Wiki
CS2 mechanics: float, odds, stickers, knives
What the numbers actually do in CS2 — without the case-site copy.
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CS2 Case Odds
CS2 case odds are the published probabilities for each rarity tier when opening a Valve case. Valve publishes the rates per tier, but the per-skin distribution within a tier is uniform. The knife/glove rate is the most-cited number; the mid-tier rates dominate the actual outcome distribution.
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CS2 Float Values
A float value is a number between 0 and 1 attached to every CS2 skin instance, controlling how visibly worn the finish appears. Two skins with the same name and pattern can look meaningfully different at low vs high float. Float values are immutable for the lifetime of the skin instance.
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CS2 Knife Rarity
Knife rarity in CS2 is a layered concept — case rarity (which case the knife came from), finish rarity (uncommon vs common finishes within that knife's pool), and pattern rarity (specific pattern indexes that produce desirable visual results). The 0.26% case-opening rate is the entry point; everything beyond that is pool composition and pattern.
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CS2 Stickers
CS2 stickers are cosmetic decals applied to weapon skins. They come in four base finishes (paper, holographic, foil, gold) plus a small number of historical variants. Major-tournament stickers from past CS:GO events behave as collector assets; modern stickers behave as cosmetic loadout pieces.