30 minutes seems about right, I only did it on Easy difficulty though so I wouldn't be surprised if it's longer on the harder settings. The final boss in the dungeon only took four incendiary bazookas, I had a harder time fighting through the waves leading up to him due to the fairly narrow pathways.
In a nutshell, buy it if you like the game but don't buy it if you just want the achievement- I'm surprised they only added 15g, have they announced plans to be adding more DLC to turn this into a 250g game?
Originally Posted by NewSparta
The only problem I had was I couldn't find the Artic Explorer Gloves. Ticke me off because the set would have been really nice D:.
I've just ran through it but I didn't think to note which piece was where- the chest that seems the most possible to miss however was a section guarded by three ice giants (or whatever they're called, the white rock monsters) and some ice spiders. It's slightly off-camera next to an ascending slope, instead of going up you walk towards the camera instead to pan out and reveal the cul-de-sac.