Heaven's Vault is the only game I know that had me convinced I knew what I needed to do, without realising that noone ever told me what I was doing. I played for hours, just reacting to events in the world and revelling in the joy of discovering the in-game language. Starting with a single word, and trying to extrapolate the meaning of glyphs etched into artifacts you find on the many moons, ruins, and from traders is the most bizarrely excellent and exciting system I've played with in ages! I'm honestly sad that there are no other games quite like it. The conversations flow naturally (though only when you realise that Aliya, the main character, has preexisting character flaws that you discover over time - or "is a bit of a jerk", as I thought when starting), and there are so many options to discover that multiple playthroughs work well. The visual style is interesting; though it was controversial when initially announced, you soon get used to it and just enjoy the world.
