Comparison

ATOM RPG vs Siralim Ultimate

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

Siralim Ultimate

Embark on an epic monster-catching adventure in this deep RPG. Collect over 1200 unique creatures, fuse them to create powerful offspring, and explore procedurally generated dungeons. Customize your castle, engage in strategic battles, and craft powerful gear for thousands of hours of gameplay.

Highlights
  • 1200+ creatures to collect
  • Creature fusion system
  • Randomly generated dungeons
  • Castle customization
  • Strategic 6v6 battles
  • Artifact and Spell Gem crafting
  • Character specialization
Features
Read full description

Siralim Ultimate is a monster-catching, dungeon-crawling RPG with a ridiculous amount of depth. Summon over 1200 different creatures and travel through randomly generated dungeons to acquire resources, new creatures, and loot. If you’re looking to compare Siralim Ultimate to other games, you might think of it as Pokemon meets Diablo, or more accurately, Dragon Warrior Monsters meets Path of Exile. FEATURES • 1200+ creatures to collect • Fuse your creatures together - the offspring inherits its parents’ stats, traits, and even the way they look! • Randomly generated dungeons spanning 30 unique tilesets • Customize your castle with thousands of different decorations • Engage in strategic 6v6 battles • Craft Artifacts and Spell Gems for your creatures • Choose from one of 40 specializations for your character and earn perks that change the way your creatures fight in battle • Insane amount of post-story content that will keep you engaged for thousands of hours (yes, really!) • Supports gamepads! • Cross-platform cloud saving allows you to pick up where you left off with the desktop version of the game or simply another mobile device. • No ads, no IAPs, no timers, no gimmicks! You don't even need to be connected to the internet to play.

Screenshots

ATOM RPG4 screens
Siralim Ultimate4 screens

Verdict

The call

The clearest difference is in-app purchases: Siralim Ultimate at none against ATOM RPG's 1. Siralim Ultimate also leads on ads (none vs shown) and rating (4.7 vs 4.3). On price, review sentiment, ratings volume and chart position 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 Siralim Ultimate $9.99 up front. ATOM RPG sells 1 one-off in-app purchase. Siralim Ultimate asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Siralim Ultimate holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 222 and 240 respectively. Written reviews point the same way: 69% of ATOM RPG's written reviews are positive against 74% of Siralim Ultimate's.

UpkeepUpdate frequency

ATOM RPG ships an update every 5 weeks, Siralim Ultimate weekly. Both last shipped on October 24, 2026.

Scorecard5 real differences · 6 level
ATOM RPG versus Siralim Ultimate: the parameters behind the verdict, then further details
ParameterATOM RPGSiralim Ultimate
Price$9.99$9.99
Rating4.3 (222 ratings)4.7 (240 ratings) — better
Positive reviews68.9% of reviews73.7% of reviews — better
Number of ratings222240 — better
Update frequencyEvery 5 weeksWeekly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank#139#47 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.2 — better13.0
Further details — not scored
Size3.0 GB1.0 GB
Age rating17+12+
DeveloperATENT GAMES LTDThylacine Studios

Customer experience

ATOM RPG

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

Siralim Ultimate

All ratings240 ratings
Positive90.0%
Neutral3.3%
Negative6.7%
Written reviews114 reviews
Positive73.7%
Neutral7.9%
Negative18.4%

User reviews

ATOM RPG

From 222 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

Siralim Ultimate

From 240 App Store ratings

What we love

  • 🎮 Exceptional depth and complexity in gameplay mechanics
  • 💰 Complete game with zero microtransactions
  • 🔄 Virtually unlimited replayability and content
  • 🧩 Incredible customization options for teams and builds
  • ⏱️ Hundreds of hours of engaging content

Room to improve

  • 🎮 Virtual controller controls feel unnatural and imprecise
  • 🐛 Frequent crashes and stability issues on iOS
  • 📱 Touch controls block important UI text
  • ⌨️ Keyboard input detection problems
  • 🎨 Outdated UI design resembling early 2000s apps

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

Siralim Ultimate

Reported bugs

11 issues
  • Game freezes on opening screen preventing gameplay
  • Crashes when defeating False Gods and selecting anointments
  • Crashes when gaining large amounts of experience
  • Crashes when switching to different apps during battle
  • Crashes when opening chests after boss battles
Show 6 more
  • Save files disappearing without explanation
  • Keyboard key detection not registering hold inputs
  • Menu controls becoming invisible or unresponsive
  • Update installation failures (version 2.0.38 to 2.0.4)
  • Inconsistent joystick input detection on grid-based movement
  • Game crashes every 30 minutes approximately

Requested features

9 requests
  • Native touch controls with tap-to-move functionality
  • Controller support for external game controllers
  • Automatic cloud backup system
  • Portrait mode and one-handed play support
  • Individual button size adjustment (not grouped)
Show 4 more
  • French language localization
  • Floating joystick option
  • Wiki or in-game guide for mechanics
  • Cosmetic skin shop for monetization support

In-app purchases

1 purchases

ATOM RPG

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

Siralim Ultimate

No in-app purchases

Questions

Is ATOM RPG free?
ATOM RPG costs $9.99, and also offers in-app purchases.
Is Siralim Ultimate free?
Siralim Ultimate costs $9.99, with no in-app purchases.
Which has better reviews, ATOM RPG or Siralim Ultimate?
Siralim Ultimate is rated higher. ATOM RPG averages 4.3 out of 5 from 222 ratings, while Siralim Ultimate averages 4.7 from 240 ratings.
Do ATOM RPG or Siralim Ultimate have ads?
ATOM RPG shows ads; Siralim Ultimate does not.
Which is updated more often, ATOM RPG or Siralim Ultimate?
ATOM RPG ships an update every 5 weeks, and Siralim Ultimate weekly. Most recently, ATOM RPG was updated on October 24, 2026 and Siralim Ultimate on October 24, 2026.
Which is more popular, ATOM RPG or Siralim Ultimate?
ATOM RPG currently peaks at #139 in the App Store charts, and Siralim Ultimate at #47. Chart position reflects recent download velocity rather than total install base.

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