Masterful... I love all the subtle touches that make things more forgiving: the instant restart option, grating off the water level so you know you don't need to explore further there, the completion tells on the transporters, the frequent checkpoints. I was bracing myself to get frustrated but it was just pure joy from start to finish.
My nest order (rot13.com): Haqrejngre -> Jvaqzvyyf -> Haqretebhaq Cvyynef -> Gerrf -> Pbafgehpgvba Fvgr -> Jngre Gbjre