Arkham Asylum + City + Knight + Season Pass. It's not a true bundle though, so you want get a discount if you own some of the titles already. Watchmen The End is Nigh is also worthy of mention, …
![[PC, Steam] Batman Arkham Collection $12.74 (85% off), Watchmen: The End is Nigh $3 (60% off) @Steam](https://files.ozbargain.com.au/n/99/866299.jpg?h=0d9f3606)
