Is this an exact item stat tier list?

No. Exact item and upgrade stats were not confirmed from official public data, so this page ranks source-backed strategy priorities.

Why are some rows marked Needs check?

Rows are marked Needs check when public official data does not confirm the exact value or ranking.

P0 tier list page

Strategy priority list based on confirmed public mechanics. Exact item stat tiers are intentionally not fabricated.

Tier	Priority	Why it ranks here	Status
S	Correct shelf matching	The most source-backed priority because the official description centers the game on sorting and organizing items back onto shelves.	inferred from source
S	Upgrade planning	The official description confirms upgrades exist. Exact upgrade names, costs, and multipliers still need verification.	needs check
A	Fast interaction control flow	Official controls confirm interact, drop, place, and abilities inputs. Ranking is based on those confirmed controls, not hidden stats.	inferred from source
B	Bulk route planning	The 1000+ item claim supports route planning as a useful strategy, but exact aisle layouts and item pools need direct verification.	needs check
Needs check	Exact item or upgrade stat ranking	No official public item stat table was confirmed during research, so exact stat tiers are intentionally not invented.	needs check