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Frequently Asked Questions

Your quick-reference guide to optimal strategies, profitability and terminology in Roblox COS.

The recommended progression is:

  1. Open the Free Case until your balance reaches $100.
  2. Switch to the Gallery Case until you hit $300.
  3. From $300+ open the Fever Case for the highest long-term profit potential.
Based on the latest market data the Fever Case has the highest positive Net Expected Value, making it the most profitable crate to spam once you have sufficient bankroll.
The Weapon Case 3 offers the best odds for a Karambit Case-Hardened Blue Gem because it has the highest net ev with the weapon in.

Bankroll is the amount of $ you should have before opening a case if you want at least a given chance of avoiding bankruptcy. It is calculated from the case's variance and cost.

Confidence is that target probability. For example, at 95 % confidence the suggested bankroll is big enough that, statistically, you will survive 95 % of possible unlucky streaks.