Here is the full list of all 7 DROPTCH achievements.
You sent out a CRATE
You read another Stranded's MESSAGE
Standing defiant against the odds, you took what the island PROVIDES
With COURAGE and CONVICTION, you stood against the ocean and made a HOME
A day has passed since FATE placed you here
You make your mark against the sea, forging TOOLS, proclaiming you are worthy
Remnants of those who came BEFORE you…