[MMM]

Kanji Sono Mama Rakubiki Jiten (漢字そのまま楽引辞典）

I use this every day for my work. It is not a "game" but a dictionary. It is perfect for looking up kanji I am not familiar with, as I can just write them in. And it has definitions in English (not for every word, but a majority).

If you want to look up kanji you don't recognize or if you know the hiragana, but not the kanji, it is perfect.