Searching for an honest Tempered Steel review before you commit real money? You're in the right place. This is a Bulletproof Games slot, sitting firmly in the very high volatility bracket and paying back a published RTP of 94%. Visually it's wrapped in polished, characterful visuals, with the action running on a 5-reel grid running 20 paylines. If everything lines up, Tempered Steel can pay up to 1,002,800x your bet. Expect a hit frequency around 30%, which sets the rhythm of play. Let's break down what works and what doesn't.
Written by James Holloway · Last updated: January 2026
Tempered Steel comes to us from Bulletproof Games, built with crisp artwork and atmosphere and powered by a 5-reel grid running 20 paylines. The result is very high volatility paired with a return-to-player rate of 94%.
The mechanics are what make Tempered Steel interesting. Look out for scatter symbols that unlock free spins and extra bonus rounds. With very high variance, this one is aimed at players who can ride out the swings for the top wins. Overall it's a well-rounded release that knows what it is.
The RTP of 94% is below the industry average of ~96%. This is common for older slots or those with special features. The lower RTP may be offset by unique mechanics or higher maximum win potential.
Very high volatility delivers the most extreme payout profile — long dry spells punctuated by potentially massive wins. Only recommended for experienced players with substantial bankrolls and high risk tolerance.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Tempered Steel 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
Tempered Steel by Bulletproof Games is a solid offering that delivers good entertainment value. The 94% RTP combined with very high volatility creates a well-balanced gaming experience.