Slots on Millon, read through the bonus terms
Slots are the part of a casino lobby that bonus terms are written around. In most offers they are the games that count in full towards wagering, the games free spins are tied to, and the games where the maximum-bet rule bites hardest. This page explains how slots differ from one another in ways that matter for a bonus, using the slots covered on this site as examples.
Paylines, ways, clusters and scatter pays
The way a slot decides what counts as a win shapes how often it pays. Classic designs use fixed paylines. Ways engines pay any matching symbols on adjacent reels from the left: Dead, Dead or Deader runs 243 ways and Wild Bandito runs 1,024. Cluster games such as Merge Up pay for groups of touching symbols, and scatter-pays grids such as Duck Hunters: Happy Hour pay for a count of symbols anywhere on the screen.
Many modern slots add cascades: winning symbols are removed and replaced, so one spin can produce several wins. Some, like Fire in the Hole 3, also expand the grid, which raises the number of ways as rows open up.
RTP and volatility, in bonus terms
RTP is the long-run share of stakes a game returns. Volatility describes how that return is distributed: frequent small wins or rare large ones. For a rollover, the two do different jobs. RTP decides the expected cost of wagering a given amount; volatility decides how likely your balance is to survive long enough to wager it.
| Volatility | Typical balance path | Effect on wagering |
|---|---|---|
| Medium | Gradual drift with regular small wins | More spins funded, steadier progress |
| Very high | Larger swings, longer quiet runs | Requirement often unfinished |
| Extreme | Long dry stretches, rare big features | Balance often ends early, sometimes very high |
An illustrative example, not a Millon term: wagering 3,000 at an RTP of 96% has an expected cost of about 120. That figure is an average. On an extreme slot, most attempts end below it or at zero, and a few end far above it.
Rules that apply to slots specifically
- Excluded titles. Even when slots count in full, the terms may name specific titles that count less or not at all, often those with high RTP or very large ceilings.
- Maximum bet. A stake limit per spin applies while a bonus is active. It is the rule most often broken by accident on slots.
- Bonus buy. Paying to enter a feature is frequently forbidden with bonus funds or counts as zero.
- Free spins. Free spins are tied to named slots and a fixed stake; their winnings can carry a separate requirement.
Each of these is explained in more depth on the bonus terms page and the free spins guide.
Demo mode and its limits
Many slots can be tried in demo mode with play credits. It is the cheapest way to learn how a game feels, how often features trigger and how deep the quiet runs can go. Demo play never counts towards wagering, and its results say nothing about the next real-money session. For the full list of titles with their own guides, return to the games hub.