Medusa Unleashed is a Scientific Games (now Light & Wonder) title in the 'Unleashed' series alongside Zeus Unleashed and Kronos Unleashed, still tracked on real casino floors today. Landing 6 Medusa symbols on reel 1 (or filling the whole reel at the base bet) triggers a Lightning Respin feeding into a network-wide progressive jackpot, with five matching wilds paying 10,000x the bet.
Medusa Unleashed
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Manufacturer: Scientific Games -- credited as the manufacturer on URComped's physical-cabinet locator listing for the machine. Scientific Games Corporation rebranded to Light & Wonder in 2022, and several 2023-2025 player videos/casino mentions now credit the same game to 'Light & Wonder' or 'SG' -- same company/product line, current parent name. This is the 'Unleashed' game series (Zeus Unleashed, Kronos Unleashed, Medusa Unleashed, Athena Unleashed), not to be confused with unrelated 'Medusa' titles from other studios (e.g. NextGen Gaming's 'Medusa'/'Medusa Megaways' or Light & Wonder's separate online-only titles 'Medusa HQ' and 'Medusa High and Mighty').
Release: 2019 -- publicly previewed as a Scientific Games slot at G2E 2019 (the Global Gaming Expo) per a gameplay-preview video/article published October 21, 2019. No official Scientific Games/Light & Wonder press release specifically announcing a Medusa Unleashed launch date was found, so the exact commercial ship date is not independently confirmed beyond this G2E 2019 preview.
Cabinet: unknown -- could not confirm the specific physical cabinet model (e.g. TwinStar J43 vs. Kascada) through a source that actually loaded live content. Sibling 'Unleashed' titles (Zeus Unleashed, Kronos Unleashed) are documented as shipping on Scientific Games' TwinStar J43 43-inch curved-portrait cabinet, and one retailer page title (now returning 404, no longer live) referenced 'Medusa Unleashed TwinStar,' but this could not be independently verified for Medusa Unleashed itself via a working source, so it is not asserted as confirmed. Confirmed instead: it is a video (not mechanical-reel) slot with a 5-reel, 3-row game grid, per casino.harringtonraceway.com's own machine listing.
RTP: unknown -- no RTP figure specific to the physical Medusa Unleashed cabinet was found in any manufacturer, regulatory, or casino source. Web search surfaced RTP percentages (roughly 92-97%) for other, unrelated games also named 'Medusa' from different developers (NextGen Gaming, Yggdrasil, TaDa Gaming) -- these are different products and are not reported here to avoid misattributing them to this cabinet.
Mechanic: standard
Known quirks
Medusa Unleashed is a confirmed, currently-tracked physical land-based cabinet: URComped's slot-machine locator page for the game shows it tagged by community members 38 times, with the most recent sighting logged at MGM Grand Las Vegas.
Know Your Slots' review frames Medusa Unleashed as a case of a slot sequel deliberately raising volatility: rather than costing more to trigger, its Lightning Respin bonus is harder to reach on the base bet (must fill the whole reel) versus the 'More/Better' higher-bet mode, which only requires 6 Medusa symbols to land on reel 1 -- the reviewer notes triggers become less frequent but pay out bigger when they hit.
Harrington Raceway & Casino's own machine-listing page describes Medusa Unleashed as carrying a 'network-wide progressive jackpot that accumulates across all bets,' and states matching five wild symbols pays 10,000x the bet -- confirming this specific cabinet is wired into a wide-area/linked progressive rather than a stand-alone jackpot.
A viewer comment on The Big Payback's Medusa Unleashed recap page reports walking away with over $600 on their 'first slot experience' on the machine, and another commenter notes seeing the cabinet placed on the casino floor next to its predecessor, Zeus Unleashed; other comments place sightings of the machine at Talking Stick Casino (Scottsdale, AZ) and Harrah's New Orleans.
Recognition clues
5-reel, 3-row video slot grid (not a mechanical-reel machine)
Lightning Respin bonus triggers when 6 Medusa symbols land on reel 1 at the higher 'More/Better' bet level, or when the whole reel fills with Medusa symbols at the base bet
Network-wide progressive jackpot meter that grows with every bet placed across the casino network; five matching wild symbols pay 10,000x the bet
Part of Scientific Games' 'Unleashed' series alongside Zeus Unleashed and Kronos Unleashed -- occasionally placed on the casino floor right next to its predecessor, Zeus Unleashed
Photo checklist
Full cabinet shot confirming manufacturer branding (Scientific Games or Light & Wonder) and the 5-reel, 3-row game grid
Close-up of reel 1 during a spin, since the Lightning Respin trigger depends on Medusa symbols landing there specifically
The progressive jackpot meter display, to confirm it's the network-wide/linked type rather than a stand-alone jackpot
Any title glass or top-box signage identifying the 'Unleashed' series, to help distinguish it from unrelated online-only 'Medusa' titles by other studios (Medusa HQ, Medusa High and Mighty, Medusa Megaways)