The Large Grids Update Title update for Tents and Trees has 11 achievements.
Complete 20 19x19 levels.
Complete 15 large packs.
Complete a level (16x16) in less than 6:00.
Complete a level (18x18) in less than 7:45.
Complete a level (20x20) in less than 10:00.
Complete a level (15x15) for the first time without using hints or undos.
Complete a level (16x16) for the first time without using hints or undos.
Complete a level (17x17) for the first time without using hints or undos.
Complete a level (18x18) for the first time without using hints or undos.
Complete a level (19x19) for the first time without using hints or undos.
Complete a level (20x20) for the first time without using hints or undos.