Into The Radius 2 achievements are not just simple checkboxes. A lot of them unlock through specific actions, repeat systems, or co-op requirements that are easy to miss if you just play straight through the story. This guide breaks down exactly how each one is earned so nothing gets left behind.

How To Unlock All Achievements In Into The Radius 2

You unlock all achievements in Into The Radius 2 by completing every story mission solo and in co-op, triggering hidden interaction achievements, hitting combat and survival milestones, collecting Lauri’s figures, making the Explorer 73 choice, and finishing the game in IronMan mode.

The big thing here is duplication. Most of the story has to be done twice, once solo and once in co-op, and the hidden achievements require specific actions instead of just playing normally.

Story Achievements And How They Unlock

These are straightforward and tied directly to mission completion.

Trained And Ready
Unlocks by finishing story mission 1.
Finding The First Artifact
Unlocks by finishing story mission 2.
Into The In-Between
Unlocks by finishing story mission 3.
Ringing The Bell
Unlocks by finishing story mission 4.
Unexpected Vacation
Unlocks by finishing story mission 5.
Diving Deep
Unlocks by finishing story mission 6.
Heading To Town
Unlocks by finishing story mission 7.
Opening The Door
Unlocks by finishing story mission 8.
Sacrificing A Little Friend
Unlocks by finishing story mission 9.
Back To School
Unlocks by finishing story mission 10.

Nothing special required here. Just complete the campaign normally.

Co-op Story Achievements And How They Unlock

These require replaying missions in co-op.

Finding The First Artifact Together
Complete mission 2 in co-op.
Into The In-Between Together
Complete mission 3 in co-op.
Ringing The Bell Together
Complete mission 4 in co-op.
Unexpected Vacation Together
Complete mission 5 in co-op.
Diving Deep Together
Complete mission 6 in co-op.
Heading To Town Together
Complete mission 7 in co-op.
Opening The Door Together
Complete mission 8 in co-op.
Sacrificing A Little Friend Together
Complete mission 9 in co-op.
Back To School Together
Complete mission 10 in co-op.

You cannot combine these into one unlock. Each mission must be completed again while in a co-op session.

Co-op Setup Achievements

Teamwork
Unlocks immediately when you start a co-op session.
Shoulder To Shoulder
Unlocks by completing any mission in co-op.

These will unlock naturally once co-op runs begin.

Explorer 73 Choice Achievements

Path Chosen
Unlocks by making the Explorer 73 decision in solo play.
Path Chosen Together
Unlocks by making the same decision during a co-op session.

Both must be completed separately for full completion.

Weapon And Combat Achievements

My New Toy
Unlocks when you purchase your first weapon from the shop.
Experimenter
Unlocks by equipping at least 10 attachments onto a single weapon at the same time.
Bull’s-eye!
Unlocks by killing an enemy from at least 150 meters away. Best done with a scoped weapon and clear line of sight.
Eliminator
Unlocks after killing 300 enemies total. This builds naturally over time.
Friendly Fire
Unlocks by damaging or killing a co-op partner during a co-op session.

Hidden Interaction Achievements

Welcome Gift
Unlocks during an early scripted moment in the game tied to story progression.
Artist
Unlocks after using paint on items 50 times.
Fidget
Unlocks by repeatedly interacting with objects or systems that display warning-style feedback.
Changing Faces
Unlocks by changing or interacting with character appearance elements.
Gluttony
Unlocks by consuming food totaling 3,000,000 in-game calories.

These are easy to miss if you do not actively engage with side systems like painting or food.

Lauri’s Figures Collectibles

The Guide’s Reflections Chapter 1
Unlocks by finding and interacting with all Lauri’s figures in the first set.
The Guide’s Reflections Chapter 2
Unlocks by finding and interacting with all Lauri’s figures in the second set.

These require full exploration. Missing even one figure will block the achievement.

IronMan Completion Achievement

Immortal
Unlocks by completing the entire game in IronMan mode.

This is the hardest achievement. IronMan requires a full run without major mistakes, so it should be saved until the game is fully understood.

Quick 100% Route

Complete the full story once
Replay missions 2 through 10 in co-op
Start and complete a co-op session
Buy a weapon and build a 10 attachment setup
Work toward 300 kills during normal play
Set up a long-range 150 meter kill
Use paint consistently until 50 uses
Keep eating food throughout runs
Collect all Lauri’s figures during exploration
Complete Explorer 73 choice solo and co-op
Finish an IronMan run last

Final Blurb

Into The Radius 2 achievements are built around full system use, not just finishing the story. The cleanest path keeps co-op progress, combat totals, collectibles, and interaction systems moving at the same time instead of leaving them for cleanup. Once the campaign and co-op runs are done, most achievements should already be close, leaving IronMan and a few grind-heavy unlocks as the final stretch.

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