Rex Stampede: Slot Overview
ELK Studios cranks up the virtual time machine and heads back millions of years to an era when dinosaurs dominated the planet and staying alive was anything but easy. The game is Rex Stampede, and alongside the usual fearsome prehistoric predators, the studio adds a ‘mythical beast of unsurpassed power and fortune’ — a golden T-Rex — which plays a key role in expanding the play area and upgrading lower-value premium symbols into the top-paying one. So, if the idea of being trampled by colossal reptiles or snapped up by cavernous jaws doesn’t scare you off, it’s time to step into ELK Studio’s perilous prehistoric setting.
At the time of writing, the internet was busy arguing whether 100 unarmed humans could beat a single gorilla in a straight fight. If we push the thought experiment toward an even larger, more terrifying opponent, how many people would it take to take down one T-Rex with no weapons? Would it even be possible? Maybe one day, in some far-off future where scientists resurrect dinosaurs Jurassic Park style, a grim society will pit them against humans in twisted gladiatorial contests to settle it for good. Rex Stampede heads the other way on the timeline, dropping players into a distant past where giant lizards ruled and mammals were insignificant — best advised to move fast if they didn’t want to become lunch.

Taking on the stampede means selecting a wager of 20 c to $/€100 per spin. Tucked away like a tiny dino egg is Rex Stampede’s highly volatile math model, delivering an RTP of 94% whether you’re playing standard spins or using the X-iter feature buys. Press play and a 5×4 gaming grid spins, forming wins from the leftmost reel using 1,024 ways to win. The grid can also add two extra positions to reels 2 to 5, boosting the potential to as many as 5,184 ways to win.
Ancient yet bright 10 to A card ranks serve as the low-paying symbols, returning 0.2x to 0.4x for a 5 OAK hit. Much more intimidating are the five premium dinosaur symbols, with T-Rex sitting at the top and paying 1x to 8x the bet for a 5 OAK premium combination. Each payout symbol can appear stacked, showing a number that indicates how many symbols occupy that position. Wild symbols replace all symbols except scatters and Stampede symbols. When a wild helps create a win, it can reveal a multiplier of x2, x3, or x5.
Rex Stampede: Slot Features

Brace for some serious virtual tremors thanks to features like Stampede, free spins with expanding reels, and a selection of X-iter bonus buys.
Stampede
When 2 or more Stampede symbols land in the same row, the Stampede feature activates, impacting every row that contains 2 or more Stampede symbols. The Stampede symbols and the regular pay symbols between them get transformed into T-Rex symbols in the base game and golden T-Rex symbols in the bonus round. Any stacked symbols converted by Stampede become stacked T-Rex symbols in normal mode or golden T-Rexes in bonus mode.
Free Spins
Hitting 3, 4, or 5 scatters grants 6, 12, or 18 free spins, respectively. While the feature is running, landing a Golden T-Rex on the leftmost reel awards +1 free spin. Landing a golden T-Rex on any reel other than the leftmost gives +1 token for that reel. In these cases, Golden T-Rexes then convert into regular T-Rexes. Gathering 3 tokens on the same reel awards +1 free spin, expands the reel from 4 to 6 rows (revealing T-Rex symbols), and all matching high-pay symbols shown above the affected reel change into T-Rex symbols. This upgraded state remains for the rest of the feature. On top of that, whenever a wild is part of a win, it will always reveal a multiplier, and wilds positioned between Stampede symbols count as golden T-Rex symbols. Finally, landing 2, 3, 4, or 5 scatter symbols triggers an additional +3, +6, +12, or +18 free spins, respectively.
X-iter
The X-iter lets players switch on the Bonus Hunt for 3x the bet, purchasing 1 spin with more than triple the chance of triggering the bonus round. The Two or more Wilds mode is priced at 10x, ensuring at least 2 wilds land each spin, or players can lock in a Stampede trigger for 25x. The standard bonus round can be purchased for 100x or the super bonus for 500x, where every spin triggers a Stampede.

Rex Stampede: Slot Verdict
Anyone who’s watched Jurassic Park knows how lethal a single T-Rex can be, so a whole stampede would be far too much for a bunch of frightened, unarmed bipeds to cope with. In Rex Stampede, though, a rampaging herd of T-Rexes is exactly what you want, simply because it’s the game’s highest-paying symbol. In fact, Rex Stampede revolves around getting as many T-Rex symbols onto the grid as possible, and it offers several different ways to make that happen — or at least tease the possibility.
The Stampede feature is one of the main routes, and it’s available at all times in both the base game and the bonus. Stampede symbols can also appear on the leftmost reel, meaning the feature can create instant wins, although where those symbols land is never guaranteed. What’s more, in normal mode, if a stacked symbol is converted into a T-Rex, the new T-Rex keeps the stacked value, which can significantly boost outcomes. Golden T-Rexes become even more important in free spins because they generate tokens that can expand reels and upgrade lower premium symbols into the top T-Rex symbol. It’s no surprise that super free spins — which guarantee a Stampede on every spin — delivered the most thrilling moments during testing.
With a win cap of 25,000x the bet, Rex Stampede has plenty of theoretical space to really let loose. It’s a lively, vividly coloured slot packed with thundering beasts, and its blend of reel expansion and symbol transformation should appeal to dino fans just as much as it will to players who enjoy Pink Elephants/Eye of Horus-style gameplay with a few extra twists.
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ProviderELK Studios
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RTP94%
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VolatilityHigh (8/10)
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Reels5
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Rows4
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Paylines1,024-5,184
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Min/Max Bet0.20/100
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Max Win25,000x
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Hit Freq22.7%
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Release DateJuly 1, 2025