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