Love it! Have you ever tried Modded Minecraft? Huge fan of the same types of games, and nothing except factorio hits quite as hard as expert packs in Minecraft for me.
Enigmatica 2: Expert Extended, Nomifactory (GTCEu Port), and Gregtech: New Horizons are some of the most engaging factory building games I've ever had the pleasure of playing! Highly recommend giving it a shot if you like that style of puzzle solving :)
