Diamond Strike

Diamond Strike sets its reels in a mine full of gems and coin symbols, but the game's identity comes from its bonus round rather than the base game. Landing enough coin symbols triggers a hold-and-win feature, where every coin locks in place and the remaining positions get a fixed number of respins to fill.

Every new coin that lands during the respins resets the counter, so a hot run can stretch the feature out considerably before it locks in a final total. Coins carry their own values, and some can hide jackpot tiers that pay out a fixed multiple of the stake.

Outside the bonus the game barely moves the needle volatility-wise; nearly all of it is loaded into the coin round, and the payout return lands at 96.0%.

Best suited to players who like hold-and-win formats and don't mind spinning through a quiet base game to reach them. Wolf Gold and Dragon Gold further down use a similar structure with different themes.

The base game's gem symbols pay modestly on their own, so most players spin through it mainly to reach the coin trigger rather than for the regular line wins. Jackpot-tier coins are rarer than standard-value coins but not hidden behind any separate trigger.

The number of positions available at the start of the bonus depends on how many coins triggered it in the first place, so a bigger trigger genuinely opens up more room to fill. That scaling detail is easy to miss on a first playthrough.