Slot guide

White Rabbit Megaways slot review: caterpillar wilds and Extending Reels

Big Time Gaming's 2017 Megaways slot with multiplier wilds and a free spins round where the reels grow to 248,832 ways.

By Eleanor Hartley, editor · Checked on 1 November 2026

The White Rabbit Megaways slot is Big Time Gaming's 2017 take on the Alice in Wonderland story: five reels, 16,807 ways in the base game and a free spins round in which the reels extend to as many as 248,832 ways. Big Time Gaming states an RTP of 96.42%, and the top win quoted on the spec card is 17,420x the stake. The pay-to-trigger Feature Drop that some versions carry is not available to UK players.

White Rabbit Megaways: spec sheet

From the provider's published game sheet.

Provider

Big Time Gaming

RTP

96.42%

Max win

17,420x stake

Reels

5

Ways

16,807 base game, up to 248,832 in free spins

Released

25 October 2017

Features

• Caterpillar wilds with multipliers up to 3x
• Free spins with Extending Reels: cake symbols add rows, up to 248,832 ways
• Up to 60 extra free spins
• Feature Drop (pay to trigger the feature) - Bonus buy is not available to UK players

RTP can be set lower by some casinos; the game's own help screen shows the figure that applies. 18+ only.

Megaways reels and the caterpillar wilds

Every spin reshapes the reels, so the number of ways to win changes from one spin to the next, up to 16,807 outside the bonus. The caterpillar wilds substitute for paying symbols and carry multipliers of up to 3x, which is where most of the base game's larger wins come from. If the Megaways format is new to you, the Megaways slots page explains how variable reels work.

Extending Reels in the White Rabbit free spins

The free spins round is the reason the game is still played. According to Big Time Gaming, cake symbols in the feature add two extra symbol positions to the reels, and as the reels grow the ways climb towards the 248,832 maximum. Up to 60 extra free spins can be added during the round. The feature therefore tends to start small and build, and a short round can end before the reels have grown much.

Why the White Rabbit RTP figure depends on the build

Big Time Gaming's own page gives 96.42%. Several databases list 97.24% instead, a figure tied to builds that include Feature Drop, the option to pay for direct entry to the bonus. Because Feature Drop is not offered to UK players, the 97.24% figure should not be expected at a GB-licensed casino. The help screen inside the game states the return of the version you are playing; the RTP guide explains what that percentage means over the long run.

Volatility and max win: where sources disagree

The spec card leaves volatility blank on purpose: databases rate the game anywhere from medium to high. The 17,420x top win comes from two databases, while another quotes a lower ceiling, so treat the maximum as a rare outcome rather than a target. Whatever the volatility label, the stake limit applies: online slots at GB-licensed casinos are capped at £5 per spin, or £2 if you are 18 to 24.

White Rabbit Megaways free play and lobbies

This site does not host playable demos. Big Time Gaming presents its games on its own website, and licensed casinos may show a demo mode once you have passed age verification, which GB rules require before any play, free or paid. None of the operators on this site names Big Time Gaming in the provider facts available here, so search the casino's lobby for the title or the studio before you deposit. The Big Time Gaming page covers the studio behind the Megaways mechanic.

18+ only. Set a deposit limit before you play and see the responsible gambling page for tools and free support.