Game Modes

Introduction

A game mode defines a purchasable game behavior, similar to "bet modes" in the Stake Math SDK. Game modes can vary in cost, outcomes, symbols, and mechanics.

Common game mode patterns include:

• Base game - The standard gameplay at 1x bet multiplier
• Ante Bet - Increased odds of hitting free spins for extra cost
• Bonus game - e.g. 100x bet for instant free spins
• Super bonus - e.g. 500x bet for instant super free spins

Players can bet on the base game or purchase bonus features directly. A "base" mode can still include free spins triggered naturally, while a dedicated "bonus" mode allows immediate access for an extra cost.

Defining Game Modes

Game modes usually require a lot of configuration. They define which symbols make up your reel strips and which simulation results to output. Here is a relatively simple example with one game mode:

import { defineGameModes, GameMode } from "@slot-engine/core"

export const gameModes = defineGameModes({
  base: new GameMode({
    name: "base",
    cost: 1,
    rtp: 0.96,
    reelsAmount: 5,
    symbolsPerReel: [3, 3, 3, 3, 3],
    isBonusBuy: false,
    reelSets: [
      /* list of reel sets */
    ],
    resultSets: [
      /* list of result sets */
    ],
  }),
})

GameMode Constructor Options

All options are required.