A basic guide on how to complete the 7 hidden achievements on Rust.
Hidden Achievement Guide
Completely fill your food bar
Easily complete this by finding a river stream with pumpkins and corn.
Completely fill your hydration bar
Easily complete this by drinking from a fresh water source such as a river or lake.
Save the Planet
Recycle an empty can at a recycler
Easily complete this by looting food crates from monuments and roads.
Ride a horse for 1km
Easily complete this by finding a horse, these commonly spawn in wooded areas.
I'm the Captain Now
Reach the bridge of the cargo ship
Easily complete this by taking cargo with a group or when the servers inactive.
On the Deck
Land a minicopter on an oil rig helipad
Easily complete this on a creative server that allows you to spawn minicopters.
Too Cool for School
Kill 5 scientists
Easily complete this on a creative server whilst completing the "On the Deck" achievement.