Developer 
Lines Wild Heart by BGAMING is a 5-reel slot with 4 rows, medium-high volatility, and a reported RTP in the 96.92% range. The game uses a 10-spin cycle that builds toward the final spin, where marked heart symbols return as Wilds on the same positions. This structure adds a clear rhythm to the gameplay and may appeal to players looking to study the slot mechanics in a demo version before playing for real money.
Three or more Scatter symbols trigger 10 free spins, during which Sticky Wilds remain in place for the duration of the bonus round. The feature set focuses on repeated winning opportunities rather than complex side games, with the free spins round acting as the main bonus event. The bet range runs from 0.2 to 80, giving the slot a wide entry point for different staking levels.
Players can also use the Buy Bonus feature to access the Free Spin round directly, with options linked to different Sticky Wild quantities. This makes Wild Heart a slot play for free option for those who want to review the cycle, symbols, and bonus structure before deciding whether to continue with real-money play.
