This game becomes repetitive really quickly and doesn't have enough content in it to make it worthwhile the amount of time it'd take to finish it. You have to find pieces scattered around generated islands and bring them back to the starting position to do 'something' (What that something is I don't know, I never finished it). As you progress new enemies will appear that will ramp up the difficulty. The way I see it this game has 3 main elements, combat, stealth and exploration.
The exploration aspect of the game is extremely lacking as there is rarely anything interesting to find. Just more and more houses to scavenge for supplies and the occasional 'something' piece. You can find diaries and stuff that help you understand the setting but they are rare'ish loot and without them there is barely any kind of narrative. It's just not fun to explore because there is nothing worth finding. Just more random houses that does nothing.
The combat in the game is boring, I understand that it is not meant to be a combat oriented game and that you need to preserve your resources in order to survive long-term, but whenever combat 'does' happen it is extremely clunky. I ended up just sitting behind a wall and then waiting for a robot to pop around the corner so I could blow the head off and that's it. There are traps you can use (which are especially useful for the robot dogs) but the enemies might not walk into a trap and then you might be ♥♥♥♥ out of luck.
And finally, the stealth, in order to not attract attention you need to sneak around sometimes but when you progress far enough into the game it becomes a necessity to stealth in order to avoid being cluster♥♥♥♥ed by dogs. The problem? It's a sandbox world where you have to travel large distances. It isn't fun to move the speed of a slug when all you want to is to just get another damn 'something' piece. The stealth works well enough on its own merits but the problem is the amount of distance you need to travel 'and' the necessity to use stealth. It becomes tedious real fast.
The setting is really interesting, the enemies are well designed, the concept behind stealthing around and using resources is great. But the gameplay is boring, repetitive and tedious.
What the game needs is a stronger narrative, it needs to ditch the generated islands in favor for consistent set-pieces, it needs to polish the resources system, the healing system and the combat system. It needs to have something more worthwhile to find while exploring, like unique mini-bosses, NPC's, locations, puzzles and traps. And it needs to ditch the extremely repetitive "Fetch 24 'something' pieces" for a more clear and focused story.
If a sequel does what I just suggested then I'm definitely getting it. But 'this' game? It ain't worth it. Even on sale.