This one is special, I'm pretty sure it is the second game I've been playing the most my entire life (only losing to minecraft) ever since 2012.

There is no doubt that Repentance is the definitive version of Isaac, and it's definitely my favourite roguelike ever. It hits an amazing sweetspot in between rewarding the player for being skilfull and also for having a deep understanding of the hundreds of mechanics. It's feels so amazing to master and yet after thousands of hours I keep learning about this game.

Even though I have complains about many systems and mechanics you can say they are definitely not that bad if went throught and 100% completed it.

This one is not a must play. It's a will play, and once you're in you'll keep coming back to it.