Maxxi Labs has released Rats vs Ravens Coin Grid, a slot developed by its Slotty Studio, as a permanent exclusive for crypto casino and sportsbook Stake.

The game launched on 14 October 2026. Unlike a standard early-release arrangement, the exclusivity covers the title’s entire lifetime. It is a very high-volatility game with a maximum win of 13,283x the stake, set on neon-lit city streets where a rat and a raven compete for coins.

It is the first Maxxi Labs game to carry a lifetime exclusive with Stake. An earlier title, Mad Ducks, launched on the operator under a time-limited early-release deal.

How the game plays

  • Coin Grid: Cash and Jackpot coins are copied to a grid above the reels and stay there; a full horizontal, vertical or diagonal line collects them, and the grid does not reset between spins
  • Hold&Win: starts with three respins and unlocks extra rows as it progresses, with Collector and Doubler symbols able to raise coin values
  • Power Mode: can trigger in the base game, adding coins and making Hold&Win easier to reach
  • Super Stack and Free Spins: stacked symbols across the reels, with three or more Scatters awarding 10 free spins featuring stacked Wild or Coin symbols

What the company said

A Maxxi Labs spokesperson said the game showed “what can happen when Maxxi Labs studios are free to follow their own creative instincts”, adding that Slotty had paired an urban setting with Coin Grid mechanics to give it a distinct character.

The spokesperson contrasted it with Mad Ducks: “Rats vs Ravens heads somewhere grittier, into neon-lit streets and an after-dark world.”

About Maxxi Labs

Maxxi Labs operates six independent studios under a single brand. The studios share back-office tools and distribution while keeping separate creative identities, and target mainstream, streamer-led and crypto-native audiences.

Permanent exclusives remain rare in the slot market, where suppliers typically grant a short head start before a game is distributed widely.