Rain.gg
Rain.gg is a newer CS2 case site with case opening, battles and a free-rewards angle, but it is still gambling with a negative expected value.
Launched around 2020, Rain.gg offers case opening, case battles and regular free cases and giveaways alongside paid play. Draws are provably fair and skins withdraw to your Steam inventory. The free rewards are a hook to keep you coming back, so keep any spending within a budget you can afford to lose.
Go to Rain.gg → 18+ · GamblingKey facts
| Type | Case opening site (gambling) |
| Provably fair | Provably fair — each result can be verified via published seeds and hashes. |
| Min. deposit | Low — small deposits accepted via crypto or skins. |
| Payout | Skins to your Steam inventory; crypto options where supported. |
| Payment | Cryptocurrencies and Steam skins; card options via third-party providers where available. |
| Bonus | Free cases, giveaways and promo codes are offered periodically; values vary and are not guaranteed. |
| Since | 2020 |
⚠️ 18+ · Play responsibly
Opening cases is gambling based on chance. It is entertainment, not a way to make money: on average a player spends more than they get back. Play only with money you can afford to lose, check the fairness (provably fair), do not try to "win back" losses, and take breaks. Access is only for people aged 18+ and only where it is legally permitted. When it stops being entertainment — stop and get help: begambleaware.org.
Pros and cons
Pros
- Case opening and case battles with provably-fair results.
- Regular free cases and giveaways alongside paid play.
- Clean, modern interface that is easy to navigate.
- Skins withdraw to your Steam inventory.
Cons
- It is gambling with a negative expected value: the house edge means most players lose over time and you can lose your whole deposit.
- Free cases and giveaways are a hook designed to encourage repeat, paid play.
- As a newer site it has a shorter track record, and availability varies by country.
How it works
- Confirm you are 18+ and that these sites are legal where you live, then sign in with Steam.
- Deposit only a small amount you can afford to lose, via crypto or skins.
- Open a case or join a battle, check the provably-fair details, and accept that outcomes are random.
- Withdraw any skins you win to your Steam inventory, or stop once your budget is spent.
Remember: the result of every opening is random. The chance of an expensive item is small, and "on average" opening is a loss. If you need a specific skin — it is cheaper and more predictable to buy it on a marketplace.
Bonus / Promo Code
Free cases, giveaways or promo codes do not remove the risk, come with wagering and usage terms, and offer no guaranteed profit. A bonus does not remove the risk: you will find the wagering terms on the site, and it is not a guaranteed win.
Frequently Asked Questions (FAQ)
Is it legal?
It depends on your country and local law, and you must be at least 18 (or the legal age where you live). Case-opening is gambling and is restricted or banned in some places — check your own jurisdiction before using it.
What is provably fair?
Provably fair is a cryptographic method that lets you verify an opening was not manipulated. The site publishes a hashed seed before the draw and reveals it afterwards so you can confirm the result yourself.
Can you make money?
On average, no. The site builds in a house edge, outcomes are random, and over time the expected result is a loss. Treat any winnings as luck, not income.
How much should I deposit?
Only money you can afford to lose entirely. Set a strict budget before you start, never chase losses, and stop when you reach your limit.
Where can I get help with gambling?
If gambling stops being fun or feels hard to control, seek support. Free, confidential help and self-assessment tools are available at begambleaware.org.
How we rated
By transparent criteria: fairness (provably fair), reputation and age, convenience of depositing/withdrawing skins, support and transparency of terms. We do not publish fabricated reviews and do not promise any winnings. The rating is editorial.