Hands down, this is incredible. I really can't compliment it enough, I got sort of obsessed. Please, *please* expand this into an even larger game after the jam, if you do then contact me and I will buy it immediately. I was so engrossed and determined to survive that I literally, as you can see below, got out a sheet of paper and drew a map to optimize my exploration. I died after about 2 weeks the first time and immediately restarted, realizing movements were so much more precious than I treated them like when I first played. It made the sense of slow death and "failure is inevitable" feel so real. The pixel art is gorgeous, the interface is great (love the hour & temperature representation), the writing is compelling, the gameplay is fun and satisfying, just, wow. I just watched the Martian a week ago, so...perfect timing :)
I assume that after you finish all the upgrades there's nothing left to find, right? On my 2nd playthrough I had all the upgrades by day 20. After running as far as I could in a couple directions, I just started sleeping the day away for new messages until I started getting the same one, at which point I think I came as close to "beating it" as I could? If you turned this into a game with an end story, I'd play it again in a heartbeat.
Only issues I noticed (besides not being sure when I'd "done everything there was to do") is that when you upgrade the rover, the info/message you get during the upgrade goes away when it ends, so I never even got to read the message for rough terrain wheels.
ld50 martian game map.jpg