Free demo with play-money credits. No download, no sign-up.
- Maker: IGT
- RTP: 92.01% to 95.06%, depending on the casino's setting
- Lines: 9 paylines
- Volatility: High
Triple Double Diamond is a classic-style slot from IGT. It uses both the Double Diamond and the Triple Diamond logos as wild symbols, two names many players know from casino floors. The demo on this page is IGT’s online version, released in 2026, and it is drawn to look like a real slot machine. You can play it free here, with no download and no sign-up.
There are no free spins and no bonus round. The whole game is three reels, nine paylines and two wild multipliers. A Double Diamond in a win doubles the payout. A Triple Diamond triples it. Two wilds in the same win can multiply it by as much as nine. The other symbols are the familiar ones: cherries, bars and red and blue sevens.
Triple Double Diamond Quick Facts
| Game maker | IGT |
|---|---|
| Released | 2026 online; based on a classic IGT casino machine |
| Reels | 3 reels, 3 rows |
| Paylines / ways to win | 9 paylines |
| RTP (payback) | 92.01% to 95.06%, depending on the casino's setting |
| Volatility | High |
| Top prize | 5,000x for three Triple Diamond symbols on line 9 (one source lists 1,199x the total bet) |
| Bet range | From about 0.09 per spin; the top bet varies by site |
| Casino-floor machine | Yes |
| Free demo | Yes. No download, no sign-up |
How Triple Double Diamond Works
The game has 3 reels and 3 rows, with 9 fixed paylines running across them. A payline is a path across the reels, and three matching symbols on one pay a prize. The paytable fills about half the screen, as it would on the glass of a real machine. The lowest bet is roughly 0.09 to 0.10 credits per spin. The top bet differs by site.
In the paytable, three cherries or three single bars pay 10x. Double bars pay 20x and triple bars 30x. Any mix of red and blue 7s pays 40x, three blue 7s pay 60x and three red 7s pay 80x. Three Triple Diamond logos pay 1,000x on lines 1 to 8 and 5,000x on line 9. That last combination is the top prize in the game.
The RTP, the share of all bets a slot pays back over time, is listed at 92.01% by one source and 95.06% by another, and it can vary with the casino’s setting. Volatility, meaning how often and how big a game pays, is high. Expect many spins with no win, and occasional larger hits when the wild multipliers land in a winning line.
Triple Double Diamond Bonus Features
Double Diamond wild (2x)
The Double Diamond logo replaces any regular symbol to complete a line. Every win that uses one is doubled. It does not substitute for the Triple Diamond symbol.
Triple Diamond wild (3x)
The Triple Diamond logo also replaces any regular symbol, and a win that uses one is tripled. Three of them on a payline pay the largest prizes in the game, with the most on line 9.
Combined multipliers
More than one wild can take part in the same win. Together they can raise the multiplier to as much as 9 times the normal prize.
Good to Know Before You Play
- This is a base-game-only slot. There are no free spins, scatters or bonus rounds to wait for.
- The 5,000x prize needs three Triple Diamond logos on line 9 specifically. The same three logos on any other line pay 1,000x.
- The two wild symbols do not substitute for each other, so a Double Diamond cannot stand in for a Triple Diamond in the top combination.
- RTP figures differ between sources, from 92.01% to 95.06%. The setting is chosen by whoever hosts the game.
Play Triple Double Diamond for Real Money
The demo on this page uses play money, so nothing you win or lose is real. If you want to play slots for real money, the Play for Real button takes you to an online casino we have reviewed. Game line-ups differ from casino to casino, so look for Triple Double Diamond or a similar IGT game in its lobby.
You can also compare our best real money casinos, or the sweepstakes casinos that are legal in most states.
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Triple Double Diamond FAQ
Can I play Triple Double Diamond for free?
Yes. The demo on this page runs on play-money credits. There is nothing to download and no sign-up. The credits have no cash value and cannot be cashed out, so you can try the game and its features without spending anything.
What is the RTP of Triple Double Diamond?
Sources list it at 92.01% and at 95.06%, and note that it varies with the setting in use. RTP is the share of all bets a slot pays back over a very long run of spins, not a figure for one session.
How do you trigger the bonus in Triple Double Diamond?
There is no bonus round and there are no free spins. The only feature is the pair of wild symbols. A Double Diamond doubles any win it completes, a Triple Diamond triples it, and together they can multiply a win by up to 9.
What is the top prize in Triple Double Diamond?
The top prize is paid for three Triple Diamond logos on payline 9, listed at 5,000x in the paytable. Three Triple Diamonds on any of the other eight lines pay 1,000x. Three red 7s, the best regular combination, pay 80x.
Last updated: October 2026 · Reviewed by the SweepWiz Editorial Team · Editorial policy
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