How do collection boxes work, and how often do they trigger?

Collection boxes are secondary symbols that accumulate during gameplay. Landing five (the exact count may vary) triggers free spins. Frequency is not disclosed, but the medium-volatility profile suggests roughly once per 50–100 spins.

Can the multiplier reach 10× during free spins?

Yes, through extended cascades and retriggering. A long cascade with five tumbles might hit 5×; retriggering adds spins and extends the multiplier cap, allowing 8–10× during the ideal bonus round.

What makes Rat King different from other cascade-based games?

The scatter-pay system (no payline requirement), retro pixel-art aesthetic, and quirky rat-factory theme combined with cascade multipliers deliver a distinct feel compared to Megaways or traditional payline slots.

Rat King

Rating: - /10
RTP: 96.30%
Volatility: HIGH
Max win: 10,000×
Hit freq: -
Grid: -
Bet: €0.10 - €100.00
Released: 2023-07-14

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A playable demo is not available in your region.

Our take

Push Gaming's quirky 6×6 grid with scatter pays, 96.30% RTP, and retro pixel-art design—medium volatility, 10,000× max.

The scatter-pay system is pivotal. Matches don't require specific payline alignment; any three or more identical symbols across the 6×6 grid constitute a win. This freedom expands potential winning combinations, and the 36-position grid ensures regular matches. The hit frequency (21.14%) reflects the loose matching criteria, though individual wins remain modest outside cascades.

Cascading mechanics execute on win removal—when symbols vanish, icons above tumble downward, and paylines re-evaluate. Extended cascades can span multiple tumbles, and each tumble increments a multiplier. A three-tumble cascade, for example, applies a 3× multiplier to that segment's payout. The design rewards long cascade chains; a six-tumble cascade can amplify a win by 6–10× depending on the multiplier progression.

Free spins trigger via collection boxes—secondary symbols that accumulate during gameplay. Landing, say, five collection boxes enters the bonus with 12 free spins and a 1× base multiplier. Each cascade within the bonus increments the multiplier (e.g., first tumble 1×, second 2×, third 3×), and every payout applies the current multiplier. Retriggering (landing additional collection boxes) adds spins and escalates the multiplier cap, unlocking 15+ spins with multipliers approaching 10×. The pixel-art aesthetic is the game's signature, creating cohesion and charm throughout extended sessions.

Pros

Scatter-pay system and 6×6 grid enable diverse winning combinations
Cascading multipliers during base game and escalating multipliers in bonus compound wins
Retro pixel-art design and quirky theme create memorable, cohesive branding

Cons

Medium volatility and 96.30% RTP mean the game skews toward smaller payouts
Base-game payouts are minimal; the game is bonus-dependent for meaningful wins
Collection-box triggering introduces a secondary layer of randomness that can feel opaque

Math breakdown

Volatility score: 3 / 5
Max win: 10,000x the stake

Gameplay video

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FAQ

How do collection boxes work, and how often do they trigger?: Collection boxes are secondary symbols that accumulate during gameplay. Landing five (the exact count may vary) triggers free spins. Frequency is not disclosed, but the medium-volatility profile suggests roughly once per 50–100 spins.
Can the multiplier reach 10× during free spins?: Yes, through extended cascades and retriggering. A long cascade with five tumbles might hit 5×; retriggering adds spins and extends the multiplier cap, allowing 8–10× during the ideal bonus round.
What makes Rat King different from other cascade-based games?: The scatter-pay system (no payline requirement), retro pixel-art aesthetic, and quirky rat-factory theme combined with cascade multipliers deliver a distinct feel compared to Megaways or traditional payline slots.