Verify your Ripster.gg roll

Verified: reproduces real results

Recompute any past Ripster.gg result on your own device using Ripster.gg's published algorithm. Nothing you paste leaves your browser.

Live verifier

0 network requests

Step 1Where did you play?

Using Ripster box / upgrade: HMAC-SHA256 over clientSeed:noncedetails

HMAC-SHA256 keyed with the server seed over clientSeed:nonce. The first 8 hex characters become a 32-bit integer, divided by 2^32 and multiplied by 100 for a roll in [0, 100). Items are sorted by item ID and selected by cumulative probability: the first item whose cumulative probability is at least the roll wins.

Where to find your numbers on Ripster.gg:

Before rolling, copy the Server Seed Hash from the Provably Fair modal (also recorded per roll in Account History).
After the roll, open the Provably Fair modal to copy the Server Seed, Client Seed and Nonce.
Change your Client Seed anytime in Account Settings; doing so reveals the current Server Seed so all past rolls become verifiable.

Source: Ripster.gg's own fairness page

Step 2Paste your numbers

Server seedThe site's secret number, revealed after your roll (or when you rotate seeds).

Client seedYour number. Find it in the site's fairness settings.

NonceThe roll counter. Copy it from the same screen as your seeds.

Result the site showedoptionalWhat the site said you rolled. We'll compare automatically.

Server seed hashoptionalThe fingerprint shown BEFORE you played. Proves the seed wasn't switched.

Runs entirely on your device via your browser's built-in cryptography. Don't take our word for it: open DevTools → Network, click the button, and watch: zero requests.

Where to find your seeds on Ripster.gg

1
Before rolling, copy the Server Seed Hash from the Provably Fair modal (also recorded per roll in Account History).
2
After the roll, open the Provably Fair modal to copy the Server Seed, Client Seed and Nonce.
3
Change your Client Seed anytime in Account Settings; doing so reveals the current Server Seed so all past rolls become verifiable.

What we can check on Ripster.gg

Per-game status. "Verified" means our implementation reproduced a real, documented result for that game. We never list a game on trust.

Game	Algorithm	Status
Box open / upgrade	HMAC-SHA256	Verified Cross-checked against Ripster's own verifier, 2026-07-08 (roll 52.5587 vector).
Battle round (RNG v2)	HMAC-SHA256	Awaiting confirmation Published formula implemented; no real battle vector yet.

The honest fine print

A passing check proves a specific outcome came from numbers fixed before you played. It does not prove Ripster.gg will honour a withdrawal, or say anything about the site beyond this one result. Fair math and a trustworthy business are different things: how we verify and what it means.

More tools: batch-verify a nonce range · check your luck vs the odds · all platforms