Here is the full list of all 29 Beyond Contact achievements.
Survive 100 days alone in a single game.
Activate 5 Obelisks in a single game.
Travel to every biome in a single game.
Speak with the Overseer.
Kill one of each Corrupted Brachylon type in a single game.
Cook 6 unique types of food.
Be revived by an Obelisk.
Survive 30 days alone in a single game.
Use the Transporter to teleport.
Survive 5 days alone in a single game.
Speak with a Brachylon.
Scan everything at the Survivor's Camp in a single game.
Kill 250 Urchins.
Refine 200 Feron.
Slaughter 50 Chitterlings.
Craft 37 ThermoSticks.
Craft every armor set.
Complete all the Objectives.
Survive 50 days with another player in a single cooperative game.
Survive 200 days with another player in a single cooperative game.
Build the Workbench, Micro Refinery, Oven and Oxygenator.
Build 10 Storage Crates in a single game.
Scan everything at the crashed Aurelius in a single game.
Listen to the Captain's emergency broadcast.
Be revived by an Obelisk 15 times.
Save Ketern in a single-player campaign using Story or Normal difficulty.
Save Ketern in a cooperative campaign using Story or Normal difficulty.
Save Ketern in a single-player campaign using Hardcore difficulty.
Save Ketern in a cooperative campaign using Hardcore difficulty.