Melvin's Blocky Adventure features Melvin, a robot, stranded in a grid-based watery world. Melvin doesn't really know how he got there, but with his wit (and his five balloons), he is sure to find a way of this world. Control Melvin to solve block-based puzzles to advance through the ever more difficult puzzles.

The puzzles are based on a few simple rules:

• Walk up the block if the height difference is one.
  
• Push the block if the height difference is exactly two.

The rules may seem simple, but don't be fooled, the puzzles get increasingly more difficult and the worlds inhabitant may also have a say in Melvin's success.

The game focuses on creating a serene atmosphere where there are no time limits or stressful moments, only Melvin versus the puzzle. With unlimited undos and being able to reset the puzzles, it provides a satisfying puzzle-solving experience where brain power is more important than muscle memory.