Comparison

Assembly Line 2 vs Unnamed Space Idle

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

Head to head
About

Assembly Line 2

Build and manage a factory to craft and sell resources. Optimize your assembly line with various machines and upgrades to maximize profits, even while offline. Discover new resources and make strategic decisions to grow your industrial empire.

Highlights
  • Build and optimize 21 different machines
  • Unlock tons of upgrades
  • Craft around 50 unique resources
  • Offline progress generation
  • Informative machine and resource data
  • Progress backup
Features
Read full description

Welcome to Assembly Line 2, the sequel to the factory-building and managing game. Assembly Line 2 combines elements from idle and tycoon games. Make the most money by using different types of machines to build an assembly line to craft resources and sell them. Unlock upgrades to make it more efficient and expand your factory. The goal is simple, build resources and sell them. Starting with a few machines and very basic resources, and using them with more advanced machines to craft and create more complex resources. Your factory will continue generating money even when you are offline. When you return to the game you will have piles of money waiting for you, but don't spend it all in one place! While Assembly Line 2 is an idle game, because you make the layout of your factory, it is up to you to optimize it to make the most money possible. Don't worry if you get lost with all those machines to build, the game offers an information menu so you can see what each machine does at any time. It also offers information on each resource price, so you can make decisions on what to craft. You can also see stats on the amount you are producing. Features: - 21 different machines to build and optimize the best factory. - Tons of upgrades to increase productivity. - Around 50 different unique resources to craft. - Multi-language support. - Backup your progress. - No internet required.

About

Unnamed Space Idle

Engage in an endless sci-fi idle game battling alien waves. Customize your ship with unlockable weapons and defenses, and strategically upgrade various systems to increase your power. Make impactful decisions to counter enemy types and progress through a well-paced unfolding experience.

Highlights
  • Destroy alien waves
  • Customize ship with weapons/defenses
  • Unlockable systems and upgrades
  • Strategic decision-making
  • Progression and prestige systems
  • Craft and improve modules
Features
Read full description

No ads! Destroy unending waves of alien ships in this long form, unfolding, sci-fi idler. Unnamed Space Idle is an unfolding sci-fi idle game that plunges you into a relentless battle against an alien menace that has decimated humanity. Voted r/incremental_games "Best F2P game" 2024 & 2025. Customize your ship with an array of progressively unlocked weapons and defenses, strategically tailored to counter specific enemy types. With a plethora of unfolding systems and abundant options, you'll face crucial choices as you steadily increase you power through progression and prestige. A Myriad of Different Systems Discover over 10 distinct systems, each offering unique mechanics that evolve and expand over time. Core - Upgrade your Weapon, Defense and Utility cores with salvage gathered from enemies. Compute - Improve your combat stats over time in traditional Idle Game fashion Synth - Craft and improve modules and recipes to increase your power in various ways. Void Device - Slot in void shards dropped by enemies for different combinations of upgrades. Prestige - Unlock different ships, weapons, defenses and utilities. Reactor - Feed void matter into your reactor to power various system boosts. Research - Harness the research data obtained from different sectors to unlock various upgrades. And More... Impactful, Understandable Decisions Choose wisely when equipping your ship with weapons and defenses, selecting power-altering modules, or determining the optimal combination of shards to use. The distinction between optimal and sub-optimal choices can significantly impact your progress. But while there are a lot of decisions to be made, they are all plainly understandable so that the optimum, or at least very near optimum decision making is within your grasp! Consistent Progress and Unlocks Well paced progression combined with the amount of different systems, upgrades and enemies, means something new is frequently just around the corner.

Screenshots

Assembly Line 24 screens
Unnamed Space Idle4 screens

Verdict

The call

The clearest difference is in-app purchases: Assembly Line 2 at none against Unnamed Space Idle's 15. Assembly Line 2 also leads on ratings volume (1.6K vs 241). Unnamed Space Idle's advantage is ads (none vs shown) and update cadence (every 2 days vs weekly). On price, rating, review sentiment 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

Both are free to download. Unnamed Space Idle sells 15 one-off in-app purchases. Assembly Line 2 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Assembly Line 2 holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Assembly Line 2 has 1.6K ratings behind it against 241, so its average is the more settled of the two. Written reviews point the same way: 80% of Assembly Line 2's written reviews are positive against 77% of Unnamed Space Idle's.

