CS2 Case Drop Rates & Odds Explained — Complete Probability Guide (2026)
How likely are you to unbox a knife or glove from a CS2 case? Valve has never officially published exact drop rates, but the community has reverse-engineered them from millions of case openings. This guide compiles the most widely accepted CS2 drop probabilities and explains what they mean for your wallet.
Below you'll find every active CS2 case with current market prices. Use this alongside the probability data to calculate your expected value before opening any case.
CS2 Rarity Tiers & Their Drop Odds
Based on community research from millions of openings, the approximate drop rates are: Consumer Grade (Mil-Spec Blue) ~79.92%, Industrial Grade (Restricted Purple) ~15.98%, Classified (Classified Pink) ~3.2%, Covert (Covert Red) ~0.64%, and Exceedingly Rare (Knife/Glove/Gold) ~0.26%. These rates apply universally across all standard CS2 cases.
Expected Value & ROI Math
Expected Value (EV) is calculated by multiplying each possible drop's market price by its drop probability, then summing all outcomes. If a case costs $1.00 and the EV of its drops is $0.65, your average return per opening is -$0.35 (a -35% ROI). Very few cases have positive EV — the ones that do are highlighted in our Best ROI Cases hub.
StatTrak and Special Patterns
Roughly 10% of drops from cases are StatTrak versions, which track kills. StatTrak versions of the same skin typically cost 2–5× more. Special patterns like Doppler Phase 2 (Pink), Fade percentages, and Case Hardened blue gem patterns add another layer of rarity and value on top of the base drop rate.
Why Understanding Odds Matters
Opening CS2 cases is entertainment, not investment. On average, you will lose money. Understanding the math helps you set a budget, pick the best cases when you do open, and avoid spending more than you're comfortable losing. Use our simulator to test your luck with zero real cost.
本月市场深度分析与预算指南
在 2026年6月 的 Counter-Strike 2 饰品交易市场中，针对 Sticker 的特定细分需求呈现出了非常有趣的波动。作为玩家个性化配置的重要组成部分，这一类别的皮肤在近期交易中保持了极高的活跃度。通过对我们数据库中当前收录的 25 款热门饰品进行深度实时分析，我们为您整理了本月的市场趋势与购买建议。
根据最新的市场交易数据，当前该榜单中性价比最高、价格最亲民的选择是 AWP | AWP | 巨龙传说 (崭新出厂)，其参考价格仅为 $12101.01；而该类别中定位最高端的款式则是 Sticker | 印花 | iBUYPOWER（全息）| 2014年卡托维兹锦标赛，参考价格达到 $78781.39。整个榜单的平均交易价格约为 $NaN。与上个月相比，该类别的整体均价呈现出约 3.4% 的稳步下调，这为不同预算层级的买家提供了非常合理的切入时机。
在 CS2 采用全新的 Source 2 引擎后，这一类饰品的视觉表现力得到了颠覆性的提升。特别是带有金属漆面、阳极氧化或高光涂装的皮肤，在全新全局光照系统下展现出了极为逼真的反射效果与色彩深度。即使是磨损度较低的入门级皮肤，其金属质感也远超前作，使得玩家无需花费高昂代价即可在游戏中获得极佳的视觉反馈。
结合当前的市场供需关系，我们建议预算有限的玩家优先锁定那些价格稳定、流通量大的经典款式，例如 AWP | AWP | 巨龙传说 (崭新出厂)。这类皮肤不仅保值率极高，而且在二级市场上极易变现。而对于追求独特视觉效果或有长期持有计划的玩家，则可以关注那些产出武器箱已进入稀有掉落池的款式，它们在未来往往伴随着更高的升值空间。
推荐清单与实时价格
Sticker | 印花 | Titan（全息）| 2014年卡托维兹锦标赛
This item commemorates the The 2014 EMS One Katowice CS:GO Championship. This sticker can be applied to any weapon you own and can be scraped to look more worn. You can scrape the same sticker multiple times, making it a bit more worn each time, until it is removed from the weapon.
Sticker | 印花 | iBUYPOWER（全息）| 2014年卡托维兹锦标赛
This item commemorates the The 2014 EMS One Katowice CS:GO Championship. This sticker can be applied to any weapon you own and can be scraped to look more worn. You can scrape the same sticker multiple times, making it a bit more worn each time, until it is removed from the weapon.
Sticker | 印花 | Reason Gaming（全息）| 2014年卡托维兹锦标赛
This item commemorates the The 2014 EMS One Katowice CS:GO Championship. This sticker can be applied to any weapon you own and can be scraped to look more worn. You can scrape the same sticker multiple times, making it a bit more worn each time, until it is removed from the weapon.
