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