Overall

It's a fun pack, play it!
I finished the pack solo in 75 hours, there is post-game content but I did not care for it.

What I liked

• The custom made "Vaults" were very fun to explore, except the maze which was broken for me
• A great introductory for newer mods (speaking as a 1.12 player) like Oritech and Just Dire Things
• I enjoyed the spawn area with the questline even though I didn't read any of the lore
• Early game is really fun and properly balanced with exploration and automation.
• The concept of the World Engine and the requirements to craft certain items

What I think could be improved

• Too many chickens! I ended up making them all because they're just by far the best way to generate resources
• The shops felt more like "we couldn't think of a good way to implement this so let's just make it a shop item"
• After the early game the pack didn't feel like "stoneblock" anymore, but just a kitchensink/tech/exploration pack which happened to be in a stone world. The different NPCs in the spawn area sell a certain item which makes it trivial to traverse to a certain "ring" in the world, and from there its just digging in a straight line where you want to go and thats it.
• The dungeons generating in each of the rings weren't worth it after early game
• Why was projectE in the pack? There were maybe 4 items with EMC, and the only other things you could make was the armor and the tools, but there are plenty other and more fun options.
• I wish it was easier to see what new recipes I could make after upgrading the world engine.
• In the final chapter you'll be working with mekanism a lot. Specifically reactors , nuclear waste and especially Antimatter . I really disliked this part, I made both the fission reactor and turbine almost as big as they go, and it still took multiple hours to get all the Antimatter needed to create a better way of obtaining it. I ended up cheating in 10 Antimatter for the Antimatter chicken purely because I had nothing else to do in the pack at this point and I did not feel like tripling my already big setup. Not to mention the power requirement to run the antimatter machine was leagues higher than everything else in the pack. I would've loved to see a different approach to this finale.