Searching for an honest Boom Bastic review before you commit real money? You're in the right place. This is a Merkur slot, sitting firmly in the a medium high-variance maths model bracket and paying back a published RTP of 95.98%. Visually it's given an engaging visual treatment, with the action running on 15 paylines across 5 reels. It first went live in 2020 and still earns its place today. Top wins are capped at 5,000x your stake, a healthy ceiling worth chasing. But is it actually worth playing? Read on.
Written by James Holloway · Last updated: January 2026
Boom Bastic comes to us from Merkur, given an engaging visual treatment and powered by a 5-reel grid running 15 paylines. The result is medium high volatility paired with a published RTP of 95.98%.
Dig into the bonuses and Boom Bastic starts to stand out. Look out for scatter symbols that unlock free spins and extra bonus rounds. Its medium high variance balances steady wins with the odd larger payout. On balance, Boom Bastic is a dependable option worth a few spins in the demo first.
At 95.98%, the RTP is slightly below the industry average of ~96%. While this is typical for many popular slots, players should be aware of the slightly lower theoretical return.
Medium-high volatility means wins come less frequently but tend to be larger when they hit. Players should be prepared for dry spells between bigger wins, requiring a moderate bankroll.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Boom Bastic features scatter symbols that can trigger free spins rounds. Landing the required number of scatter symbols anywhere on the reels activates the free spins feature, giving you extra chances to win without additional bets. During free spins, special modifiers may apply to boost your winning potential.
3.0 / 5 — Good
Boom Bastic by Merkur is a solid offering that delivers good entertainment value. The 95.98% RTP combined with medium high volatility creates a well-balanced gaming experience.