Comparison

ATOM RPG vs Cataclysm

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

ATOM RPG

Explore a post-apocalyptic Soviet Wasteland, creating your own hero. Investigate bunkers, battle mutants, and uncover conspiracies in this offline RPG. Features deep character creation, turn-based combat, and nonlinear gameplay with multiple quest solutions.

Highlights
  • Character creation tool
  • Offline single-player RPG
  • Dozens of skills
  • Turn-based combat
  • Nonlinear gameplay
  • Multiple quest solutions
  • Deep dialogues
Features
Read full description

In 1986 the world war between the Soviet Union and the Western Bloc ended in mutual nuclear bombings. Both superpowers went down in flames. The impact of the fallout almost ended civilization as we know it. You are one of the survivors of the apocalypse. Your mission - to explore the wild and wondrous postnuclear world of the Soviet Wasteland. To earn your place under the sun in this new age. To investigate retro style bunkers, descend into a stalker filled metro, fight terrible mutants and solve a shadowy conspiracy, aimed at destroying all that is left of life on Earth. ATOM RPG is: - A powerful character creation tool, aimed at making the wasteland hero you want to portray; - A balanced offline single player roleplaying system. Each stat combination provides a unique cRPG experience, unique dialogues, and new ways to solve some quests; - Dozens of skills, from lockpicking to gambling; - Many hours of gameplay on all sorts of locations. Meet the other survivors in a brave new settlement, built from the remains of the old world. Venture into the wilds, where mutants and bandits lurk. Work out the secrets of an old military bunker. Or simply lose yourself, fishing at a scenic pond; - Turn-based combat, inspired by classic RPG’s of the nineties. Find your own strategy and develop the tactics needed to win; - Random encounters with the dwellers of the Soviet Wasteland - both friendly and dangerous. Sometimes all at the same time; - Many deep, multiple-choice dialogues that feel like real conversations with the unique NPCs of the game; - Nonlinear gameplay! This edition of the game features dozens of quests, most with alternative solutions. Play the game like you want to! Recommended: iPhone 15, 14, 13, 12, 11, SE, 6S, 6S Plus, 7, 7 Plus, 8, 8 Plus, X, XS, XR; iPad Mini 6, 5, 4; iPad Air 3+, 2; iPad Pro Technical Support: You can contact the developers at support@atomrpg.com

About

Cataclysm

Experience a turn-based survival RPG in a procedurally generated post-apocalyptic world. Scavenge for resources, craft items, and battle a variety of dangerous creatures and hostile survivors to stay alive.

Highlights
  • Turn-based survival gameplay
  • Procedurally generated world
  • Scavenging for resources
  • Crafting and item management
  • Combat against monsters and humans
  • Vehicle exploration
Features
Read full description

Cataclysm: Dark Days Ahead is a turn-based survival game set in a post-apocalyptic world. Struggle to survive in a harsh, persistent, procedurally generated world. Scavenge the remnants of a dead civilization for food, equipment, or, if you are lucky, a vehicle with a full tank of gas to get you the hell out of Dodge. Fight to defeat or escape from a wide variety of powerful monstrosities, from zombies to giant insects to killer robots and things far stranger and deadlier, and against the others like yourself, that want what you have… The previous, 0.E version, is here: https://apps.apple.com/app/cataclysm-roguelike-rpg-0-e/id1547835881

Screenshots

ATOM RPG4 screens
Cataclysm4 screens

Verdict

The call

The clearest difference is in-app purchases: Cataclysm at none against ATOM RPG's 1. Cataclysm also leads on ads (none vs shown) and review sentiment (77% vs 69%). ATOM RPG's advantage is ratings volume (223 vs 56). On price, rating, update cadence and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

ATOM RPG costs $9.99 and Cataclysm $9.99 up front. ATOM RPG sells 1 one-off in-app purchase. Cataclysm asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.3 for ATOM RPG against 4.3 for Cataclysm. Both are backed by a comparable volume of ratings — 223 and 56 respectively. Written reviews are what separate them: 69% of ATOM RPG's written reviews are positive against 77% of Cataclysm's.

