I think the difficulty level of the game is pretty tough as of now. I know its a rougelike and its supposed to be challenging but i think the AI difficulty level scales up considerably once you get to the second map and becomes REALLY hard. I've played this game about 8 times and have only finished till the end of the early access campaign twice. 60% on losses due to resources, 40% due to battle.
Interesting. I think this game is easy right now. I've played the first 2 levels a ton of times, and maps 3+4 a ton of times, and I have yet to die or lose a battle. I don't even have to heal, and I finish the game fine. Its good that the dev gets feedback like yours, if the dev only gets feedback from people like me, then he'd probably be tempted to ramp up the difficulty a lot.
Sometimes when starting a few of the first points on the map the "enter combat mode" screen freezes which forces the player to exit to the menu manually. When trying to load from this position, the save state is corrupted, not allowing you to pick up where you left off. If you had a good start, this can be a bummer. Probably a bug but i figured was worth mentioning. Otherwise, after the first couple of points of the map are reached, this doesn't happen at all and saving works fine.
I've never had this happen. Sounds like its specific to your system. Maybe send him a bug report, with some game logs?
Overall I'm really LOVING the game though. I never leave feedback like this for games in dev but i can see myself playing this game a lot upon its final release. Really excited to see the final product and evolution of the game!