Here is the full list of all 155 Risk of Rain Returns achievements.
Pilot: Kill 10 enemies without touching the ground or geysers.
Sniper: 1-shot kill 10 enemies consecutively.
Obtain 7 Monster Teeth and 1 Guardian Heart.
Drifter: Get 20 temporary items at once.
Get a gold rank on at least 15 Providence Trials.
Complete the Providence Trial "Perilous Descent". Alternatively: Collect 300 items as Drifter.
Complete the Providence Trial "Equivalent Exchange". Alternatively: Complete 25 stages as Drifter.
Complete the Providence Trial "A Duplicator?!".
Find the Artifact of Sacrifice.
Level up to level 20.
Recycle 6 drones in one playthrough.
Mercenary: Beat the game on Monsoon difficulty.
Acrid: Spread Epidemic to 25 enemies.
Sniper: Achieve 15 consecutive perfect reloads.
Complete the Providence Trial "Don't Think, Feel". Alternatively: Complete 25 stages as Mercenary.
Complete the Providence Trial "Shadows of the Past". Alternatively: Defeat 3,000 enemies as Mercenary.
Engineer: Kill a boss in 15 seconds or less.
Complete the Providence Trial "Assassination Contract". Alternatively: Collect 300 items as Mercenary.
Mercenary: Eviscerate 50 enemies.
Beat the game 5 times.
Find the Artifact of Honor.
Complete the Providence Trial "Main Systems Offline". Alternatively: Defeat 3,000 enemies as HAN-D.
Complete the Providence Trial "A Toxic Path".
Complete the Providence Trial "Break the Targets!". Alternatively: Complete 25 stages as Miner.
Complete the Providence Trial "Gup Sorting?".
Find the illegal shipment.
CHEF: Have 20 cleavers out at once.
Complete the Providence Trial "Scorching Heart". Alternatively: Collect 300 items as Miner.
Acrid: Kill Acrid in less than 15 seconds.
Miner: Survive the teleporter event without falling below 50% health.
Complete the Providence Trial "Uncontrolled Experiment". Alternatively: Defeat 3,000 enemies as Acrid.
Complete the Providence Trial "Think of the Children".
Complete the Providence Trial "A Rung Above".
Complete the Providence Trial "Emergency Ejection".
Complete the Providence Trial "Get Off My Lawn!".
Clear a path for the survivor.
Survive in lava for 1 minute straight.
Find the Artifact of Command.
Complete the Providence Trial "From All Angles". Alternatively: Complete 25 stages as Engineer.
Complete the Providence Trial "Bullseyes Only". Alternatively: Complete 25 stages as Sniper.
Complete the Providence Trial "A Fresh Harvest". Alternatively: Collect 300 items as CHEF.
Complete the Providence Trial "Kited Blades".
Complete the Providence Trial "The Right Ingredients". Alternatively: Defeat 3,000 enemies as CHEF.
CHEF: SEAR/FLAMBE 20 Sand Crabs
Reach max barrier.
Find the Artifact of Spite.
Kill 12 enemies simultaneously using the Gold-Plated Bomb.
Deal 5000 damage in one shot.
Find this item hidden somewhere in the world to unlock it.
Unlock a golden chest with the Explorer's Key.
Obtain Meat Nugget, Bustling Fungus, Sprouting Egg, Bitter Root and Foreign Fruit in one run.
Find the Artifact of Glass.
Die 50 times.
Complete the Providence Trial "Danger Orbits". Alternatively: Defeat 3,000 enemies as Artificer.
Complete the Providence Trial "Ruins of the Future". Alternatively: Collect 300 items as Loader.
Complete the Providence Trial "Race to the Finish!". Alternatively: Collect 300 items as Pilot.
Complete the Providence Trial "Juggling Priorities".
Use the same Equipment Activator 5 times.
Loader: Travel 6,500 meters using the Hydraulic Gauntlet
Acrid: Spread 3,300 feet of caustic sludge.
Use a health shrine that drops you below 5% health.
Have 4 drone helpers at once.
Complete the Providence Trial "Highway Robbery". Alternatively: Collect 300 items as Bandit.
Complete the Providence Trial "Go On Without Me". Alternatively: Defeat 3,000 enemies as Enforcer.
Kill the Scavenger.
Find the Artifact of Spirit.
Complete the Providence Trial "Meteor Showers".
Complete the Providence Trial "Lightning Strikes Twice". Alternatively: Complete 25 stages as Artificer.
Complete the Providence Trial "Routine Maintenance".
Get a gold rank on at least 5 Providence Trials.
Complete the Providence Trial "Colossal Lift". Alternatively: Complete 25 stages as Loader.
