PaseoBaggageI've been playing my way through this one. Currently have 35% completion.
You're a little submarine trying to find out what is making the wildlife aggressive. You have limited fuel to travel with which is also your health bar. The early game can be rough since you only start with three bars. There's no penalty for dying.
I like finding the upgrades and hauling them back to the base. The game is slow paced since you can only explore a little at a time before needing to refuel. It took a while before I found some add ons that let me interact with some of the road blocks. You can only have two at a time.
I also found a hidden upgrade, so getting 100% would probably be near impossible without a guide.