They’re nice. I wouldn’t be surprised if you liked Superliminal more because I think it’s a more unique concept than either. It’s been a while since I played either, but I think Lightmatter was a more unique concept for puzzles than Turing Test, but Turing Test had some reasonably interesting stuff going on story wise (not amazing, but I have a bit of a soft spot for the kind of Chinese Room philosophy stuff). Either way, they’re worth a look, I think! Sometimes you just want something to scratch the first person puzzle itch and there aren’t thaaaat many games in the category!