Pilot: Kill 30 enemies after launching them using Airstrike.
Find the Artifact of Tempus.
Complete the Providence Trial "Drowning in Research". Alternatively: Defeat 3,000 enemies as Engineer.
Complete the Providence Trial "Castle of Memories". Alternatively: Defeat 3,000 enemies as Bandit.
Complete the Providence Trial "Lone Wolf".
Complete the Providence Trial "In the Clouds". Alternatively: Collect 300 items as Artificer.
Complete the Providence Trial "Blades in the Wind". Alternatively: Collect 300 items as Huntress.
Complete the Providence Trial "Crash Landing". Alternatively: Defeat 3,000 enemies as Loader.
Bank 20,000 gold.
Find the robot janitor.
Collect 15 Monster Logs.
Purchase 40 drones total.
Huntress: Defeat the Ancient Wisp without taking damage.
Find the Artifact of Enigma.
Beat the game.
Survive 40 minutes.
Obtain 30 unique items in one playthrough.
Collect 4 Keycards.
Visit 10 unique stages.
Reach 650 health.
Complete the Providence Trial "Inner Demons".
Complete the Providence Trial "Scavenger Hunt". Alternatively: Collect 300 items as Enforcer.
Complete the Providence Trial "Specimen Sampling". Alternatively: Complete 25 stages as Enforcer.
Complete the Providence Trial "Caustic Climb". Alternatively: Collect 300 items as Acrid.
Find the bloated survivor.
Free the chained creature.
Survive a boss with less than 20% health.
Complete the Providence Trial "S.O.S.".
Complete the Providence Trial "Hot-Rope Hop".
Complete the Providence Trial "Piercing Space and Time". Alternatively: Defeat 3,000 enemies as Huntress.
Complete the Providence Trial "Brave Heart, Steady Hand". Alternatively: Complete 25 stages as Commando.
Complete the Providence Trial "Slide to the Finish!". Alternatively: Defeat 3,000 enemies as Commando.
Complete the Providence Trial "Endless Stand-Off". Alternatively: Complete 25 stages as Bandit.
Pass a shrine 4 times in a row.
Enforcer: Block 2000 damage total with your shield.
Huntress: Achieve 200% attack speed.
Kill the Magma Worm, Wandering Vagrant, and Colossus.
Commando: Dodge 7 lethal attacks.
Bandit: Kill a boss with 'Lights Out.'
Complete the Providence Trial "A Colossal Feat". Alternatively: Collect 300 items as Commando.
Beat the 3rd stage.
Unlock a survivor.
End a Teleporter timer with 0 enemies on the map.
Fail a shrine 3 times in a row.
Complete the 1st stage in under 5 minutes.
Defeat 20 Lemurians in one playthrough.
Bandit: Reset your cooldown 15 times consecutively.
Enforcer: Stay in Shield Mode for 5 minutes straight (in combat).
HAN-D: Kill 10 enemies simultaneously with FORCED_REASSEMBLY.
HAN-D: Beat the third stage without falling below 60% health.
Engineer: Detonate 15 Bounding Mines within 5 seconds.
Miner: Reach level 10 without getting hurt more than once.
Drown 20 Whorls.
Loader: Kill the Overloading Magma Worm.
Commando: Activate the 3rd teleporter without being hurt once.
HAN-D: Obtain a golden drone.
HAN-D: Kill 15 enemies at once using the Sawmerang.
Sniper: Beat the third stage without any players collecting items or equipment.
Sniper: Kill Providence while backflipping.
Huntress: Defeat 3 unique event bosses in one run.
Artificer: Multi-kill 15 enemies.
Engineer: Acquire a Beam Drone.
CHEF: Simultaneously kill 15 oiled enemies using SEAR/FLAMBE
Kill 8 Elder Lemurians without losing your Scorching status.
Find the Artifact of Kin.
Find the Artifact of Distortion.
Find the Artifact of Origin.
Find the 4 hidden Artifact Shards.
Find the Artifact of Cognation.
Complete the final Providence Trial as Artificer.
Complete the final Providence Trial as Drifter.
Complete the final Providence Trial as Acrid.
Complete the final Providence Trial as Huntress.
Complete the final Providence Trial as Commando.
Complete the final Providence Trial as Enforcer.
Complete the final Providence Trial as Bandit.
Complete the final Providence Trial as HAN-D.
Complete the final Providence Trial as Engineer.
Complete the final Providence Trial as Sniper.
Complete the final Providence Trial as Miner.
Complete the final Providence Trial as CHEF.
Complete the final Providence Trial as Mercenary.
Complete the final Providence Trial as Loader.
Complete the final Providence Trial as Pilot.