Sample roll-out
12 rounds at 50/50 threshold · verification cycleThreshold index
What is Keno? A number-pick lottery: pick a set of numbers (typically 1 to 10) from a pool (typically 1 to 40), the game draws a winning subset, and you are paid based on how many of your picks landed. More picks plus more hits equals higher payout. The lottery-shape payout creates wide variance even at standard cluster RTP.
The Stake Keno is the canonical number-pick lottery game where the player selects between 1 and 10 numbers from a 40-number pool and Stake draws 10 numbers; payouts trigger based on match count. Stake launched in 2017 under Medium Rare N.V. operating entity and Curaçao eGaming licence; the Keno implementation is the cross-brand reference for HMAC-verifiable number-pick lottery mechanics. Per-game RTP at Stake for Keno is not separately published on the per-game RTP screen; given Stake's brand-wide 99 percent cluster baseline across published mechanical originals, we treat the Keno RTP as expected 99 percent baseline pending operator publication.
If you have read the cross-brand open-cryptography explainer at the open-cryptography primer, the per-draw verification framework is familiar; this page is the Stake-specific reproduction.
Coverage map: Stake Keno confirmed and unknowns
| Fact | Status | Source |
|---|---|---|
| Fairness method = HMAC-SHA256 | Verified | Stake published implementation docs |
| Server-seed commit-reveal workflow | Verified | First-hand reproduction at Stake |
| Game type = number-pick lottery | Verified | Stake brand-published game info |
| Casino licence (Curaçao eGaming) | Verified | Stake site footer plus Curaçao registry |
| Brand (Medium Rare N.V., Curaçao-incorporated, since 2017, audited 2026) | Verified | Stake terms plus cross-reference |
| Stake Keno per-game RTP | Pending precise figure | Operator does not separately publish; brand-wide 99 percent cluster baseline expected |
| Number-pick range (1-10 picks from 40 number pool) | Verified standard | Stake game info screen |
| Three risk tiers (Classic, Low, Medium, High variants typical) | Verified standard | Stake game info screen |
| Auto-bet with stop-on-win / stop-on-loss conditions | Verified | Stake UI |
| Instant crypto withdrawals (~3 minutes) | Verified | Stake cashier docs |
| Threshold-based KYC | Verified | Stake terms |
| VIP Stake Reload (scales with tier) | Verified | Stake VIP screen |
| No welcome bonus | Verified | Stake terms |
| Maximum payout at 10-pick High-risk full-hit | Pending verification | Cross-brand standard up to 10,000x at maximum-difficulty configuration |
Per-game RTP context at Keno
- Brand-wide cluster baseline: Stake's published originals run at 99 percent on Crash, Dice, Mines, Plinko, Limbo, HiLo, Dragon Tower (7 verified). The most plausible figure for Keno at Stake baseline is also 99 percent.
- Pending operator confirmation: until Stake publishes the Keno-specific RTP figure on the per-game RTP screen, we treat it as 99 percent expected with named "pending" status.
- Keno-specific paytable nuance: Keno's effective RTP can vary slightly per risk tier (Low vs High) because different multiplier tables produce different match-frequency-weighted outcomes. The 99 percent baseline applies as an average across tiers; per-tier specifics may differ marginally.
- Cross-brand context: Shuffle Keno at expected 99 percent (Stake-alumni team, precise figure pending). Yeet Keno at 99 percent. Roobet, Duel, Rollbit do not have flagship Keno in our coverage.
- What this gap does NOT change: HMAC-SHA256 fairness verified; verification routine works identically; operational context unchanged.
Number-pick lottery math at the expected baseline
- Number pool: 40 numbers (standard cross-brand crypto-keno pool size).
- Player picks 1-10 numbers (configurable). Operator draws 10 numbers from the pool.
- Win is based on how many of the player's picks match Stake's drawn numbers (matches range 0 to N-picked).
- Three risk tiers (Low, Medium, High typically) determine the multiplier table for each match count.
- Higher risk tier amplifies multiplier for top-match outcomes at the cost of lower multipliers (or zero return) for low-match outcomes.
