Steel Fighters Parts: Slots, Stats, Perfect Trait and Index

What each slot carries

A part only fits its own slot, so the slot decides what you are shopping for before the stats do. The cards at the top of this page line the six jobs up side by side.

Slot decides where a part can go. A perfect torso cannot fill a leg slot, so slot shopping comes before stat shopping.

The cards we could read

Every number on this page was read off a card on screen, with the price the wall showed at that moment. Where a card did not print a number, the card above says so instead of guessing.

The part wall listing one part per slot with its stats and Cash price

Two things to notice. Price does not track stat: the 22M arm is not four times the 452K arm on damage. And level does not track quality either — the Lv2 Nemesis head has less HP than the Lv1 Phoenix head, because the slot's job and the family differ.

Cards we only saw by name, without reading every number:

Name	Where it appeared	What we could read
Omega	Part wall, 03:20 in the same recording	Name only; stats not read
Lunaris	Part wall, 03:20 in the same recording	Name only; stats not read
Dreadbot	Space floors, asked about in the community channel	Players treat it as a floor enemy; we did not see its floor
Cryovela	Asked about in the community channel	Name only; no price or slot confirmed
Atom	Codes reward (AT0M3)	Exclusive robot tied to a hidden code; stats not read

A head card also carried two numbers at once in one frame — 13.7 damage and 6.15% — but the same slot showed a different layout two frames later, so we do not publish it as a complete row.

Set or single part?

Second view of the part wall showing higher-level parts and their prices

Same wall a moment later: higher level parts, much higher prices.

The Perfect trait gives +10% across a robot built from six parts of one family, and Update 1 made it apply to robots you already own. That changes the arithmetic: a matched set can be better than the best individual part you own in one slot.

Before you break a set, check the two things that actually change:

What the new part adds over the old one in the same slot.
What the set loses if the new part is a different family.

If the swap drops you from six matching parts to five, you are trading +10% on everything for one better card.

Index and Early parts

The Index lists the robot families that exist, and completing a whole Index tier pays a reward plus a permanent boost. Early parts is the setting that chooses which tiers the lever rolls, which is how you chase one family instead of accepting whatever appears.

Those two together are the honest answer to "how do I collect a set": pick the family, set Early parts to its tier, then roll.

What is confirmed, and what is not

Confirmed from the game itself: the six slots and the 0-of-6 counter, the three-number card layout, the part level printed on each card, and the eleven values in the tables above.

Not confirmed:

The full part pool. The store page advertises more than 100 robots; we have eleven cards, not the pool.
Whether part levels can be raised. Players say they cannot and that parts arrive at a level from the roll; we did not test it.
What the percentages mean. Two cards show a percentage without naming the stat.
Whether a family's tier changes its stat curve. We have one or two cards per family at most.

Where the game shows the real value is the card in front of you and the Index panel. Use those over anything in this table when they disagree, and note the date: these cards were read on 25 October 2026.