The Zipline & Rail Update Title update for Rust has 18 achievements.
Start a fully repaired car with a full set of T3 engine parts
Plant a different seed in every slot in a Large Planter Box
Catch one of every fish
Travel to an underwater lab with a submarine
Wave at 5 different players
Land a Minicopter on the Cargo Ship
Win 3 rounds of poker at Bandit Camp
Complete 5 missions for NPC's
Kill another player with the MLRS
Kill 10 Tunnel Dwellers while on a moving work cart
Kill 3 sharks with a speargun
Travel 3KM with a companion in a Kayak
Watch another player through a CCTV camera
Activate the Excavator
Recycle 10 cars at Junkyard
Pilot a Scrap Transport Helicopter with 5 passengers
Drive a modular car with 5 passengers
Acquire a snowmobile in an Artic Research Base