Games with longevity

[pals94]

I am quite an avid ios gamer, but many of the games released for the platform get over real quickly. After playing many games, I have found that the following games can be played for a really long time, and are the games I always keep in my ipod -

1. Infinity Blade 2
2. Defender Chronicles 2
3. Dungeon Raid
4. Battleheart

Are there any more games like these, which have a long life?