Oppositely Opal

This is a fun, relatively short game with a great sense of humour and a lovely writing style. The puzzles aren't too tricky (although I occasionally felt that I'd come up with a valid solution that simply didn't work), and the in-game hint system is great at nudging you in the right direction without spoiling too much. The game embraces its light-hearted quirkiness, resulting in puzzles that are a joy to solve. The story is slightly more poignant than I'd expected, which was a nice surprise.