- All risk tiers at the same pick count target the same expected 99 percent baseline RTP; variance shape differs.
- Probability of matching k of n picks when 10 are drawn from a pool of 40 follows the hypergeometric distribution.
- The 99 percent figure is expected per Stake's brand-wide baseline.
The mechanic is canonical cross-brand Keno. The HMAC derivation is identical to Stake's other published Originals.
How to reproduce Stake Keno fairness locally
- Open the Stake Keno fairness panel and copy the published server-seed hash before placing a bet.
- Place a sample of 20-50 draws at a consistent pick-count / risk-tier configuration (for instance 5 picks Medium). Record per-draw inputs: client seed, nonce, recorded drawn numbers, recorded match count, recorded payout.
- After the sample: rotate the server seed in the Stake account settings. Stake reveals the raw seed.
- Run SHA-256 locally on the revealed seed. Result must match the captured commitment.
- For each draw in the sample: run HMAC-SHA256 over (revealed seed, client seed, nonce, cursor). Apply Stake's published Fisher-Yates derivation onto the 40-number pool; the first 10 positions are the drawn numbers.
- Confirm the reproduced drawn numbers match the recorded numbers on every draw.
In our cycle reproduction on Stake, the HMAC-replay flow worked correctly on every sampled Keno draw.
Stake Keno rtp at expected 99%: cluster baseline framing
- Expected 99 percent base RTP (pending precise per-game publication; brand-wide cluster baseline).
- Shuffle Keno at expected 99 percent (Stake-alumni team).
- Yeet Keno at 99 percent.
- Duel / Rollbit / Roobet / Gamdom / BetFury / Winna / Fairspin: no flagship Keno in our coverage.
- Stake has no token rakeback; relies on VIP Stake Reload.
- Stake Keno is the coverage reference implementation alongside Shuffle Keno as the immediate Stake-alumni peer.
Pick-count configuration depth at Stake Keno
- 1 pick Low: simple even-money-ish payout on a single match. Probability of any one picked number being among the 10 drawn equals 25 percent.
- 3 picks Medium: medium variance, modest top-multiplier on 3-of-3 match. Probability of matching all 3: approximately 1.2 percent.
- 5 picks Medium: balanced configuration. Probability of matching all 5: approximately 0.04 percent.
- 7 picks High: lottery-shape configuration with very high top-multiplier on 7-of-7. Probability of 7-of-7: approximately 0.00008 percent.
- 10 picks High: extreme lottery. Probability of 10-of-10: approximately 0.0000001 percent (about 1 in 800 million). Top multiplier cross-brand reaches into 10,000x territory.
- All configurations target the expected 99 percent baseline RTP; pick count and risk tier amplify variance without changing RTP.
Where Stake Keno sits across operator coverage
| Brand | Keno RTP | Notable feature |
|---|---|---|
| Stake | Expected 99 percent (pending) | Category-defining brand, reference implementation, deepest VIP track |
| Shuffle | Expected 99 percent (pending) | SHFL token rakeback, Stake-alumni team |
| Yeet | 99 percent | Cluster-standard Keno |
| Duel / Rollbit / Roobet / others | No flagship Keno in coverage | Different originals catalogues |
How Stake Keno compares to other Stake originals
- Stake Keno: the number-pick lottery (expected 99% baseline pending). This page.
- Stake Plinko: the verified 99 percent RTP binomial bucket-drop (1000x max); see the binomial bucket-drop teardown.
- Stake Crash: the verified 99 percent RTP reciprocal multiplier curve; see the reciprocal-curve teardown.
- Stake Dice: the verified 99 percent RTP threshold pick; see the threshold-pick teardown.
- Stake Mines: the verified 99 percent RTP 5x5 grid; see the grid press-your-luck teardown.
- Stake Limbo: the verified 99 percent RTP target multiplier (1,000,000x max); see the target-multiplier teardown.
- Stake HiLo: the verified 99 percent RTP card-sequence pick; see the card-sequence teardown.
