Here is the full list of all 24 Subcube achievements.
solve at least one level with minimum moves
solve more than nine levels
solve at least one level with less than 2*minimum moves
solve at least one level
solve more than 9 levels with minimum moves
solve more than 29 levels with minimum moves
solve more than 59 levels with minimum moves
solve more than 99 levels with minimum moves
solve all levels with minimum moves
solve more than 9 levels with less than 2*minimum moves
solve more than 29 levels with less than 2*minimum moves.
solve more than 59 levels, with less than 2*minimum moves
solve more than 99 levels, with less than 2*minimum moves
solve all levels with less than 2*minimum moves
solve more than 29 levels
solve more than 59 levels
solve more than 99 levels
solve all levels
Get at least 4000 points in infinite mode
Get at least 12000 points in infinite mode
Get at least 32000 points in infinite mode
make 2 cubes with one move
make a Cube in infinite mode
make a huge Cube in infinite mode