Cool game idea. The simplified gameplay is used really well considering the 3 hour time limit. Really well done! 

Interesting idea - kinda reminds me off the Reigns-games where everything you gain is always just a trade-off. Fits the theme in an existential way I guess. Sometimes I couldn't quite read the numbers on the right correctly - or create some sort of visual warning if one number is almost at game-over-level. 

Great job!

Edit: it didn't really matter in this game since you don't really push x and z but in general z and y shouldn't be used as controls since they're switched on quite a lot of keyboards :)

Interesting idea i really liked it! But i wish i was warned when im about to die from thirst hehe