The Flame in the Flood

This achievement is buggy and my solution is a bit of a workaround.

Here's the method I used to get the "Seafarer" achievement. I played campaign mode and upgraded my raft until I had one upgrade left. Then I kept playing until I had enough material to finish the last upgrade. After passing a checkpoint, I found a marina and performed the last upgrade. This brings the progress tracker to 87% (this is where the progress usually gets stuck). I then died and reloaded the most recent checkpoint and searched for the next marina where I performed the last upgrade again and this brought the progress tracker past the 87% "sticking point".

As a side note, I had completely deleted my save after the patch. I'm not sure if this is necessary or not. I hope this helps some of you unlock this achievement. Peace.

Currently a glitched achievement and is unobtainable.

The idea is to upgrade your raft with every possible craftable upgrade in a single playthrough. you can do those upgrades only at a marina.

You'll need to collect many raft schematics, raft hardware, and raft framework to create all the necessary upgrades. you craft all of those with many nuts and bolts and old lumber.