Sticker | 印花 | Vox Eminor（全息）| 2014年卡托维兹锦标赛
This item commemorates the The 2014 EMS One Katowice CS:GO Championship. This sticker can be applied to any weapon you own and can be scraped to look more worn. You can scrape the same sticker multiple times, making it a bit more worn each time, until it is removed from the weapon.
Sport Gloves | Pandoras Box (factory new)
graffiti | EMS Katowice 2014 Challengers
This item commemorates the The 2014 EMS One Katowice CS:GO Championship. This capsule contains a single EMS One Katowice 2014 participant sticker. A portion of the proceeds is shared equally among the included organizations.
graffiti | EMS Katowice 2014 Legends
This item commemorates the The 2014 EMS One Katowice CS:GO Championship. This capsule contains a single EMS One Katowice 2014 participant sticker. A portion of the proceeds is shared equally among the included organizations.
Sport Gloves | 运动手套（★） | 树篱迷宫 (崭新出厂)
Sticker | 印花 | Team Dignitas（全息）| 2014年卡托维兹锦标赛
This item commemorates the The 2014 EMS One Katowice CS:GO Championship. This sticker can be applied to any weapon you own and can be scraped to look more worn. You can scrape the same sticker multiple times, making it a bit more worn each time, until it is removed from the weapon.
Sticker | 印花 | Team LDLC.com（全息）| 2014年卡托维兹锦标赛
This item commemorates the The 2014 EMS One Katowice CS:GO Championship. This sticker can be applied to any weapon you own and can be scraped to look more worn. You can scrape the same sticker multiple times, making it a bit more worn each time, until it is removed from the weapon.
Sticker | 印花 | bondik（金色）| 2018年波士顿锦标赛
This item commemorates the 2018 ELEAGUE Boston CS:GO Championship. This sticker can be applied to any weapon you own and can be scraped to look more worn. You can scrape the same sticker multiple times, making it a bit more worn each time, until it is removed from the weapon. This gold sticker was autographed by professional player Vladyslav Nechyporchuk playing for Tyloo at Boston 2018. 50% of the proceeds from the sale of this sticker support the included players and organizations.
Sticker | 印花 | NiKo（金色）| 2017年克拉科夫锦标赛
This item commemorates the 2017 PGL Krakow CS:GO Championship. This sticker can be applied to any weapon you own and can be scraped to look more worn. You can scrape the same sticker multiple times, making it a bit more worn each time, until it is removed from the weapon. This gold sticker was autographed by professional player Nikola Kovač playing for FaZe Clan at Krakow 2017. 50% of the proceeds from the sale of this sticker support the included players and organizations.
Butterfly Knife | Gamma Doppler Emerald (stattrak factory new)
M4A4 | M4A4（StatTrak™） | 咆哮 (崭新出厂)
AWP | AWP | 永恒之枪 (崭新出厂)
Butterfly Knife | Doppler Black Pearl (factory new)
Sticker | 印花 | waterfaLLZ（金色）| 2018年波士顿锦标赛
This item commemorates the 2018 ELEAGUE Boston CS:GO Championship. This sticker can be applied to any weapon you own and can be scraped to look more worn. You can scrape the same sticker multiple times, making it a bit more worn each time, until it is removed from the weapon. This gold sticker was autographed by professional player Nikita Matveev playing for Quantum Bellator Fire at Boston 2018. 50% of the proceeds from the sale of this sticker support the included players and organizations.
AWP | AWP | 巨龙传说 (崭新出厂)
常见问题与解答
Q:从CS2箱子中开出刀的概率是多少？
大约0.26%，即平均每385个箱子中有一个。这个概率在所有标准CS2武器箱中保持一致。
Q:CS2箱子的概率是否被操纵？
没有证据表明Valve操纵概率。社区收集的数百万次开箱数据与约0.26%的出刀率一致。然而，方差意味着个人结果可能与平均值相差很大。
Q:哪个CS2箱子的概率最好？
所有CS2武器箱的稀有度等级掉落率相同。'价值'的差异来自每个箱子内皮肤的价格，而非概率本身。请查看我们的最佳ROI箱子页面，了解预期价值最高的箱子。
Q:我需要开多少个箱子才能得到一把刀？
从统计上看，你需要开大约385个箱子才有63.2%的概率至少获得一把刀（1 − (1−0.0026)^385）。但随机性意味着你可能第一次就开出，也可能开1000个都没有。
Q:第三方开箱网站的概率与Steam不同吗？
第三方开箱网站设定自己的概率，可能与Valve的不同。请务必检查网站是否可证明公平，并核实其公布的概率。我们的模拟器仅使用Valve的官方掉落率。