Help File

3 Wonders - Underworld Kingdom

Welcome to Underworld Kingdom Video Slot. It has 5 reels, 4 rows, and following features:

The average theoretical return to player (RTP) is: 95.53%

RULES

WILD

KINGDOM WILD NUDGE

COINS

MAP

HOLD & RESPIN FEATURE

PURPLE COIN

BLUE COIN

RED COIN

GAME RULES

HOW TO PLAY

Pick your bet amount and push spin button.

Spin Button

  • Places a bet then spins the reels.

Bet Buttons

  • Adjusts the BET staked.
  • (+) button raises your BET, (-) button lowers your BET.

Menu Button

  • Open Game settings configuration window, where the player can adjust the following:

Sound Buttons

  • Turn sounds On or Off respectively.

Info Button

  • Display info pages.

Autoplay Button (Optional, only applicable in some jurisdictions)

  • Opens Autoplay configuration window, where the player can select the desired number of autoplay and start autoplay.

Bet Settings Button

  • Opens Bet configuration window, where player can select the desired bet amount.

Return to Game Button

  • Go back to base game.

Stop Autoplay Button (Optional, only applicable in some jurisdictions)

  • Stops autoplay. Number of autoplays remaining will be shown over the button.

Balance Meter

  • Display the player's current balance.

Total Bet Meter

  • Display the total wager staked.

Win Meter

  • Display the current win amount.

Fast Forward Button

  • Fast Forward speeds up in-game animations.
  • Fast Forward can be turned on or off at any time.
  • Activating Fast Forward does not influence the result of spins.
  • If supported in your jurisdiction, Fast Forward speeds up each spin.

Keyboard Shortcuts

This is game rules version 3, dated June 27, 2025.