Comparison

Idle Rune Foundry vs Primordia Lab

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

Head to head
About

Idle Rune Foundry

Forge mystical runes by tapping and building an army of automated workers. Upgrade your forge, enchant items, and prestige for permanent power. Earn resources even while offline.

Highlights
  • Tap-to-forge gameplay with critical strikes
  • Automated rune production with various worker types
  • Deep upgrade and enchanting systems
  • Prestige system for permanent progression
  • Offline earnings and progression
  • Customizable forge skins
  • Offline play supported
Read full description

Become the ultimate Runesmith! Tap to forge mystical runes, build an army of enchanted auto-forgers, and grow your forge into a legendary powerhouse. FORGE YOUR DESTINY Start with nothing but a hammer and an anvil. Every tap crafts a rune, and every rune brings you closer to mastery. Upgrade your tap power, land critical strikes, and build explosive combos to supercharge your output. BUILD YOUR WORKFORCE Hire Apprentices, enchant Rune Chisels, fuel Mana Bellows, and command mighty Golem Workers. As your forge grows, unlock powerful machines like the Arcane Lathe, Elder Runesmith, Phoenix Furnace, and the mysterious Void Conduit — each producing runes automatically, even while you're away. ENCHANT & UPGRADE Convert your runes into powerful Enchanted Runes to unlock premium upgrades. Boost your tap power, increase production multipliers, and automate your enchanting process for maximum efficiency. PRESTIGE FOR POWER When you've pushed your forge to its limits, perform a Prestige reset to earn Ancient Essence — a permanent currency that makes every new run faster and more powerful. Unlock Ancient Upgrades that persist forever, giving you an edge that compounds with every prestige. EARN WHILE YOU'RE AWAY Your forge never sleeps! Come back to collect runes earned by your workers while you were gone. Upgrade your offline earnings to collect even more. CUSTOMIZE YOUR FORGE Express your style with unique forge skins — from the Classic Forge to the ethereal Celestial Forge. Collect them all and make your forge truly yours. KEY FEATURES - Satisfying tap-to-forge gameplay with critical strikes and combos - 8 unique auto-forger types to unlock and upgrade - Deep upgrade system across Tap, Forge, and Enchanting categories - Prestige system with permanent progression - Offline earnings that keep your forge running 24/7 - Beautiful forge cosmetic skins - Speed boosts and auto-tap for accelerated gameplay - Dark, atmospheric fantasy aesthetic - No internet required to play ACCESSIBILITY - VoiceOver support across every game screen - Dynamic Type — game text scales with your iOS text size preference - Reduce Motion honored — sparks, glows, and ceremonial animations calm down when enabled - Sound, haptic, and Reduce Motion toggles in Settings - Color-blind friendly — affordability, selection, and castle piece state are shown by icon and shape, never by color alone - 44pt minimum touch targets on every button and tab Download Idle Rune Foundry and start your journey from humble apprentice to legendary Runesmith!

About

Primordia Lab

Experiment with physics in a simulated world, starting with atoms and building up to complex civilizations. Discover new elements, build real circuits, and cause chaos with powerful tools. Learn about science as you play.

Highlights
  • Falling-sand physics simulation
  • Discovery-driven progression
  • Idle economy
  • Build real circuits
  • Cause absolute havoc
  • Learn real science
Features
Read full description

Primordia Lab is a physics sandbox where you start with a handful of atoms and end up somewhere no one expects. Paint elements into a living, simulated world. Water flows, fire spreads, metals melt, storms rain, and every pixel obeys the same rules. Mix substances to discover new ones, log your findings in the journal, and spend your earnings on new tools for the lab. WHAT MAKES IT DIFFERENT - A real falling-sand simulation: heat, pressure, electricity, magnetism, and gravity all interact - Discovery-driven progression: combine what you have to reveal what comes next - An idle economy that keeps working while you are away - Research programs, blueprints, and a technology tree that unlock deeper systems - Ollie, the lab's assistant, shows you around and tells the lab's story - One shared in-game planet: every scientist's work adds up to restore it, stage by stage - A long arc of ages that starts with chemistry and goes much further than you think BUILD REAL CIRCUITS Wire batteries, switches, motors, and lamps into working DC circuits. Voltage, current, and resistance behave like the real thing, so the electrical bench is a little physics lesson in disguise. CAUSE ABSOLUTE HAVOC Drop a meteor. Light a wildfire. Place a black hole and watch it eat your whole world. LEARN AS YOU PLAY Long-press anything to read its real history and science in the Info panel. Primordia Lab is free to play. Optional purchases support development, and every ad is opt-in.

Screenshots

Idle Rune Foundry4 screens
Primordia Lab4 screens

Verdict

The call

The clearest difference is update cadence: Primordia Lab at daily against Idle Rune Foundry's every 2 weeks. Primordia Lab also leads on ratings volume (10 vs 1) and device support. Idle Rune Foundry's advantage is monetization model (free vs free with in-app purchases). On price, rating, in-app purchases and iOS requirement 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

Both are free to download. Idle Rune Foundry sells 5 one-off in-app purchases and Primordia Lab sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Idle Rune Foundry against 5.0 for Primordia Lab. That said, the two scores are not equally well evidenced: Primordia Lab has 10 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Idle Rune Foundry ships an update every 2 weeks, Primordia Lab daily. Both last shipped on October 31, 2026.

Scorecard4 real differences · 6 level
Idle Rune Foundry versus Primordia Lab: the parameters behind the verdict, then further details
ParameterIdle Rune FoundryPrimordia Lab
PriceFreeFree
Rating5.0 (1 ratings)5.0 (10 ratings)
Positive reviews—100.0% of reviews
Number of ratings110 — better
Update frequencyEvery 2 weeksDaily — better
Ads—Yes
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
Devices—iPhone, iPad — better
Requires iOS17.017.0
Further details — not scored
Size69 MB106 MB
Age rating4+9+
DeveloperMichael EakinsUnified Health Systems Consulting LLC

In-app purchases

5 purchases

Idle Rune Foundry

One-time5
  • Pouch of Gems$0.99
  • Remove Ads$2.99
  • Chest of Gems$3.99
Show 2 more
  • Legendary Hoard$6.99
  • Vault of Gems$14.99
8 purchases

Primordia Lab

One-time8
  • 20 Citations$0.99
  • Golden Atom Avatar$0.99
  • Singularity Avatar$1.99
Show 5 more
  • Founder Avatar$2.99
  • Second Researcher$3.99
  • 150 Citations$4.99
  • Grant Funding$4.99
  • 550 Citations$9.99

Questions

Is Idle Rune Foundry free?
Idle Rune Foundry is free to download, with in-app purchases available.
Is Primordia Lab free?
Primordia Lab is free to download, with in-app purchases available.
Which has better reviews, Idle Rune Foundry or Primordia Lab?
Idle Rune Foundry and Primordia Lab are both rated 5.0 out of 5 on the App Store, from 1 and 10 ratings respectively.
Which is updated more often, Idle Rune Foundry or Primordia Lab?
Idle Rune Foundry ships an update every 2 weeks, and Primordia Lab daily. Most recently, Idle Rune Foundry was updated on October 31, 2026 and Primordia Lab on October 31, 2026.

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