Full list of all 118 Risk of Rain 2 achievements. It takes around 200 hours to unlock all of the achievements in the base game on Windows.
The base game contains 103 achievements, and there are 2 DLC packs containing 15 achievements.
As Mercenary, complete a Prismatic Trial without falling below 100% health.
As Acrid, beat the game or obliterate on Monsoon.
As Acrid, land the final blow on a Scavenger.
As Acrid, inflict Poison 1000 total times.
As Acrid, land the killing blow on 50 total enemies that have 1 hit point left.
As Loader, beat the game or obliterate on Monsoon.
As Loader, land a Charged Gauntlet hit at 300mph or higher.
As Loader, reach and proceed through the Celestial Portal in 25 minutes or less.
As REX, beat the game or obliterate on Monsoon.
As Captain, repair and recruit a TC-280 Prototype.
As REX, kill a Clay Dunestrider on Abandoned Aqueduct by throwing it into a pit.
As REX, complete an entire teleporter event while under 50% health.
As Mercenary, beat the game or obliterate on Monsoon.
As Captain, beat the game or obliterate on Monsoon.
As Captain, visit 10 different environments in a single run.
Complete the Trial of Enigma.
As MUL-T, beat the game or obliterate on Monsoon.
Complete the Trial of Vengeance.
As MUL-T, land the killing blow on an Imp Overlord with the Preon Accumulator.
As Artificer, beat the game or obliterate on Monsoon.
Complete the Trial of Evolution.
As Engineer, beat the game or obliterate on Monsoon.
Complete the Trial of Metamorphosis.
Complete the Trial of Spite.
Complete the Trial of Chaos.
As Huntress, start and finish either Rallypoint Delta or Scorched Acres without falling below 100% health.
As Artificer, fully defeat the teleporter boss in a one-second burst of damage.
Kill 20 Hermit Crabs by chasing them off the edge of the map.
Complete the Trial of Glass.
As Engineer, defeat the teleporter boss in less than 5 seconds after it spawns.
As Artificer, perform a multikill of 20 enemies.
Complete the Trial of Kin.
Complete the Trial of Swarms.
As Artificer, kill 15 enemies before touching the ground.
As Engineer, recruit 12 minions at one time.
As Engineer, finish charging the teleporter with zero monsters remaining on the stage.
Charge the Teleporter with less than 10% health.
As Huntress, beat the game or obliterate on Monsoon.
Discover and activate 8 unique Newt Altars.
Complete the Trial of Soul.
Complete the Trial of Sacrifice.
Beat the game on Monsoon difficulty.
Die 20 times.
Defeat an Elite boss on Monsoon difficulty.
Carry 5 Lunar items in a single run.
Defeat the unique guardian of Gilded Coast without any beacons deactivating.
Open the Timed Security Chest on Rallypoint Delta.
Complete a Prismatic Trial.
Die three times while burning.
Duplicate the same item 7 times in a row with a 3D Printer.
As Commando, beat the game or obliterate on Monsoon.
Repair the broken robot with an Escape Pod's Fuel Array.
As MUL-T, defeat two Beetle Queens without leaving the teleporter zone.
Without healing, reach and complete the 3rd Teleporter event.
As Commando, clear 20 stages in a single run without picking up any Lunar items.
Complete 20 stages in a single run.
Kill 15 enemies simultaneously.
Complete the Trial of Dissonance.
As Commando, land the killing blow on an Overloading Worm.
Complete the Trial of Death.
Defeat 3000 enemies.
Find the Altar to N'kuhana.
Die 5 times.
Defeat 500 elite monsters.
Destroy 20 flying rocks in Sky Meadow.
Repair 30 drones or turrets.
In 4 consecutive stages don’t leave the teleporter radius until it is fully charged.
As Huntress, collect and carry 12 Crowbars at once.
As Huntress, land a killing blow with every possible hit of a single glaive.
Complete the first Teleporter event 5 times.
Complete 30 stages.
Complete the Trial of Command.
Fail the Shrine of Chance 3 times in a row.
Reach +300% movespeed (includes sprinting).
Complete the Trial of Frailty.
Free the survivor suspended in time.
As Commando, fully charge the first-stage teleporter before the timer hits 5 minutes.
Complete 3 Combat Shrines in a single stage.
Defeat the Teleporter boss under 15 seconds.
Beat the game.
As Mercenary, don't touch the ground for 30 seconds.
Stabilize the Cell in the Void Fields.
Reach +200% attack speed.
Pick up 5 different types of Equipment.
Obliterate yourself at the Obelisk..
Collect 10 Monster or Environment Logs.
Discover and enter three unique portals.
Discover the hidden chamber in the Abandoned Aqueduct.
Fully charge a Teleporter without getting hit.
Kill 15 boss monsters in a single run.
Deal 5000 damage in one shot.
Loop back to the first stage.
Complete the Trial of Honor.
Fully upgrade a Shrine of the Woods.
Collect $30,480 total gold.
Defeat the Teleporter bosses after activating 2 Shrines of the Mountain.
Activate 6 turrets in a single run.
Defeat the unique guardian of Siren's Call.
Reach and complete the 3rd Teleporter event without dying.
Stay alive for 30 consecutive minutes.
Discover 10 unique white items.
Complete a Teleporter event.
Defeat an Elite-type monster.
As Loader, kill three other Loaders in the Bulwark's Ambry.
As REX, heal for 1000 health at once.
As Captain, kill the final boss using a Supply Beacon
As MUL-T, clear the Void Fields on Stage 7 or later.
As Bandit, beat the game or obliterate on Monsoon.
As Bandit, kill the final boss with 'Lights Out'.
As Bandit, kill a monster with 20 stacks of Hemorrhage.
As Bandit, successfully use 'Lights Out' to reset your cooldowns 15 times in a row.
As Mercenary, use 20 abilities in 10 seconds.
As 「V??oid Fiend』, beat the game or obliterate on Monsoon.
As Railgunner, deal 1,000,000 damage in one shot.
As Railgunner, beat the game or obliterate on Monsoon.
Escape the Planetarium or complete wave 50 in Simulacrum.
As Railgunner, get 3 kills with a single Supercharge shot while airborne.
As Railgunner, fire 30 consecutive sniper shots without missing a Weak Point.