Sample roll-out
12 rounds at 50/50 threshold · verification cycleThreshold index
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 the brand 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 provably-fair explainer at the provably-fair primer, the per-draw verification framework is familiar; this page is the Stake-specific reproduction.
- The verified fairness layer at Stake Keno (HMAC-SHA256 reproduces correctly across our cycle sample).
- The Stake Keno verification routine replicable in 15 minutes on any laptop.
- The RTP context for Keno at Stake (cluster baseline expected; precise per-game figure pending).
- Number-pick lottery math: hypergeometric distribution and match-count payouts.
- Three risk tier and pick-count configuration depth.
- Where Stake Keno sits as cluster baseline reference across the audit set.
What is verified, what is pending at Keno
| 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 the brand 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 the brand'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.
Provably fair on Keno: the verification routine
- 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 audit-set 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 the audit set
| Brand | Keno RTP | Notable feature |
|---|---|---|
| Stake | Expected 99 percent (pending) | Industry pioneer, 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 |
Bankroll fit for Stake Keno per player profile
- Reference-implementation-trust player: Stake's HMAC implementation is the published reference.
- Long-term VIP-grind player: Stake's deep VIP ladder applies.
- Low-pick conservative player: 1-3 pick configurations at low-tier risk produce slow-grinding shape.
- Medium-pick balanced player: 5 picks Medium is the cross-brand balanced configuration.
- High-pick lottery chaser: 7-10 picks at High risk is lottery shape with extreme variance.
- Welcome-bonus player: Stake is NOT the choice.
- EV-flat-strategy player: pick count and risk tier control variance, not EV.
- Precise-RTP-figure player: if precise per-tier per-pick-count Keno RTP figure matters (pending operator publication), request operator clarification.
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.
Platform context behind this Stake Keno audit
- Launched: 2017.
- Licence: Curaçao eGaming.
- Operator: Medium Rare N.V., Curaçao-incorporated.
- Deposit currencies: 22 cryptos.
- Withdrawal currencies: 12 cryptos.
- Minimum deposit: $1 USD-equivalent.
- Withdrawal speed: instant for crypto (~3 minutes).
- Game library: 4500 titles plus ~30 in-house Stake Originals.
- Bonuses: NO welcome bonus; VIP-tier Stake Reload; Bronze through Obsidian VIP ladder.
- Restrictions: threshold-based KYC.
- Affiliate disclosure: this site earns commission from registrations at Stake.
When the Keno math meets the responsible-gambling line
- 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
For the full brand context behind this audit, open the Stake brand dossier).
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 (industry pioneer), 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 best 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.
Stake Keno vs Shuffle Keno, what is different?
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 best 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.
Reading after this Keno teardown
- For the binomial bucket-drop reference, read the binomial bucket-drop teardown.
- For the reciprocal multiplier curve build, read the reciprocal-curve teardown.
- For the threshold pick build, read the threshold-pick teardown.
- For the 5x5 grid press-your-luck, read the grid press-your-luck teardown.
- For the 1,000,000x target multiplier, read the target-multiplier teardown.
- For the card-sequence pick, read the card-sequence teardown.
- For the tile climb with difficulty modes, read the tile-climb teardown.
- For the slider-multiplier mechanic, read the slider-multiplier teardown.
- For the Egyptian-themed slot-style original, read the slot-style teardown.
- For the wheel-spin segment pick, read the wheel-spin teardown.
- For the samurai-themed arcade-style original, read the arcade-style teardown.
- For the cross-brand provably-fair fundamentals, read the provably-fair primer.
- For our editorial methodology, see our editorial methodology page.
Authority sources cited in this Stake Keno review
- The Stake provably-fair implementation page is the published reference.
- The Curaçao eGaming registry confirms Stake's licensed status under Medium Rare N.V.
- GamCare and BeGambleAware provide independent player-protection guidance.
The editor on this Stake Keno review is Karssen Avelara. HMAC-SHA256 fairness verification reproduced locally against Stake's published documentation. Per-game Keno RTP figure is expected at 99 percent cluster baseline pending separate operator publication. Maximum-payout figure at 10-pick High-risk full-hit and current VIP-tier-specific Stake Reload percentages are pending operator clarification. Corrections: editor@casino-originals.com.
Karssen Avelara · editor@casino-originals.com