Jurassic Kingdom

Winning symbols are removed and new symbols drop into the gaps, so a single spin can pay several times before it ends.

What it means for you: Raises the ceiling of any one spin and lengthens it. Sessions feel streakier than the hit frequency alone suggests.

The provider's own sheet labels the reel type 'Collapsing Reels'; the Wilds-on-the-Way upgrade chain is explicitly keyed to 'every new round after the new symbols have cascaded down'.

A triggered round of spins that costs nothing and usually changes the maths.

What it means for you: Where most of the return lives in modern slots. How long it takes to reach is the feature frequency.

4 or more Scatter symbols anywhere trigger the Free Spins Feature: 8 free spins as a base, plus 2 more for each extra Scatter beyond 4. During the feature, the running multiplier keeps increasing by 1 every free spin, and each +1 Free Spin symbol on the reels awards 1 extra free spin. Stated in section 2.5 of the official game information sheet.

The free-spins round can be bought outright for a fixed multiple of the base bet, skipping the wait.

What it means for you: Compresses a long session into one purchase, and usually at a different RTP from the base game.

A Feature Buy menu lets the player buy the Free Spins Feature directly at a price shown in the client: 'Tap on Start button to buy the Free Spins Feature at the price displayed in the Feature Buy menu.' The official game information sheet confirms the button and menu exist but publishes no price or separate feature-buy RTP figure in text, so no feature_buy_rtp is stored on the rtp_configs row above.

After the reels stop, one symbol type is converted into another across the grid: low-pay to high-pay, or everything to a single symbol.

What it means for you: Produces a large win from a spin that looked dead, which is why it is used in markets where session length is short.

'Wilds-on-the-Way': on reels 2, 3, 4 and 5, symbols occupying 2 to 4 spaces may carry a silver frame; a silver-framed symbol involved in a win is redrawn the next round as a random non-Wild, non-Scatter symbol with a gold frame; a gold-framed symbol involved in a win the round after that transforms into Wild symbols. Stated in section 2.3 of the sheet, which also names this feature first in its own opening line about the game.

Substitutes for other paying symbols to complete a win, usually excluding scatters and bonus symbols. This is the baseline symbol behaviour, present on the overwhelming majority of titles, and its exclusions are what actually differ between games.

What it means for you: Raises hit frequency. On its own it does not move volatility.

The Wild symbol substitutes for all symbols except Scatter, and appears only on reels 2, 3, 4 and 5, per section 3.1 of the official game information sheet.

A fixed multiplier factor applies to wins, usually inside a feature, stated as a single value or a capped range rather than a progression.

What it means for you: Scales the whole feature's payouts. The biggest wins on the game are usually a multiplier event rather than a paytable one.

All wins are multiplied by a running multiplier shown below the reels, starting at x1 and increasing by 1 with every winning round, up to the maximum shown on the multiplier meter. Stated in section 2.4 of the sheet; the summary calls the two features together 'Wilds-on-the-Way and increasing multiplier'.