{"window_days":7,"from":"2026-09-14","games_returned":8,"games_withheld_below_min_bets":22,"min_bets":100,"method":{"estimator":"mean payout multiplier, currency independent","interval":"95%, mean plus or minus 1.96 standard errors","source":"each casino's own public bet feed, captured by us","sampling":"the feeds are rolling windows the operators publish; this is a sample of their flow, not the whole of it, and the selection rule is not visible to us","declared_rtp":"only Stake.com publishes a house edge, so declared_rtp and gap are null for other operators","selection_bias":"the feeds are the operators' own marketing surfaces and the selection leans toward winning rounds, so observed_return is UNCORRECTED and biased upward by an unknown amount that differs per operator. feed_bias reports 'curated' where an observed return above 100% proves the feed is incomplete, since no game returns more than it takes over the long run."},"confidence_levels":{"high":">=10000 bets","moderate":">=1000","low":">=100","insufficient":"<100"},"publishable":["low","moderate","high"],"source_kinds":{"observed":"Counted directly from the operator's public feed.","derived":"Computed from observed data through a documented method.","reported":"Published by the operator. We repeat it, we do not verify it.","estimate":"Model output carrying assumptions. Always a range."},"games":[{"casino":"Cloudbet","game":"Mines","provider":"cloudbet","bets":79243,"observed_return":0.6386972844029813,"declared_rtp":null,"gap":null,"std_error":0.03393924098715434,"ci95":[0.5721763720681589,0.7052181967378038],"max_multiplier":2505,"confidence":"high","margin":0.0665209123348225,"publishable":false,"withheld":"implausible","diverges_from_declared":null,"window":{"from":"2026-09-14","to":"2026-09-21"},"published_loss_share":0.8173718814280125,"feed_bias":"unknown","observed_return_note":"Uncorrected for feed selection. The operator chooses which rounds to publish.","source":{"bets":"observed","observed_return":"derived","declared_rtp":null,"gap":null}},{"casino":"Shuffle","game":"Mines","provider":"unknown","bets":15790,"observed_return":0.9287926192444722,"declared_rtp":null,"gap":null,"std_error":0.04296197176449007,"ci95":[0.8445871545860717,1.0129980839028727],"max_multiplier":404.10494505494506,"confidence":"high","margin":0.08420546465840054,"publishable":true,"withheld":null,"diverges_from_declared":null,"window":{"from":"2026-09-14","to":"2026-09-21"},"published_loss_share":0.6524382520582648,"feed_bias":"unknown","observed_return_note":"Uncorrected for feed selection. The operator chooses which rounds to publish.","source":{"bets":"observed","observed_return":"derived","declared_rtp":null,"gap":null}},{"casino":"Winna","game":"Mines","provider":"internal house games","bets":11892,"observed_return":4.89294368070972,"declared_rtp":null,"gap":null,"std_error":0.7494339671310419,"ci95":[3.424053105132878,6.361834256286563],"max_multiplier":8637.971,"confidence":"high","margin":1.4688905755768422,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-09-14","to":"2026-09-21"},"published_loss_share":0.5985536495122772,"feed_bias":"curated","observed_return_note":"This feed publishes more wins than it publishes losses, proven by an observed return above 100%. Read it as a floor on the operator's curation, not as the game's return.","source":{"bets":"observed","observed_return":"derived","declared_rtp":null,"gap":null}},{"casino":"Cloudbet","game":"Mines","provider":"spribe","bets":3818,"observed_return":0.07747596903419099,"declared_rtp":null,"gap":null,"std_error":0.006577244076111176,"ci95":[0.06458457064501308,0.0903673674233689],"max_multiplier":6.129,"confidence":"moderate","margin":0.012891398389177905,"publishable":false,"withheld":"implausible","diverges_from_declared":null,"window":{"from":"2026-09-14","to":"2026-09-21"},"published_loss_share":0.9620220010476689,"feed_bias":"unknown","observed_return_note":"Uncorrected for feed selection. The operator chooses which rounds to publish.","source":{"bets":"observed","observed_return":"derived","declared_rtp":null,"gap":null}},{"casino":"BC.Game","game":"Mines","provider":"bc originals","bets":2652,"observed_return":0.9630477291015825,"declared_rtp":null,"gap":null,"std_error":0.10919730454796862,"ci95":[0.749021012187564,1.177074446015601],"max_multiplier":164.71400000000003,"confidence":"moderate","margin":0.2140267169140185,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-09-14","to":"2026-09-21"},"published_loss_share":0.7390648567119156,"feed_bias":"unknown","observed_return_note":"Uncorrected for feed selection. The operator chooses which rounds to publish.","source":{"bets":"observed","observed_return":"derived","declared_rtp":null,"gap":null}},{"casino":"Cloudbet","game":"Goal Mines","provider":"spribe","bets":1087,"observed_return":0.5497832692554041,"declared_rtp":null,"gap":null,"std_error":0.03490138097226512,"ci95":[0.48137656254976446,0.6181899759610437],"max_multiplier":7.26675,"confidence":"moderate","margin":0.06840670670563963,"publishable":false,"withheld":"implausible","diverges_from_declared":null,"window":{"from":"2026-09-14","to":"2026-09-20"},"published_loss_share":0.7736890524379025,"feed_bias":"unknown","observed_return_note":"Uncorrected for feed selection. The operator chooses which rounds to publish.","source":{"bets":"observed","observed_return":"derived","declared_rtp":null,"gap":null}},{"casino":"Stake.com","game":"mines","provider":"stake","bets":997,"observed_return":20.947736423871614,"declared_rtp":null,"gap":null,"std_error":13.051273210850162,"ci95":[-4.632759069394705,46.52823191713793],"max_multiplier":12523.5,"confidence":"low","margin":25.58049549326632,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-09-14","to":"2026-09-14"},"published_loss_share":0.4794383149448345,"feed_bias":"unknown","observed_return_note":"Uncorrected for feed selection. The operator chooses which rounds to publish.","source":{"bets":"observed","observed_return":"derived","declared_rtp":null,"gap":null}},{"casino":"Cloudbet","game":"Turbo Mines","provider":"galaxsys","bets":127,"observed_return":0.2234514435695538,"declared_rtp":null,"gap":null,"std_error":0.1142240514708936,"ci95":[-0.00042769731339764583,0.44733058445250523],"max_multiplier":13.7,"confidence":"low","margin":0.22387914088295144,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-09-14","to":"2026-09-21"},"published_loss_share":0.9291338582677166,"feed_bias":"unknown","observed_return_note":"Uncorrected for feed selection. The operator chooses which rounds to publish.","source":{"bets":"observed","observed_return":"derived","declared_rtp":null,"gap":null}}]}