Aftermath Slot Review – Demo, RTP & Features

The end of civilisation is rarely an inviting setting, but NetEnt manages to make it surprisingly entertaining in Aftermath, a post-apocalyptic online slot where humanity is fighting to survive a world devastated by artificial intelligence.

With ruined cities, makeshift settlements and a rebellious group of survivors, the game presents a dystopian future in which technology has turned against its creators.

Rather than relying on the usual wasteland imagery alone, Aftermath builds a surprisingly detailed world around its 4-reel, 6-row starting grid.

Destroyed vehicles, abandoned buildings and improvised shelters create the backdrop, while cinematic animations, character-driven symbols and an atmospheric soundtrack give the experience a distinctive personality.

Behind the storytelling sits an ambitious collection of mechanics. Scatter Pays, Avalanches, progressive multipliers, expanding reels and four special symbol features work together to create unpredictable sequences of wins.

The action becomes considerably more intense during Bonus Spins and Super Bonus Spins, where accumulated multipliers and additional reel positions can remain active throughout the round.

Aftermath is a highly volatile slot with a maximum payout of 25,000x the stake and a standard RTP of 96.05%, although lower RTP configurations are also available. Players can select bets between €0.20 and €40, while the optional Elevate menu provides several ways to access enhanced gameplay and bonus rounds.

Game Features

Aftermath slot game combines scatter-based payouts with a series of interconnected features that can transform both the playing area and the value of consecutive wins. Its mechanics are designed to build momentum, particularly when expanding reels, symbol transformations and increasing multipliers activate during the same sequence.

Scatter Pays and Avalanches

Unlike traditional slots that require matching symbols along paylines, Aftermath uses a Scatter Pays system. Wins are awarded when at least eight identical paying symbols appear anywhere on the grid, regardless of their positions.

The game begins with 4 reels and 6 rows, although certain features can expand the playing area to a maximum of 6 reels and 8 rows.

Every winning combination activates the Avalanche mechanic. Winning symbols disappear, existing symbols move into the empty spaces and new symbols enter the grid. If another qualifying combination forms, the process repeats. This allows several wins to occur within a single paid spin without requiring an additional wager.

Progressive Win Multiplier

Every successful Avalanche increases the current win multiplier by +1, with the increased value applying to subsequent wins in the sequence.

The multiplier begins again on each new base game spin, meaning longer Avalanche chains are necessary to build substantial values during regular gameplay.

The situation changes during the bonus rounds, where the multiplier remains active between spins. This persistence creates opportunities for significantly larger payouts as the feature progresses.

Wild Symbols

Aftermath slot includes regular Wilds and special multiplier Wilds, both of which substitute for ordinary paying symbols.

Regular Wilds can appear during the base game, helping complete scatter combinations and potentially extending Avalanche sequences.

Special Wilds become available during the bonus rounds and contribute directly to the progressive multiplier whenever they participate in a winning combination.

During regular Bonus Spins, these special Wilds carry a +2 multiplier value. In Super Bonus Spins, their values range from +3 to +10, making them especially important when several consecutive wins occur.

Expanding Reels

The original 4×6 playing area can grow when certain special features remove locked positions around the grid.

The maximum possible configuration is 6 reels and 8 rows, providing considerably more room for matching symbols to appear. During the base game, any additional positions are removed when the spin finishes. However, reel expansions achieved during Bonus Spins or Super Bonus Spins remain unlocked until the bonus round ends.

This creates an additional layer of progression, as a bonus round can gradually develop into a larger playing field while its multiplier continues to increase.

Special Feature Symbols

Four special symbols can appear throughout Aftermath: Bomb, Upgrade, Change and Purge. These features activate once the current Avalanche sequence has finished. When several special symbols are present, they are resolved in a predetermined order.

Bomb

The Bomb removes itself and ordinary symbols occupying the eight surrounding positions. It can also destroy locked positions, potentially expanding the playing area.

Its most valuable effect is doubling the current win multiplier. When activated after several successful Avalanches, this can considerably increase the potential of subsequent wins.

Upgrade

The Upgrade Symbol transforms itself and a random number of low-paying symbols into either the highest-paying or second-highest-paying symbol currently available on the reels.

By improving the value of symbols already present, it can help create more rewarding combinations and initiate additional Avalanches.

Change

Change replaces itself and ordinary symbols in the eight surrounding positions with a randomly selected regular symbol from that area. This can create a concentrated group of identical symbols, improving the possibility of forming a scatter win and continuing the Avalanche sequence.

Purge

Purge clears itself, wall sections and medium- and low-paying symbols from the playing area. Removing these symbols allows new ones to enter while potentially unlocking additional reel positions. It can be particularly useful when the grid contains a large number of lower-value symbols.

Bonus Spins

Landing 3, 4 or 5 Scatter symbols during the base game awards:

• 3 Scatters: 8 Bonus Spins
• 4 Scatters: 10 Bonus Spins
• 5 Scatters: 12 Bonus Spins

The bonus round introduces two important improvements.

First, the progressive win multiplier no longer resets between spins. Second, any additional reel positions unlocked through the special features remain available until the round finishes.

Special Wilds can also appear with a +2 multiplier value, increasing the accumulated multiplier when they contribute to winning combinations.

Every additional Scatter appearing during the feature awards 3 extra spins, providing further opportunities to increase the multiplier and expand the grid.

Super Bonus Spins

Super Bonus Spins are the more powerful version of the standard bonus round. They can activate when a qualifying combination of 3, 4 or 5 Scatters includes a Super Scatter. The initial number of awarded spins follows the same 8, 10 or 12-spin structure.

The main difference is the improved Wild mechanic. During Super Bonus Spins, at least one special Wild is guaranteed on every spin, carrying a multiplier value between +3 and +10.

As with the regular bonus, the accumulated multiplier and unlocked reel positions persist throughout the round. Additional Scatters award 3 more spins. This combination makes Super Bonus Spins the game’s most promising feature, particularly when guaranteed multiplier Wilds participate in repeated Avalanche wins.

Elevate Feature Buy

NetEnt includes an optional feature-buy system called Elevate, offering five different ways to modify the gameplay.

The menu provides flexibility between relatively inexpensive enhanced spins and direct access to the game’s most powerful feature. However, the 500x Super Bonus purchase represents a substantial investment relative to the normal stake, and none of these options guarantees a profitable outcome.

Availability of the Elevate feature may depend on the casino and applicable regulations.