Sites with provably fair systems cannot - the outcome is cryptographically committed before you open the case, and you can verify it afterward. Sites without provably fair have full control over outcomes and could adjust drop rates at any time with no way for users to detect it. Always verify the system is functional by checking past openings against the published verification tool.

Most case sites have a house edge of 10-40%, meaning you get back $0.60-0.90 in expected value per $1 spent. Cheap cases ($0.50-2) tend to have worse returns than mid-range cases. Sites that publish exact drop percentages and expected return rates for each case are significantly more trustworthy than those that don't.

On established platforms, yes - skins are delivered via automated trade bots, usually within minutes to a few hours. The risk is with lesser-known sites that restrict withdrawals through high minimum thresholds, sudden KYC requirements after winning, or limited bot inventory. Before depositing, test the withdrawal process with a small amount.

Countries including the UK, Belgium, and the Netherlands classify paid random-outcome mechanics as gambling, requiring a license. Licensed sites (Curacao, Malta Gaming Authority) operate under external oversight with fairness requirements. Unlicensed sites have no regulatory body to appeal to if disputes arise. Check your local laws before depositing.

Two or more players open the same case simultaneously, with each outcome determined independently by the provably fair system. The player whose items have the highest combined value wins all items from every participant. The site takes a 5-15% cut built into case pricing. Expected returns are the same as regular openings - the difference is winner-takes-all.

Higher-priced cases contain higher-value skins but the house edge percentage is often the same or worse than cheap cases. A $50 case doesn't give better odds of profit than a $2 case - it just has bigger potential payouts. The metric that matters is expected return rate - the average value per dollar spent - not the case price.