- 什么是期望值?
- 期望值是按每种可能结果的概率加权的平均收益。它表示每次开箱或 trade-up 的平均预期收益。
- 我获利的概率是多少?
- 获利概率取决于市场价格和掉率。我们的计算器使用当前价格来估算获得盈利结果的概率。
- 掉率来自哪里?
- 掉率来自官方元数据和社区观测(若可用);用于正确估算结果分布。
- trade-up 比开箱更好吗?
- trade-up 通常更可预测,因为你控制输入;开箱则完全靠运气。最佳选择取决于预算和风险承受能力。
- What are the odds of getting a knife from a CS2 case?
- The odds of unboxing a knife or gloves from any CS2 case are approximately 0.26%, which means roughly 1 in 385 case openings. This drop rate is the same across all CS2 cases, regardless of price or content. You can use the Skinbase ROI calculator to see whether the potential knife value makes a specific case worth opening.
- What is profitability in CS2 case openings?
- Profitability measures whether the average value of items you receive from opening a case is higher than the cost of the case itself. Skinbase calculates this using live marketplace prices and official drop rates. A case is considered profitable when its expected value (EV) exceeds the purchase price, though most cases have negative profitability in the long run.