Here is the full list of all 291 Squares achievements. It takes around 2-3 hours to unlock all of the achievements on Windows.
Level 11 completed
Level 1 completed
Level 2 completed
Level 3 completed
Level 4 completed
Level 5 completed
Level 6 completed
Level 7 completed
Level 8 completed
Level 9 completed
Level 10 completed
Level 12 completed
Level 13 completed
Level 14 completed
Level 15 completed
Level 16 completed
Level 17 completed
Level 18 completed
Level 19 completed
Level 20 completed
Level 21 completed
Level 22 completed
Level 23 completed
Level 24 completed
Level 25 completed
Level 26 completed
Level 27 completed
Level 28 completed
Level 29 completed
Level 30 completed
Level 31 completed
Level 32 completed
Level 33 completed
Level 34 completed
Level 35 completed
Level 36 completed
Level 37 completed
Level 38 completed
Level 39 completed
Level 40 completed
Level 41 completed
Level 42 completed
Level 43 completed
Level 44 completed
Level 45 completed
Level 46 completed
Level 47 completed
Level 48 completed
Level 49 completed
Level 50 completed
Level 51 completed
Level 52 completed
Level 53 completed
Level 54 completed
Level 55 completed
Level 56 completed
Level 57 completed
Level 58 completed
Level 59 completed
Level 60 completed
Level 61 completed
Level 62 completed
Level 63 completed
Level 64 completed
Level 65 completed
Level 66 completed
Level 67 completed
Level 68 completed
Level 69 completed
Level 70 completed
Level 71 completed
Level 72 completed
Level 73 completed
Level 74 completed
Level 75 completed
Level 76 completed
Level 77 completed
Level 78 completed
Level 79 completed
Level 80 completed
Level 81 completed
Level 82 completed
Level 83 completed
Level 84 completed
Level 85 completed
Level 86 completed
Level 87 completed
Level 88 completed
Level 89 completed
Level 90 completed
Level 91 completed
Level 92 completed
Level 93 completed
Level 94 completed
Level 95 completed
Level 96 completed
Level 97 completed