Glad to learn you enjoy Lem. I think his stuff is well worth reading! And Pirx, though in my opinion not one of his best, has a special place in my heart because of the written assignment we got at school when we were discussing the book. Normally, for things from our reading list, we would have to write an essay about some aspect of the book (short and simple, but it still was boring to us kids). With Pirx, our teacher told us she disliked sci-fi so much she couldn't come up with a topic, and we were told to write any science-fiction short story. Anything with space, rockets or robots would do. That was the first piece of sci-fi I ever wrote, of course strongly inspired by Pirx.
I'm excited to learn there are improvements coming to the game, and I'm waiting for the next part!
Also, I've only realised just now - it's a funny coincidence your trucker's named P-Rix and my game in this jam has a creature called the P-Rex!