Comparison

Cosmic Forge vs Idle Nebula Drift

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

Head to head
About

Cosmic Forge

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Cosmic Forge is a deep offline idle game about turning a single iron vein into an interstellar mining empire. START SIMPLE Tap rocks. Upgrade your shaft. Automate with a baseline foreman. Watch a transporter shuttle ore from the mine to the refinery, then to the warehouse, where it sells for Coins. Every component โ€” shaft, transporter, refinery, warehouse โ€” has its own milestone multipliers every 10 levels, so progression keeps unlocking speed and capacity spikes. UNLOCK THE COSMOS Beyond Alpha Asteroid there are comet clusters, planets, moons, anomalies, and singularity zones. Each location type has its own production multipliers and warehouse sell rates โ€” anomaly-grade minerals pay poorly per second but richly per sale. HIRE MANAGERS Common managers enable auto-mining; bonus managers stack passive multipliers and trigger powerful active abilities (instant trips, production boosts, free upgrades). Assign them per mine. Some managers survive prestige. RESEARCH TREE 50+ research nodes across multiple branches โ€” economy, production, transport, offline efficiency, stock capacity, coin multipliers, prestige. Queue active research in parallel slots (expand via Galactic Research). Every tier you complete compounds. PRESTIGE FOREVER Perform a Stellar Reset when the cosmos is ready. Earn Stardust based on your total iron-equivalent across every resource. Spend Stardust on permanent upgrades that carry across runs. Eventually unlock Galactic Ascension โ€” a meta-prestige layer with its own research tree and Dark Matter currency. DAILY CHALLENGES Three challenges per day with streak rewards at 7 and 14 days. Missed days reset the streak but the game doesn't punish absence. OFFLINE EARNINGS Step away for up to a week โ€” Cosmic Forge continues mining at a tapered efficiency schedule and rolls a summary up on your return. Research that was in flight completes while you sleep. COMPLETELY OFFLINE No account required. No internet required. No ads. No in-app purchases. No subscriptions. No tracking. No analytics. No SDKs phoning home. GOD MODE (OPTIONAL) Want to test builds, skip a grind, or just play sandbox? God Mode is free for everyone โ€” a one-tap toggle in Settings (behind a "this may corrupt your save" warning, because it really can). First public release โ€” 0.19.0. Thanks for playing through 100+ pre-release builds with us.

About

Idle Nebula Drift

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Out past the Carina Veil, a little observatory drifts through the dark. It's yours. And as long as its gardens keep glowing, the light holds. Idle Nebula Drift is a cosmic idle game that moves with your real day. When the sun's up where you are, your world runs on solar light. When it sets, everything turns lunar, and the Void leans in a little closer. You're always growing something, and always holding something back. The cycle just changes the shape of the day. All of it keeps ticking while you're gone, so there's always something waiting when you come home. THE GARDEN Plant living starlight across your beds. Solar blooms while the sun is up, lumen blooms once it sets, each one growing into the fuel your wardens run on. The garden doesn't stop when you close the app, so come back to a harvest. THE WATCH Your wardens keep an endless patrol against the swarm pouring out of the Void. The fighting runs on its own, climbing sector after sector and banking what it earns, day and night, no babysitting. Sooner or later you hit a wall too big to push through. That's the whole point. FALL BACK, CLIMB HIGHER Let a run go, bank it into Stellar Ash, and start again stronger. Nothing is capped, so every reset makes the next climb faster and pushes the wall a little further out. It's the idle treadmill done right: progress you can feel, not a grind you resent. YOUR WARDENS Gather a crew with real character. The steady Sentinel who just won't fall. The Arcwright who hits like a collapsing star. The Void Scout out hunting crests. Rank them up on what your garden grows and build a line that plays the way you do. THE WEEKLY CLIMB Take your deepest run public. Every week the leaderboard resets and players push for the top. Pick a name, plant your flag, and see how your little patch of light stacks up against the rest of the galaxy. HOW IT PLAYS All of it is free. No sign-up, no wall at the door, you're in within seconds. Your save lives in the cloud so it stays safe, and if you ever want it on a new phone, just add an email. Ads only show up when you ask for one, for a reward, never in the middle of anything. If you want to move faster there are gems, passes, and warden packs, but they're yours to ignore. A quiet, endless climb that respects your time and your attention. Tend the light. Hold the line. Drift on.

Screenshots

Cosmic Forge4 screens
Idle Nebula Drift4 screens

Verdict

The call

The clearest difference is in-app purchases: Cosmic Forge at none against Idle Nebula Drift's 10. Cosmic Forge also leads on ads (none vs shown). Idle Nebula Drift's advantage is update cadence (every 3 days vs every 5 weeks) and iOS requirement (15.0 vs 17.0). On price and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Idle Nebula Drift sells 10 one-off in-app purchases. Cosmic Forge asks for nothing beyond the download.

UpkeepUpdate frequency

Cosmic Forge ships an update every 5 weeks, Idle Nebula Drift every 3 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard4 real differences ยท 2 level
Cosmic Forge versus Idle Nebula Drift: the parameters behind the verdict, then further details
ParameterCosmic ForgeIdle Nebula Drift
PriceFreeFree
Update frequencyEvery 5 weeksEvery 3 days โ€” better
AdsNo โ€” betterYes
In-app purchasesNo โ€” betterYes
DevicesiPhoneiPhone, iPod โ€” better
Requires iOS17.015.0 โ€” better
Further details โ€” not scored
Size6 MB46 MB
Age rating4+12+
DeveloperQUALITY CAT SP Z O OTiana Doran-Pelechaty

In-app purchases

None

Cosmic Forge

No in-app purchases

10 purchases

Idle Nebula Drift

One-time10
  • Day-1 Burst$1.99
  • Starter Pack$2.99
  • Conservatory Bed$3.99
Show 7 more
  • Wayfarer Bundle$12.99
  • Nebula VIP$12.99
  • Triple Drift (3x Drift)$12.99
  • Clear Skies (No Ads)$12.99
  • Voyager Bundle$24.99
  • Void Hunter Pack$69.99
  • Galactic Ascendant$129.99

Questions

Is Cosmic Forge free?
Cosmic Forge is free to download, with no in-app purchases.
Is Idle Nebula Drift free?
Idle Nebula Drift is free to download, with in-app purchases available.
Do Cosmic Forge or Idle Nebula Drift have ads?
Idle Nebula Drift shows ads; Cosmic Forge does not.
Which is updated more often, Cosmic Forge or Idle Nebula Drift?
Cosmic Forge ships an update every 5 weeks, and Idle Nebula Drift every 3 days. Most recently, Cosmic Forge was updated on October 25, 2026 and Idle Nebula Drift on October 24, 2026.

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