Developer 
Lines Sun Treasure by 1spin4win is a 3x3 casino slot with a sunset island theme, letter symbols, treasure-hunting icons, Wilds and Coins with multipliers. The game uses 27 paylines, shows high volatility and lists an RTP of 97.1%, with a bet range from 0.01 to 50.
The main feature is the Hold and Win bonus. Landing 3 or more Coins triggers the round, which starts with 3 respins. Each new Coin resets the respins, and the feature can continue until the grid fills or the bonus ends. The game description also mentions up to 9 Coins, a Mini Jackpot Coin worth x100, and a Mega Jackpot of x1,000.
A Buy Bonus option is available for players who want to enter the bonus immediately. The demo version lets users play for free and practice before playing for real money, while checking how the symbols, multipliers and bonus round work in the slot.
