Here is the full list of all 56 Project 5: Sightseer achievements.
Take control of a flying vehicle (non-drone).
Place a vehicle in the garage.
Visit 9 different biomes.
Give your outpost a custom paintjob.
Obtain a negative threat rating.
Build a road.
Store 15 different resources in one outpost.
Take control of another land vehicle.
Repair a wreck.
Give your vehicle a custom paintjob.
Obtain a positive threat rating.
Research Chemistry.
Buy or sell something to a trader.
Exceed the speed of 141 km/h (88 mph) while in a land-based vehicle.
Upgrade any item using an upgrade kit.
Name your outpost.
Discover an artifact.
Build a Science Lab and complete your first technology research.
Complete a quest.
Visit 3 different biomes.
Take control of a drone.
Establish your first outpost.
Craft an item.
Create a marker.
Make a cargo drone go collect something.
Take control of a ship.
Craft a tier 2 weapon.
Craft a tier 3 weapon.
Bribe a pirate.
Defeat a pirate.
Defeat a boss.
Heal another unit.
Revive another unit.
Bring another unit into a combat instance.
Win a combat instance.
Win a combat instance without dying once.
Establish a trade route.
Accept a trade agreement.
Discover a source of radiation.
Research an artifact.
Build a defensive turret.
Build an off-shore rig.
Research Survival Tactics.
Research Advanced Sensors.
Research Shielded Warfare.
Research Fission.
Research Fringe Science.
Research the Shuttle.
Obtain 1000 Credits.
Obtain 100,000 Credits.
Visit 27 different biomes.
Use a sensor to control something.
Have two or more outposts performing research at once.
Reach average item level 5 on any vehicle.
Reach average item level 10 on any vehicle.
Reach average item level 15 on any vehicle.