Here is the full list of all 75 FootRock achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
LEVEL75
LEVEL74
LEVEL73
LEVEL72
LEVEL71
LEVEL70
LEVEL69
LEVEL68
LEVEL67
LEVEL66
LEVEL65
LEVEL64
LEVEL63
LEVEL62
LEVEL61
LEVEL60
LEVEL59
LEVEL58
LEVEL57
LEVEL56
LEVEL55
LEVEL54
LEVEL53
LEVEL52
LEVEL51
LEVEL50
LEVEL49
LEVEL48
LEVEL47
LEVEL46
LEVEL45
LEVEL44
LEVEL43
LEVEL42
LEVEL41
LEVEL40
LEVEL39
LEVEL38
LEVEL37
LEVEL36
LEVEL35
LEVEL34
LEVEL33
LEVEL32
LEVEL31
LEVEL30
LEVEL29
LEVEL28
LEVEL27
LEVEL26
LEVEL25
LEVEL24
LEVEL23
LEVEL22
LEVEL21
LEVEL20
LEVEL19
LEVEL18
LEVEL17
LEVEL16
LEVEL15
LEVEL14
LEVEL13
LEVEL12
LEVEL11
LEVEL10
LEVEL9
LEVEL8
LEVEL7
LEVEL6
LEVEL5
LEVEL4
LEVEL3
LEVEL2
LEVEL1