Here is the full list of all 32 Tents and Trees achievements.
Complete 15 levels.
Complete 60 levels.
Complete 175 levels.
Complete 350 levels.
Complete 1000 levels.
Complete 20 9x9 levels.
Complete 20 11x11 levels.
Complete 20 13x13 levels.
Complete 20 15x15 levels.
Complete 20 17x17 levels.
Complete a level (8x8) in less than 1:25.
Complete a level (10x10) in less than 1:35.
Complete a level (12x12) in less than 2:45.
Complete a level (14x14) in less than 4:30.
Complete a level (12x12) for the first time without using hints or undos.
Complete a level (13x13) for the first time without using hints or undos.
Complete a level (14x14) for the first time without using hints or undos.
Complete a daily level two days in a row.
Complete all the daily levels for one day.
Complete a level (7x7) placing only tents without mistakes.
Complete a level (8x8) placing only tents without mistakes.
Complete a level (9x9) placing only tents without mistakes.
Complete a level (10x10) placing only tents without mistakes.
Complete a level (11x11) placing only tents without mistakes.
Place a link between a tree and a tent.
Complete a level in dark mode between 10 PM and 7 AM.
Complete all the classic packs.
Complete a daily pack easy in less than 3 minutes without using hints.
Complete a daily pack hard in less than 9 minutes without using hints.
Complete 14 daily packs over the last 7 days.
Complete a level with 2 players.
Complete a level with 4 players.