, which makes this a much shorter grind than it looks.
Engineer
Upgrade your robots 500 times for +18% Arena Damage. Upgrades are the cheap way to raise a robot, so this comes with normal play.
Tower Climber
Reach floor 100 for +14% Cash. This is the first floor milestone title, and the one that tells you the warm-up is over.