The Rain.gg referral code is WELC. Enter it in the referral field when you register and you get 3 free cases immediately plus a 5% bonus on deposits. RAIN9 is a working alternative that pays exactly the same.
Checked by The raingg.net Editorial Team· Last verified
Both pay identically. The honest answer is that no Rain.gg referral code pays more than another — they are affiliate links, not tiered offers. Pick either one.
| Code | Free cases | Deposit bonus | Best for |
|---|---|---|---|
| WELC Our pick | 3 | 5% | New accounts |
| RAIN9 | 3 | 5% | If WELC will not apply |
Both codes re-tested on a live account on September 17, 2026. One referral code per account — it is locked in at registration and cannot be changed later.
New accounts
The default Rain.gg referral code for new accounts — 5% deposit bonus plus 3 free cases, applied at signup.
If WELC will not apply
The alternative Rain.gg referral code — identical 5% deposit bonus and 3 free cases, useful when WELC will not apply.
The field is on the registration form, not in a separate promo page — which is why people often miss it and end up with no code attached at all.
Register with Steam or email. Most CS2 players use Steam so skins trade straight through.
On the signup form the referral input is often collapsed behind this link. Already registered? Settings → Referral holds the same field.
Codes are not case sensitive. If it is rejected, the account already has a referrer attached — try RAIN9 on a fresh account.
Your 3 free cases appear in your inventory right away. The 5% attaches to deposits from then on.
On Rain.gg these are all the same thing. There is one field, it takes one code, and it is applied once at registration. Sites listing "promo codes" and "referral codes" as separate offers are listing the same affiliate codes twice.
Credited the moment the code applies. They are entry-level cases — worth opening, not worth planning around. Anyone promising a knife from them is selling you something.
Added on top of what you deposit. On a $20 deposit that is $1 — useful, but it does not change the maths of a gambling site. Check Rain.gg's current terms before depositing.
Everything that actually matters about the code, in one place.
| Referral code | WELC (alternative: RAIN9) |
|---|---|
| Reward | 3 free cases + 5% deposit bonus |
| Where to enter it | Referral field on the Rain.gg signup form |
| When it must be entered | At registration — it cannot be added later |
| Codes per account | One, permanently locked after signup |
| Deposit required | No — the 3 free cases are credited without one |
| Cost to use | Free |
| Expiry | None — affiliate codes stay active indefinitely |
Reviewed by The raingg.net Editorial Team · Last verified
raingg.net is an independent affiliate site and is not operated by Rain.gg. We may earn a commission if you sign up through our links — your bonus is identical either way. 18+ only.
The Rain.gg referral code is WELC. Enter it in the referral field when you register and you get 3 free cases straight away plus a 5% bonus on every deposit. RAIN9 is a working alternative that pays exactly the same. Both were checked on September 17, 2026.
The referral code field appears on the Rain.gg registration form, directly under your account details — it is sometimes collapsed behind a "Have a referral code?" link. If you have already registered, open Settings and look for the Referral or Promo section, where the same field appears.
On Rain.gg they are the same thing. "Referral code", "promo code" and "coupon code" all describe the affiliate code you enter at signup for 3 free cases and a 5% deposit bonus. Rain.gg uses one field for it, so you do not need to hunt for a separate promo box.
You get 3 free cases. They are credited to your inventory as soon as a valid referral code is applied, before you deposit anything. The cases are entry-level, so treat them as a way to try the platform rather than as a meaningful payout.
Almost always this means a code is already attached to the account. Rain.gg allows one referral code per account, applied at registration and never changed afterwards. If WELC will not apply, try RAIN9 on a genuinely new account; if neither takes, your account already has a referrer.
No. The referral code is locked to your account at registration and cannot be swapped later, which is why it is worth entering one before you finish signing up. If you skipped the field entirely, contact Rain.gg support — they will not always add one retroactively.
Affiliate referral codes like WELC and RAIN9 do not carry an expiry date — they stay active as long as the affiliate account behind them does. That is different from limited-time site promotions. We re-test both codes and last confirmed them working on September 17, 2026.
Neither pays more — both give 3 free cases and a 5% deposit bonus. We list WELC first because it is the one we test first and it applies cleanly on new accounts. Use RAIN9 if WELC does not take. Any site claiming one pays a bigger bonus is guessing.
3 free cases at signup and 5% on deposits. Enter it in the referral field before you finish registering — it cannot be added afterwards.
Use WELC on Rain.gg18+ only. Gambling involves risk. Affiliate link.