Tetris Extreme (Red7/SG Digital): Overview

In mother Russia there’s a song—an old folk tune from the nineteenth century—about a peddler and a girl bargaining over wares. Under the surface of that everyday exchange sit richer metaphors of courtship. Russians know it as Korobeiniki; everywhere else it’s simply “the Tetris Song”. It’s featured in multiple versions of the game, notably the N-Blox edition, and here it takes centre stage in Tetris Extreme from SG Digital partners Red7. Since its 1984 release, Tetris has been purchased or downloaded more than 170 million times. That makes it the most popular game ever, and it’s surprising it took so long to arrive as a slot. Turning the biggest video game of all time into a slot is a brave call—can Red7 pull it off? Let’s take a look.

The first point in its favour comes the moment it loads and that legendary soundtrack starts up. Some fans are so devoted to the melody that you can even find a 10-hour version on YouTube, if you’re into that sort of thing. And that’s before you get into the techno takes, dubstep edits, hard house, happy hard house, and happy hardcore remixes, among plenty of others. Clearly, the tune hit a nerve. As for staking, bets run from 20 p/c up to $/€100 a pop. Press spin and, at least at first, things can feel a bit complex.

Here’s how it works: blocks drop down to fill the entire grid. Unlike standard Tetris, that doesn’t automatically mean the end. Any full lines are cleared away to make room for more blocks, and each cleared line adds 1 to the meter beside the grid. As that meter climbs, a multiplier increases too, topping out at x50. Once a spin finishes—when no further lines can be completed—if there is a cluster of 9 or more same coloured individual squares, you score a win. The payout is then boosted by the multiplier shown on the left and the final total is awarded. If that sounds a bit messy, it can be at first—but try the demo and after a handful of spins it becomes straightforward.

All block colours pay the same, and a group of 25 or more returns 8 times the stake by itself before any multiplier is applied. The multiplier can hit x50 in the base game and go much higher in the bonus, so there’s room for solid payouts. You’ll generally come across two versions of Tetris Extreme: one connected to a progressive jackpot called Mega Drop, and another that runs as a standalone slot. The Mega Drop edition is clearly the better option for two reasons. First, the jackpots of course, and second, the RTP is stronger at 96.09%, versus a much less appealing 94.09% on the non-Mega Drop version.

Tetris Extreme (Red7/SG Digital): Features

Clear 15 or more lines in a single spin and the game awards 10 Free Spins. Free spins follow the same rules as the base game, but add one extra element—the Gold Tetromino. This golden block can drop at any point during a free spin. If it helps complete a line clear, then the line clear multiplier is multiplied by x5. In our test sessions we pushed multipliers beyond 100x on several occasions, so there’s definitely scope for some huge moments. That said, because the multiplier resets after every losing spin, it doesn’t often seem to translate into much.

As noted, Tetris Extreme may also be tied to a progressive jackpot called the Mega Drop. Two percent of every bet is diverted and feed into three jackpots – the Minor, Major, and Epic. Each jackpot can drop at random on any spin, and each one has a deadline shown on the main game screen.

Tetris Extreme (Red7/SG Digital): Verdict

Tetris Extreme is a difficult one to judge because expectations are naturally sky-high. Tetris is massive, and it calls for something that really does it justice. At first, Tetris Extreme can come across as a bit underwhelming, but stick with it and it may start to win you over. Visually, it’s not revolutionary, but then neither was the original. Tetris never relied on flashy graphics; it was about addictive playability and the simple satisfaction of locking pieces into place. Add wagering to that kind of gameplay and it should be a guaranteed hit, right? In some ways it is—and in others it isn’t. Tetris Extreme takes a little time to click, but once it does, it can be genuinely fun.

The pacing can feel sluggish early on, because consecutive line clears take time to play out. Most slots don’t move at this tempo, so it may initially feel like it’s dragging. Again, give it a chance and the unusual system may grow on you. The upside is the big multipliers you can build during a strong sequence of line clears. In terms of potential, clearing 25+ blocks alongside a full multiplier of x100 would pay 2,500 times the stake. That’s not spectacular, but it’s far from terrible. It’s also worth noting that across several hours of testing we didn’t land a single really strong bonus (nothing above 100x). That’s not unusual for volatile slots, but the frequent small returns became dull quickly.

Now that the seal has been broken, it wouldn’t be surprising to see Tetris appear again in slot form. It’s simply too good an opportunity to ignore, and other studios will surely believe they can do more with it. Tetris Extreme ends up being an ok slot, yet there’s still a nagging sense that it could have delivered a lot more.