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Idle Atomic

Idle Atomic

Idle Atomic is an Incremental Idle RPG in a post-apocalyptic world. Level up skills, refine your salvaged materials and hunt mutant creatures to survive!

Released Jul 15, 2021 Developer Checkbox Entertainment Publisher Iron Horse Games Platforms Windows Post-apocalypticIdlerSimulationPixel GraphicsCrafting
View on Steam ↗ Free (US · as of 2026-09-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-26.

61.6%positive463 reviews
Recommended · 0 found this helpful

“A fun game for people who prefer more active idle games.”

— a player, Steam review · 4 hrs played
Recommended · 0 found this helpful

“Have hundreds of hours on this game on mobile. Kinda sad its basically abandoned. Their discord is pretty dead too after some of their worse fans drove off a bunch of people being horrible. Anyway its a pretty fun idle game with lots of grind and just enough interaction.”

— a player, Steam review · 1 hrs played
Not recommended · 0 found this helpful

“Yes its an "Idler" but the extent of it is very misleading. This game requires a TON of manual interaction and attention in order to progress (Especially if you want 100%). Idling will work for a very few small things (If Task/Mission is do kill, catch creatures, cast spells or…”

— a player, Steam review · 2,722 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. History through 2026-08 via SteamCharts; self-collected from the Steam API since Aug 2026.

421all-time peak
0 250 500 2022 2023 2024 2025 2026 321 avg · Jul 2021

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.

7achievements
7.0%median completion
2.9%rarest: Absolute madlad
38.3% of players 22.3% of players 8.7% of players 7.0% of players 7.0% of players 5.2% of players 2.9% of players 38.3% 0% most earned rarest
Almost everyone has
38.3%Enhance! — Prestige Strength Once
22.3%First Of Many — Beat Challenge 01
8.7%Best Topping — Hidden achievement
Rarest badges of honor
2.9%Absolute madlad — Achieve 100% Completion
5.2%Misery Loves Company — Start The First Extreme Challenge
7.0%This is the Way — Start Your First Bounty

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Jan 21, 2022
v1.05.01 - Menu navigation rework

Greetings Wastelanders! ☣ Menu navigation has been reworked to be clearer and easier to use Artifacts have been added to the game completion stat page Loot Drone has had its functionality improved Chr

Dec 21, 2021
Christmas Event + Biomagic Prestige Expansion

Christmas Event + Biomagic Prestige Expansion! (Hopefully actually working this time) Participate in the Christmas Event and earn a brand new cosmetic suit and lots of goodies! Biomagic Prestige 9 and

Dec 21, 2021
Reverting update

I broke stuff, reverting the christmas update for now.. whoops

Dec 21, 2021
Christmas Event + Biomagic Prestige Expansion!

Christmas Event + Biomagic Prestige Expansion! Participate in the Christmas Event and earn a brand new cosmetic suit and lots of goodies! Biomagic Prestige 9 and 10 have been added, introducing new sp

Aug 26, 2021
Expanded soundtrack + fixes!

The soundtrack has been expanded to be 3x the length, re-enable your music settings and give it a listen! Hitbox of the crosshairs have been increased Fixed the save wipe not functioning correctly, ad

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-26.

GenresRPG, Simulation, Free To Play
Player tagsPost-apocalyptic · Idler · Simulation · Pixel Graphics · Crafting · Auto Battler · Free to Play · Resource Management · Incremental · RPG · Strategy · 2D (Steam store community voting)
FeaturesSingle-player · Steam Achievements · Family Sharing
LanguagesEnglish
Achievements7
Minimum system requirements (PC)

Minimum: OS *: Microsoft® Windows 7 Processor: 2.33GHz or faster x86-compatible processor, or Intel Atom™ 1.6GHz or faster processor for netbook class devices Memory: 128 MB RAM Graphics: Integrated Storage: 64 MB available space