Big Bass Secrets of the Golden Lake is an intriguing slot game developed by Reel Kingdom that whisks players away to medieval times. Players accompany a fisherman character dressed as King Arthur, who fishes in a lake that sits over his submerged castle, aiming to retrieve his famous Excalibur sword.

Key features and mechanics in the game are:

- Unique blend of classic fishing slot action and Camelot mythology lending a charming and incongruent mix of themes.

- The inclusion of a bonus round with no regular pay symbols, operating the same way as the regular bonus round.

- Prizes of fish that carry up to a solid 5,000x your stake, along with multiplier upgrades and extra spins from the trail.

- Theme and storyline placing players in a medieval fishing expedition where concealed treasures, including the long-lost Excalibur sword, can be found.

- Average volatility rating with a 5 out of 5 on the in-game volatility scale, meaning players can expect some fluctuations in their bankroll.

- A max win of 5,000x your stake with a 1 in 3,378,378 spins hit frequency.

- Symbols payout based on the number of matching symbols across up to 10 paylines. Different symbols have different paytable values which range from 0.2x to 200x the stake.

- The gameplay also includes fisherman wild and fish scatter symbols, that substitute any pay symbol and trigger Free Spins respectively.

- Addition of a new type of bonus round alongside the regular one.

- Ante Bet feature offers more scatters on the reel strips that increase your bonus round chances. This costs 50% extra per spin.

- Money symbol feature giving different-sized fish symbols representing larger money prize values. Fish money symbols range from 2x to 5,000x stake.

- Free Spins Pick Game initiates when 3, 4, or 5 scatters appear in view, awarding 10, 15, or 20 free spins respectively.

- Regular Free Spins round where the fisherman wild collects all present money fish prizes.

- Golden Lake Free Spins feature comes with no regular pay symbols, instead, only blanks, money fish, and the fisherman collector are in play.

- Random Bonus Round features that trigger with specific symbol configurations.

- Bonus Buy feature for eligible players, who can purchase the bonus round pick game for 100x the stake.