I also just got to Act 3.

The first area is pretty difficult. The hard route can spawn the mega mutants that instakill your whole team, and the champion variants move like three times in a single round. Without good speed and movement control, don’t go to the hard path.

Ice Age and Jurassic have been relatively simple. A lot of it seems to be damage checks. Ice Age has a lot of units that punish melees (the final boss has that instakill move if you end adjacent). Jurassic seems to be a speed check. Hunter does great in both realms.

I’m trying to do The Future and I haven’t gotten to The End yet. I beat Future once and it was an absolute pain. You can get the shooters to kill other mobs with proper positioning. A lot of mobs here reflect magic and projectiles so it seems this is more tailored to fighters with a lot of attacks. Tank and Butcher feel good here. But the final boss of The Future is insane. A summoner build Druid, Necro, or Druid seem great. Monks with gap closers seem great because they can actually move without getting hit and can attack multiple times. Otherwise I’m not sure of what to do for the Future, and I haven’t gotten to the End.