Review · 1 min read·by CS2Apps editorial
CSROI
Case opening + Armory ROI calculator with arbitrage scanner.
CSROI is best for quick "ev of opening a case right now" answers. Free to use.
What it does
CSROI is the de-facto standard for "should I open this case?" math. It pulls live Steam Market prices for every drop from every active and discontinued case, weights by drop probability, subtracts Steam fees, and surfaces the expected return of one opening. The same engine drives a comparable view for the CS2 Armory rotation. A separate page tracks cross-marketplace arbitrage opportunities.
The site is free, fast, and updated frequently. Its main weakness: limited explanation of methodology and no historical charts — you see today's number, not the trend.
Pros & cons
Pros
- Most up-to-date case ROI calculator on the web
- Covers active, discontinued, and rare cases
- Includes Armory rotation calculator
- Includes a competent arbitrage scanner
Caveats
- No historical ROI chart — only today's number
- Methodology not fully transparent
- Single price source per item (Steam Market)
CSROI compared head-to-head
Direct comparisons with the closest alternatives.
- CSROI vs CSStonksBoth sites cover CS2 cases, but they answer different questions. CSROI tells you the expected return of opening a case right now. CSStonks tells you what supply trends are doing to that case's price. You probably want both — here's when to use which.3/6 wins
- CSROI vs CSStonks vs Pricempire3-wayThree tools, three angles on the CS2 case market. CSROI tells you the expected return of opening a case right now. CSStonks tells you which cases are gaining or losing supply over time. Pricempire ties cases into the broader market with cross-marketplace pricing + an API. Each answers a different question — serious case investors use all three.4/9 wins
Compare CSROI with…
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free · Case ROI Calculators
CSROI