Acts 1 & 2 are still playable - enjoyably so; but Act 3 you can't play. When first enter Act 3, it is playable but with lag (a ton of it) but by time ready to cross Wyrm's Crossing, forget it. I've put my current playthrough on hold and bringing other characters through 1 & 2, although it is tough as my mind set was on my current actual playthrough. Surprisingly, Larian has been silent, which is very unusual for them. Won't deny it - am very disappointed with them right now.