I remember playing the original and liked it. This one was good as well, but felt a bit linear to me.

Yeah, the pickaxe quest was bugged. I have since fixed it and updated the links. For the last gunpowder, I'd check a little more around the spawn area for things that stick out!

Today I went back to check it out and managed to complete it. It took me a while to find the redstone and would've loved it more, if it was also something that you get with the pickaxe.
One bigger gripe I had though, was that the last few Zombies were always way too far away from me. I always had to run around the map trying to find them. In the nether it seems like there is one Zombie, that spawns in the starting room (when I checked with noclip).
 
But other than that, this is a good map. I hope to see more in a similar vein!

The map itself was quite interesting, but I never managed to get one of the Gun Powders, the stick and the Redstone.
 
Also the pickaxe step seems to have been bugged. I activated it, but no matter what it kept saying to kill 50 Zombies and 15 Dogs with it.