Same here re: Ubisoft cookie cutter open worlds. I LOVED the first ~40 hours of Immortals and thought I was approaching the end until I realized I was less than halfway at the rate I was progressing. I have no idea how length estimates like the ones on How Long to Beat are accurate for this game; usually they're pretty spot on for my "complete what I find fun and interesting and not much else" play style. I gave up on the game after briefly skimming FAQs to see what I had left.