The iTunes Store offers downloads of Tomb Raider 1 for iPhone / iPad for 99 cents. (Google Play offers it for the same price for Android.) That's a $2 drop and the lowest price we could find for this classic action-adventure game.
iTunes offers downloads of Hitman GO for iPhone and iPad for 99 cents. (Amazon and Google Play sell it for the same for Android.) That's $4 off list and the lowest price we could find for puzzle game, although we saw it for free last summer.