Gem Trio

Play Gem Trio online slot for real money online at 666 Casino

*Any values mentioned are subject to change.


Game Rules

  • All symbols pay from left to right on adjacent reels starting from the leftmost reel.
  • Only the highest win is paid per line.
  • Wins on multiple paylines are added to the total win.
  • Free Spins wins are added to the payline win.
  • All values are expressed as actual wins in coins.
  • Malfunction voids all pays and plays.

Volatility and RTP

  • The game has a high volatility.
  • The RTP is shown in-game.

Bet Limits

  • Minimum bet: £0.10
  • Maximum bet: £2.00

Symbols and Payouts

The paytable adjusts according to the current bet configuration.

Symbol CombinationPayout
7773 – £14.00
773 – £8.00
73 – £5.00
Any combination 777/77/73 – £2.00
BAR BAR BAR3 – £2.00
BAR3 – £1.00
Any BAR/BAR BAR/BAR3 – £0.60
3X Wild3 – £500.00
Red Wild3 – £250.00
Green Wild3 – £100.00
Any Wild Combination3 – £30.00

Wild Symbols

  • Wild symbols substitute for all symbols except for Gem symbols.
  • They can appear on all reels during the base game and Free Spins feature.
  • The 3X Wild multiplies the win of all winning combinations it is part of by 3x, except in combinations of only wilds.

Gem Symbols and Modifiers

  • Three types of Gem symbols can appear: Emerald, Diamond, and Ruby.
  • When Gem symbols hit, they are collected by the corresponding gem collector.
  • Collecting Gem symbols can trigger the Free Spins feature with one or more modifiers.
  • Modifiers are triggered randomly when the feature is activated.

Free Spins Feature

  • The Free Spins round starts with 10 free spins and one or more modifiers.
  • Modifiers are related to the type(s) of Gem collected before triggering the round.

Modifier Descriptions

  • Emerald Modifier: Each Emerald Gem that hits during the round awards +1 or +2 additional free spins randomly.
  • Diamond Modifier: Four special bonus prizes (MINI 20x, MINOR 50x, MAJOR 300x, GRAND 10,000x total bet) can be won. Each Diamond Gem collected shows a prize name; when four of the same prize name are collected, the prize is awarded.
  • Ruby Modifier: The Free Spins feature is played on two 3×3 grids, each starting with 10 free spins. Additional free spins are awarded for each Gem hit when the Emerald modifier is also active. Extra free spins are awarded per grid for each Gem collected with the Ruby modifier.
  • Special reels are in play during the feature.

Maximum Potential Win

  • The maximum potential win amount per feature is capped at 20,000x the bet.
  • If total feature winnings reach 20,000x the bet, the round ends immediately, and all remaining free spins are forfeited.

How to Play

  1. Click the “+” or “−” buttons to change the bet value and open the bet menu.
  2. Select the bet to use in the game.
  3. Press the Spin button to play.

Main Game Interface

  • The settings menu contains gameplay and audio settings.
  • The sound button toggles sound and music.
  • The information button opens the information page.
  • Credit and Bet labels show current balance and total bet.
  • Bet can be changed with the “+” and “−” buttons.
  • The spin symbol starts the game.

Settings Menu

  • Intro Screen: Toggle introductory screen on or off.
  • Ambient: Toggle ambient sound and music on or off.
  • Sound FX: Toggle sound effects on or off.
  • Game History: Opens game history page.
  • Information Screen: Scroll between information pages or close information screen.
  • Bet Menu: Change bet multiplier and total bet using “+” and “−” buttons.
  • The maximum potential win amount is capped at 20,000x the bet. Exceeding this cap ends the round and forfeits remaining features.

Gem Trio Demo Play

If you’re curious about Gem Trio demo play or exploring this slot for the first time, you’ve come to the right place. Although we don’t offer access to demo play, this page highlights everything you need to know, based on the official help and feature information.

Discover how the main elements of the game work, including bonus symbols and payout structures, just as you would in a standard demo mode.

Whether you’re reviewing the gameplay mechanics before wagering real money or simply comparing Gem Trio with other online slots, the detailed breakdown here offers a close simulation of how it feels to play for free.

*All values (Bet Levels, Maximum Wins etc.) mentioned in relation to this slot game are subject to change at any time. Game features mentioned may not be available in some jurisdictions.