Two new survivors including the Sniper's spiritual successor
Interesting new Void items
Even more bangin' Chris Christodoulou music
Simulacrum mode a neat alternative mode
Easily able to enable or disable SotV content

Various new aspects that feel unfair and RNG-dependent, and/or require balancing

After sinking more than a hundred hours into the amazing base game throughout the duration of Early Access and beyond, supporting Hopoo by purchasing additional content is a no-brainer considering the immense value-for-money proposition of the base game. As of writing, I have not unlocked the Void Fiend, but the Railgunner is an absolute delight - even if I just can't aim to save my life.

There are definitely some teething issues at the moment, though. I've played for a while and some of the content and undocumented changes feels a little bit too punishing to deal with, especially on characters with poor mobility (case in point, Void Fields and Void Seeds). The new Needletick debuff is especially brutal if you're unluckily afflicted by it, and the only real way to circumvent it is to magically get 1 of 2 possible items that clean/prevent debuffs.

This is still an easy recommend from me, but do prepare to be a bit frustrated with the game mechanics all but killing you out of nowhere at times.

A rather hefty 35% launch discount is all it took to seal the deal for me.