Maximize your star value with data-driven insights. Compare expected returns across all Armory redemption options using real-time market data from multiple vendors.
For each redemption option, we analyze its complete pool of items and fetch real-time pricing data. Items drop with specific rarity-based probabilities (e.g., 1/781 for Covert skins in collections). We weight each item's price by its drop chance and sum them to get the Expected Value—the average amount you'd receive per redemption if you opened many.
For skins with exterior variants (Factory New, Battle-Scarred, etc.), we calculate wear probabilities based on float ranges, accounting for the unboxable gaps at wear boundaries (0.07-0.08, 0.15-0.16, 0.38-0.39, 0.45-0.46). This ensures accurate modeling of what you'll actually receive.
Avg ROI is your most reliable metric. While ROI uses your preferred vendor, Avg ROI computes the expected return across all major vendors (Buff163, CSFloat, CSGORoll, etc.) and then averages the results using statistical outlier removal.
How it works: We calculate the ROI for each vendor independently, then apply Interquartile Range (IQR) filtering to remove extreme outliers. This prevents a single vendor with unusual pricing from skewing your assessment. The result is a robust, market-wide view of value that's resistant to price manipulation or temporary fluctuations.
💡 Pro tip: If Avg ROI is significantly higher or lower than ROI, it means your preferred vendor has unusual pricing for that pool. Use Avg ROI as your primary decision metric for the most accurate market assessment.
ROI shows the percentage return using your preferred vendor (set in the header). It's calculated as: ROI = (EV / Cost) × 100%
• 110% ROI = You get €1.10 of value per €1.00 spent (10% profit)
• 100% ROI = Break-even point
• 90% ROI = You lose €0.10 per €1.00 spent (10% loss)
