On Thin Ice is the fourth and currently final RIFTS season. It was available from December 12, 2019 to December 17, 2019. Players are limited to making 24 characters this season. The max level cap of pets is set to 70 (Max Rare). This season allowed players to obtain two UTs (Esben’s Shaman Attire and Esben’s Wedding Ring) before they were added as permanent drops from enemies in Original Mode.
The main gimmick of this season is to collect snowman body parts from dungeon bosses and use them to assemble an event boss, Jack Frost, which would drop dungeon marks needed to complete Tinkerer quests. The bosses themselves did not drop the marks, but the marks dropped by Jack Frost were determined by which parts were used to assemble it.
Like with Season 3: Infestation, players could purchase a Mad Pass to increase the quantity and quality of RIFTS quest rewards that were carried over to Original mode.
All of the Mad Pass quest rewards are recieved in the Legacy mode.
Following changes have been made to drop rates and items:
The following items have been added to each respective enemies’ drop tables: