Developer 
Lines Christmas Gems Hold And Win by 1spin4win is a festive slot with a Christmas theme, jewel-style symbols and a Hold & Win bonus mechanic. The game uses 243 ways to win, with stakes from 0.01 to 50 and a medium volatility profile. The stated RTP is 97.1%.
In the base game, players spin the reels to form matching combinations of coloured gems and letter symbols. The main feature is the Coin Respin bonus: three coins start the round, and each new sticky coin that lands is held in place while the respins reset. The feature can continue until all 15 coin positions are filled.
A demo version is available, allowing players to play for free and practice before playing for real money. The bonus structure includes jackpot-style prizes, such as the x100 Mini Jackpot Coin and the x1,000 Megapot, which are linked to the coin collection feature.