- Stake Dragon Tower: the verified 99 percent RTP tile climb; see the tile-climb teardown.
- Stake Slide: the slider-multiplier mechanic; see the slider-multiplier teardown.
- Stake Scarab Spin: the Egyptian-themed slot-style original; see the slot-style teardown.
- Stake Wheel: the wheel-spin segment pick; see the wheel-spin teardown.
- Stake Blue Samurai: the samurai-themed arcade-style original; see the arcade-style teardown.
Where the Keno math intersects responsible-gambling boundary at Stake
- The verified fairness layer doesn't change the structural house edge. Expected 1 percent house edge produces $1 expected loss per $100 wagered.
- Lottery-shape configurations (7-10 picks at High risk) exploit reward-prediction cognition.
- VIP-tier-progression incentive may encourage higher session volume than baseline.
- If gambling has stopped being fun, neither operational track record nor VIP depth changes the situation. Free, confidential help: GamCare and BeGambleAware. Our player-protection limits page lists brand-side limits worth setting.
Frequently asked questions about Stake Keno
What is Stake Keno in one sentence?
Stake Keno is the canonical number-pick lottery mechanic at Stake, a 2017-launched Curaçao-licensed crypto-casino (category-defining brand), with HMAC-SHA256 fairness verified across our cycle, expected 99 percent cluster-baseline RTP (precise per-game figure pending operator publication), three risk tiers, and configurable 1-10 picks from a 40-number pool.
How does Stake Keno fairness work?
Stake uses HMAC-SHA256 fairness with operator-committed server seed, player-controlled client seed, per-draw nonce, and cursor. Drawn numbers derived via Fisher-Yates onto the 40-number pool; the first 10 positions are drawn.
What is the verified Stake Keno rtp?
Per-game Keno RTP at Stake is not separately published on the per-game RTP screen. Brand-wide 99 percent cluster baseline expected; pending operator confirmation.
What is the top-rated pick-count and risk-tier configuration?
There is no positive-EV configuration at 1 percent expected house edge. Optimal play is variance-driven: 1-3 picks Low for slow grinding, 5 picks Medium for balanced, 7-10 picks High for lottery shape.
What is the maximum payout on Stake Keno?
At 10 picks High risk with 10-of-10 match, cross-brand standard keno can reach approximately 10,000x bet. Probability of 10-of-10 approximately 1 in 800 million. Precise Stake ceiling pending operator clarification.
How does stake Keno vs Shuffle Keno, what is different? work?
Both share canonical number-pick mechanic, identical HMAC implementation. Both expected at 99 percent base RTP. Shuffle adds SHFL token rakeback; Stake has no native token.
Does VIP tier change Keno play?
At higher VIP tiers (Platinum-plus), the Stake Reload supplements the expected baseline RTP.
Should I play 1-pick or 10-pick for upper-tier chance?
1-pick has highest hit frequency (25 percent any-number-hits) but lowest top payout. 10-pick has astronomically low full-match probability (1 in 800 million) but highest top payout. EV is unchanged across pick count; variance differs.
Where to read next after Stake's Keno breakdown
- For the binomial bucket-drop reference, read more context.
- For the reciprocal multiplier curve build, read the rundown.
- For the threshold pick build, read the technical notes.
- For the 5x5 grid press-your-luck, read supporting analysis.
- For the 1,000,000x target multiplier, read follow-up reading.
- For the card-sequence pick, read focused review.
- For the tile climb with difficulty modes, read context piece.
- For the slider-multiplier mechanic, read the audit chapter.
- For the Egyptian-themed slot-style original, read the audit excerpt.
- For the wheel-spin segment pick, read side notes.
- For the samurai-themed arcade-style original, read the audit cycle notes.
- For the cross-brand open-cryptography fundamentals, read the related piece.
- For our editorial methodology, see our editorial methodology page.
Authority sources cited in this Stake Keno review
- The Stake open-cryptography implementation page is the published reference.
- The Curaçao eGaming registry confirms Stake's licensed status under Medium Rare N.V.
- that page and that page provide independent player-protection guidance.
