Nightmares VS GigaBlox

Nightmares VS GigaBlox Slot Review

Gargoyles guard the frame of Nightmares VS GigaBlox, jack-o’-lanterns glow in the fog below the reels, and two monsters wait on the grid to fight for your stake. That’s the whole idea, and it’s a better one than another round of jump scares. The question is whether the battle underneath the carved stonework justifies the build.

ReelPlay‘s 6×6, 50-payline release runs at 96.1% RTP with medium-high volatility, a hit rate of 24.5% and a ceiling of 7,353x the bet. It sits in the studio’s catalogue alongside Atlantis 10K Ways and 10000 Wonders 10K Ways, though the big-block format gives this one a different feel to both. Stakes run from 0.50 to 20 per spin.

Base Game & Features

The game plays out on a 6×6 grid with 50 fixed paylines. All wins pay left to right, coinciding wins are added together, and only the highest combination counts on each line. The base bet is the total stake divided by 50, and every paytable value is multiplied by that base bet.

Gigablox

Any symbol can land as a Gigablox. These are oversized symbols that function as individual symbols in formations from 2×2 up to 6×6, meaning a single block can fill the entire reel set. When a large Gigablox lands across several paylines at once, it counts as that many separate symbols, which is how the grid produces big clusters of coinciding wins.

The wild substitutes for all symbols except the scatter, and always stands in for whichever symbol creates the highest possible win on the regular paytable. The scatter has one job only: land six or more of them anywhere on the grid and the bonus round begins. Because Gigablox can be scatters too, one oversized block is sometimes all it takes.

There are six high symbols and four low royals. Values below are multiples of the base bet for three, four, five and six of a kind, so divide by 50 to translate them into your total stake – the top symbol’s six-of-a-kind, for instance, is worth a tenth of the full bet:

• Top high symbol: 50, 80, 160, 500
• Second high symbol: 35, 50, 80, 200
• Third high symbol: 20, 30, 50, 125
• Fourth high symbol: 20, 30, 50, 125
• Fifth high symbol: 10, 15, 40, 125
• Sixth high symbol: 10, 15, 35, 125
• Low royals: 5, 10, 15, 75

The high end of that table is fairly flat beyond the top two symbols, which tells you where the base game’s money comes from: Gigablox clusters stacking several mid-tier wins into one spin, rather than any single line paying big. It’s a grid built for volume, not for hero symbols.

Nightmares VS GigaBlox Bonus Features & Free Spins

The VERSUS Feature awards six free spins and picks two characters at random: a Champion and a Challenger. Every Champion and Challenger symbol that lands during the spins is collected, and as the collections climb, both characters improve the round. The reels effectively become a battleground where the two monsters upgrade themselves as they land.

Each character climbs its own ladder, and the rungs are worth knowing in detail:

• 5 collected: 2x multiplier for the Champion symbol, 2x multiplier for the Challenger symbol
• 10 collected: 5x Champion multiplier, +2 free spins for the Challenger
• 20 collected: Champion symbol turns Wild, 5x Challenger multiplier
• 30 collected: +3 free spins for the Champion, +2 free spins for the Challenger
• 45 collected: Champion turns 2x Wild, Challenger turns Wild
• 60 collected: +3 free spins for the Champion, +2 free spins for the Challenger
• 75 collected: Champion turns 5x Wild, Challenger turns 2x Wild
• 100+ collected: Major Prize for the Champion equal to symbols collected multiplied by the bet per spin, with the Challenger’s Major Prize doubled if its collection also reaches 100

Those rungs interact. Once the Champion symbol is both wild and carrying a 5x wild multiplier at 75 collected, every further Champion symbol that lands is a paying wild across 50 paylines.

Where a symbol multiplier and a wild multiplier appear in the same spin, they’re multiplied together for the awarded prize, and only the highest wild multiplier in a line counts. So a 5x wild sitting in a line with a 2x symbol multiplier pays 10x that line’s value.

The free spins themselves are where the feature’s length comes from, not the scatters. Scatters don’t appear during the round at all, so the ladder’s spin awards at 10, 30 and 60 collected are the only way the round extends beyond its opening six. A round that collects well can run to a dozen or more spins; a quiet one is over almost as soon as it starts.

The round is played at the same bet as the triggering spin. The Major Prize, if it’s reached, is paid at the end – equal to the Champion symbols collected multiplied by the bet per spin, then doubled again if the Challenger’s collection has also hit 100.

Bonus Buy

Where jurisdictions allow it, there’s a direct route into the main event:

• VERSUS Feature buy: 80x bet per spin, running at 96.0% RTP

The buy plays a spin that’s guaranteed to trigger the feature, which then plays out under the standard rules and at the same bet as the triggering spin. At the 20 top stake that’s 1,600 for a single guaranteed entry, so the buy is priced for players who already trust the ladder to deliver.

Our Honest Verdict

Overall Rating: 7.2/10

This is a game you play for one fight. The base game is mostly Gigablox clusters paying modest change, and it can feel like a holding pattern between the real events. Then six scatters land and the whole thing makes sense.

The collection ladder is the best thing here, because it makes every spin of the bonus matter twice – once as a win, once as progress up a ladder that keeps changing what the round is. That’s rare in a free spins round, and it’s what makes the quiet rounds bearable and the good ones genuinely tense.

The weakness is just as real: most rounds never get near the rungs that pay, and six spins is a thin opening hand. It suits horror fans and patient players who’d rather have one escalating bonus than constant base-game noise. Anyone chasing frequent features will find the gaps between battles long, but for the rest, the monsters are worth the wait.

Nightmares VS GigaBlox FAQs

• What is the RTP of Nightmares VS GigaBlox?

  The overall theoretical return to player is 96.1%. If you use the bonus buy, that version runs slightly lower at 96.0%.
• Is Nightmares VS GigaBlox high volatility?

  It’s rated medium-high, so expect longer gaps between meaningful wins than a low-variance game, with the bigger prizes concentrated in the VERSUS Feature.
• How do you trigger the VERSUS Feature in Nightmares VS GigaBlox?

  Landing six or more scatter symbols anywhere on the grid starts the round. Because any symbol can land as a Gigablox, a single large scatter block can count as six or more individual scatters.
• What do the Champion and Challenger collections do?

  Every Champion and Challenger symbol that lands during the free spins is collected. Reaching collection thresholds awards symbol multipliers, extra free spins and symbols turning wild, with a Major Prize at 100 or more collected.
• Can you buy the bonus on Nightmares VS GigaBlox?

  Yes, where jurisdictions allow it. The VERSUS Feature buy costs 80x your bet per spin and plays a spin guaranteed to trigger the feature, which then runs under the standard rules.
• Can the VERSUS Feature free spins be retriggered?

  Not by scatters – they don’t appear during the round at all. The only way the round extends is the collection ladder, which awards extra free spins at the 10, 30 and 60 collected thresholds.
• How many paylines does Nightmares VS GigaBlox have?

  It has 50 fixed paylines on a 6×6 grid, with all wins paying left to right and only the highest combination counting per line.
• What are the bet limits on Nightmares VS GigaBlox?

  Stakes run from 0.50 to 20 per spin, which keeps the 80x bonus buy within reach of most bankrolls that play the base game regularly.