UpkeepUpdate frequency

ATOM RPG ships an update every 5 weeks, Cataclysm every 6 weeks. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

Scorecard6 real differences · 4 level
ATOM RPG versus Cataclysm: the parameters behind the verdict, then further details
ParameterATOM RPGCataclysm
Price$9.99$9.99
Rating4.3 (223 ratings)4.3 (56 ratings) — better
Positive reviews68.9% of reviews77.0% of reviews — better
Number of ratings223 — better56
Update frequencyEvery 5 weeks — betterEvery 6 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.210.0 — better
Further details — not scored
Size3.0 GB169 MB
Age rating17+17+
DeveloperATENT GAMES LTDYury Apollov

Customer experience

ATOM RPG

All ratings221 ratings
Positive79.2%
Neutral5.4%
Negative15.4%
Written reviews312 reviews
Positive68.9%
Neutral6.4%
Negative24.7%

Cataclysm

All ratings56 ratings
Positive78.6%
Neutral12.5%
Negative8.9%
Written reviews61 reviews
Positive77.0%
Neutral16.4%
Negative6.6%

User reviews

ATOM RPG

From 223 App Store ratings

What we love

  • 🚀 Great when you give it a chance
  • 🚀 Huge game with lots of content
  • 🚀 Replayable with multiple paths
  • 👍 Scratches the Fallout itch
  • 👍 Immersive atmosphere and writing

Room to improve

  • 🐛 Controls constantly break
  • 🐛 Crashes and performance issues
  • 🐛 Unbalanced gameplay and difficulty
  • 🐛 Text and UI issues on mobile
  • 🐛 Glitches and bugs

Cataclysm

From 56 App Store ratings

What we love

  • 👍 Great game complexity
  • 👍 Fantastic port quality
  • 👍 Good for on-the-go play
  • 👍 Fair pricing for support
  • 👍 Appreciated for being available

Room to improve

  • outdated Port version
  • 🐛 UI issues with ASCII
  • 🐛 Controls can be difficult
  • 🐛 UI takes up screen space
  • 🐛 Button resizing needed

Bugs and requests

ATOM RPG

Reported bugs

4 issues
  • Controls breaking
  • Frequent crashes
  • Text/UI issues
  • Glitches and bugs

Requested features

4 requests
  • Add controller support
  • Improve UI scaling and readability
  • Add more content and updates
  • Fix bugs and stability issues

Cataclysm

Reported bugs

21 issues
  • UI goes wonky with ASCII
  • Zoom in/out function not working
  • Walk button too close to corner
  • Game breaks after a while
  • Menu frozen
Show 16 more
  • Nothing displayed after re-opening
  • Major bug locks you into dialog screen
  • Graphical Overmap mod not working
  • Touchpad controls not responding
  • Pressing keys results in double input
  • Displays black screen
  • Crashes extremely often
  • Resolution resets when keyboard is swiped up
  • Rarely loads properly, black screen with overlay
  • Crashing when driving
  • Keyboard swapping is cumbersome
  • Game sound doesn't work
  • Terminal width and height settings reset on app restart
  • Game crashes very often when traveling
  • Enter key is small
  • Action menu obstructs view

Requested features

19 requests
  • Update to latest PC version
  • Deploy version 0.H
  • Swipe interface on iOS
  • Update to newest stable version
  • Release O.G stable release
Show 14 more
  • Add 0.G version
  • Customizable UI
  • Change fonts on iOS
  • Add page up/down buttons
  • Always visible Esc and Tab keys
  • Toggle number/arrow keypad
  • Create custom buttons for functions
  • Add modding capabilities
  • Allow mod installation
  • Fix sound issues
  • Transfer settings and keybindings on update
  • Fix terminal width/height reset
  • Customizable UI interface
  • Add mods

In-app purchases

1 purchases

ATOM RPG

One-time1
  • ATOM RPG - Supporter Pack$2.99
None

Cataclysm

No in-app purchases

Questions

Is ATOM RPG free?
ATOM RPG costs $9.99, and also offers in-app purchases.
Is Cataclysm free?
Cataclysm costs $9.99, with no in-app purchases.
Which has better reviews, ATOM RPG or Cataclysm?
Cataclysm is rated higher. ATOM RPG averages 4.3 out of 5 from 223 ratings, while Cataclysm averages 4.3 from 56 ratings.
Do ATOM RPG or Cataclysm have ads?
ATOM RPG shows ads; Cataclysm does not.
Which is updated more often, ATOM RPG or Cataclysm?
ATOM RPG ships an update every 5 weeks, and Cataclysm every 6 weeks. Most recently, ATOM RPG was updated on October 29, 2026 and Cataclysm on October 24, 2026.

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