Online casino Slotland marked its 16th anniversary this autumn with a host of giveaways, and it is doing the same this Christmas with even more bonus offerings.A no-deposit bonus as well as match bonus with the online casino's lowest ever wagering requirement are on offer to players next week as Slotland marks the holiday season in style. Players can enjoy any of Slotland's 34 unique slot titles with an extra 45% courtesy of this weekend's special bonus. Players making a deposit using the code XMAS2014 between 23 and 25 December will be able to claim a trio of casino bonuses. 50% will be added to their first deposit with the next one being boosted by 70%. A third deposit will be doubled.The 30% bonuses on all deposits made from 26-28 December need to be played through just once to be unlocked.Keep an eye out too for this month's Slotland newsletter which features a slot game that awards a free $10, $20 or $30 no-deposit bonus.Slotland's collection of one-of-a-kind slots are all optimised for mobile use on iPhone, Android and tablet devices. Particular favourites include Gods of Egypt, the timely fairy tale inspired Ice Queen and Treasure Island which lived up to its name by awarding one lucky players with a $207,008 jackpot earlier this month.