Gritty Kitty adds a whole extra Feature Reel above the grid — a second board that feeds the first.
Gritty Kitty of Nitropolis runs a charged Feature Reel above the main grid, feeding features and coins down. Play the free demo below, then check the 94% RTP and 25,000x max win.
18+. New players only. T&Cs apply. BeGambleAware.org.
Gritty Kitty of Nitropolis has a trick no other game in the series uses: a Feature Reel sitting above the main grid. It's a second 6x3 board that drops feature symbols and coins down into play. That layered setup is the thing to grasp first.
This is the cat clan's spin-off, set in a neon dystopian Tokyotown. ELK released it in June 2025, making it the newest game in the whole Nitropolis universe. Up to 262,144 ways to win sit under the hood, so it leans back toward the big-number side of the series.
The main grid is 6 reels, 4 rows, expanding to 8 on wins via the Avalanche. Standard Nitropolis so far. What changes everything is that Feature Reel up top. As symbols clear below, the feature symbols above slide down and activate when they land on the main grid. It's a constant feed of effects.
The signature round is Assassin Spins. Fill the entire Feature Reel with the Assassin symbol and you trigger it, a coin-collect mode played with coins, Nitro Reels and blockers only. Land coins to reset your spins, and the collected total pays out at the end. That's where the cat earns its keep.
The spin-off that follows the cat clan into neon Tokyotown. Here's the crew in the shadows — and the wolf trying to drag them into the light.
Sphynx cats trained in the back alleys of Tokyotown, the Gritty Kitty clan strike silent and vanish. The rising-sun bandana marks the crew. Their own game leans into that: the Assassin Spins round is all patience and precision, exactly how the cats operate.
The one gang the Sergeant can never quite catch. Sgt Nitro Wolf's Pest Control patrols sweep Tokyotown nightly, but the cats are gone before the searchlights land. It drives him up the wall, which the Kitty clan rather enjoys.
Skip the lore for a second. These are the mechanics that move money in Gritty Kitty of Nitropolis, in the order they matter.
A 6x3 board above the main grid holding feature symbols, coins and blanks. As the grid clears, symbols drop from it into play and activate. It's a second engine feeding the first, unique to this game.
Fill the whole Feature Reel with the Assassin symbol to trigger it. You get 3 coin-collect spins with coins, Nitro Reels and blockers only. Landing coins resets the counter to 3, and the total pays at the end.
The usual Nitro Reels appear, holding stacks of symbols. Nitro Upgrade, Match and Wild features fire from the Feature Reel to modify them. TNT symbols clear reels to shake up the board.
A coin symbol covering the full 6x3 Feature Reel pays an instant coin win. A MAX WIN symbol covering it awards the remaining amount to the cap directly. Big Feature Reel fills are what you want.
From a 3x Bonus Hunt up to the 500x Super Assassin Spins with max rows. Nitrofest and Big Blocks sit in between. RTP is 94% across every mode.
Real reels, play money. The best way to feel the volatility before a single penny is at stake.
The 25,000x cap is the spin-off standard, but the Feature Reel makes Gritty Kitty feel richer than that number suggests. With up to 262,144 ways plus the extra board feeding in, there's a lot of win potential moving at once. It's the most feature-dense spin-off.
RTP sits at 94%, fixed, no higher version, same as every recent ELK release. That's the trade. But being the newest game, it's also the most polished, and the Assassin Spins coin round gives it a proper centrepiece to chase.
Who's it for? Players who like a lot of mechanics interacting and don't mind complexity, plus anyone who enjoys coin-collect finales. The Feature Reel takes a round or two to click. Demo it, fill that reel with Assassins once, and you'll get the appeal.
Ratings and notes from people who've spun Gritty Kitty of Nitropolis for real, not just watched a clip.
Filling the Feature Reel with Assassins for the first time was a moment. The coin round is so satisfying. Tokyotown looks incredible too, easily the best-looking one in the series for me.
The extra reel up top is clever, always something dropping in. Bit much to follow at first, took a few demo goes. Newest game and it shows, feels really slick. Shame about the 94% RTP though.
Love the cat gang and the Tokyotown vibe. Assassin Spins are the highlight, chasing coins with the counter resetting is proper tense. High volatility so be sensible with it.
Most going on of any spin-off and I'm here for it. The Feature Reel feeding the grid keeps every spin busy. Demo'd it loads before playing, worth doing, there's a lot to learn but it's worth it.
Gritty Kitty is the most feature-dense spin-off, so give the demo a proper go before staking. The extra Feature Reel above the main grid means there's constantly something dropping into play, and it takes a round or two to see how the two boards feed each other. Once it clicks, it's one of the most engaging games in the range.
The main thing to track is what's sitting in that Feature Reel. Coins, feature symbols and Assassin symbols all slide down as the grid clears below. A coin symbol filling the whole 6x3 reel pays an instant win, and a MAX WIN symbol filling it awards the cap directly. Big Feature Reel fills are what you're hoping for.
The centrepiece is Assassin Spins, triggered when the Assassin symbol covers the entire Feature Reel. It's a coin-collect round where landing coins resets your spins to three, so a hot run keeps rolling. The collected total pays at the end. Most of your best sessions on this game will come from a strong Assassin Spins round.
As with every recent ELK game, the RTP is a fixed 94% with no higher version. Keep stakes low and let the features build rather than forcing buys. X-iter runs from a 3x Bonus Hunt up to the 500x Super Assassin Spins with max rows. Being the newest game it's beautifully polished, but the maths is the same trade as the rest.
Seven more games share the same Nitro Reel DNA — each one plays differently. Pick the next one to explore.
The RTP is 94%, fixed for the base game and all X-iter buys. There's no higher version, so it's below the 96% many players prefer. Bear it in mind for longer sessions.
25,000x your stake, in line with the other clan spin-offs. It's under the 50,000x on the recent numbered games. A MAX WIN symbol filling the Feature Reel awards it directly.
A 6x3 board above the main grid holding feature symbols, coins and blanks. As the main grid clears on wins, symbols drop from the Feature Reel into play and activate. No other Nitropolis game has this second board.
The signature bonus. Fill the entire Feature Reel with the Assassin symbol to trigger 3 coin-collect spins played with coins, Nitro Reels and blockers only. Landing coins resets your spins to 3, and the collected total pays out at the end.
Yes, via X-iter. Options run from a 3x Bonus Hunt up to the 500x Super Assassin Spins with max rows, plus Nitrofest and Big Blocks. Every mode runs at 94% RTP.
Yes. The demo on this page is the real ELK build on play money, no account and no download. Given the layered Feature Reel, the demo is the best way to learn how it feeds the grid before staking.
18+. Please gamble responsibly.