UpkeepUpdate frequency

Assembly Line 2 ships an update weekly, Unnamed Space Idle every 2 days. Both last shipped on October 27, 2026.

Scorecard5 real differences · 5 level
Assembly Line 2 versus Unnamed Space Idle: the parameters behind the verdict, then further details
ParameterAssembly Line 2Unnamed Space Idle
PriceFreeFree
Rating4.8 (1.6K ratings) — better4.6 (241 ratings)
Positive reviews79.6% of reviews — better77.2% of reviews
Number of ratings1.6K — better241
Update frequencyWeeklyEvery 2 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15
Further details — not scored
Size138 MB126 MB
Age rating4+9+
DeveloperJoao ReisJDOG CORP

Customer experience

Assembly Line 2

All ratings1,479 ratings
Positive94.9%
Neutral3.3%
Negative1.8%
Written reviews225 reviews
Positive79.6%
Neutral12.0%
Negative8.4%

Unnamed Space Idle

All ratings203 ratings
Positive86.7%
Neutral2.0%
Negative11.3%
Written reviews101 reviews
Positive77.2%
Neutral5.9%
Negative16.8%

User reviews

Assembly Line 2

From 1.6K App Store ratings

What we love

  • 🚀 Fun gameplay
  • 👍 Optional ads
  • 🎨 Good visuals
  • 🕹️ Engaging factory management

Room to improve

  • 🐛 Clunky controls
  • 🔋 Battery drain issues
  • 🧭 Unclear progression
  • 🧠 Tedious menu navigation

Unnamed Space Idle

From 241 App Store ratings

What we love

  • 👍 Addictive gameplay
  • 👍 Deep and complex mechanics
  • 👍 Constantly evolving game
  • 👍 Frequent updates
  • 👍 Free-to-play friendly

Room to improve

  • 📱 Tiny UI elements
  • 📱 Small font size
  • 📱 Unreadable text on mobile
  • 📱 UI not optimized for mobile
  • 📱 Difficult to interact with buttons

Bugs and requests

Assembly Line 2

Reported bugs

3 issues
  • Inconsistent offline earnings
  • Crafters and splitters stop working
  • Crashes on launch

Requested features

4 requests
  • Copy/paste assembly lines
  • Rotate/flip multiple machines
  • Pause production
  • Better performance optimization

Unnamed Space Idle

Reported bugs

15 issues
  • UI is too small on mobile devices
  • Font size is too small, making text unreadable
  • Game crashes during fleet auto battles
  • Cannot open on iPadOS 14.8.1
  • Game freezes when playing on mobile network
Show 10 more
  • AI Smart Crafting not working
  • Module queue automation doesn't correctly identify materials
  • Buttons for base upgrades not working after last update
  • Small text and UI elements make interaction difficult
  • Game stuck in landscape mode
  • Dark red text on black background is hard to read
  • UI elements overlap or are difficult to press
  • Some text and buttons are too small to read or interact with on smaller phones
  • The game is not optimized for mobile screens, leading to unreadability and difficulty in control
  • Inability to copy and paste

Requested features

12 requests
  • UI rework for mobile
  • Improve UI readability
  • Optimize UI for smaller screens
  • Add French translation
  • Add Turkish language support
Show 7 more
  • Option to restart game
  • Better mobile screen utilization
  • Adjust module queue automation
  • Fix AI smart crafting
  • Improve collision detection for projectiles
  • Consider fantasy-oriented theme
  • Add audio to the game

In-app purchases

None

Assembly Line 2

No in-app purchases

15 purchases

Unnamed Space Idle

One-time15
  • Spacezard 400 AIPoints$1.99
  • Spaceversary 400 AI Points$1.99
  • Spacemas 400 AI Points$1.99
Show 12 more
  • 200 AI Points$1.99
  • QOL Bundle$2.49
  • Spacezard Bundle$2.99
  • Spacemas Bundle$2.99
  • RetroFuture Cosmetic$3.99
  • Spaceversary Bundle$3.99
  • Steampunk Cosmetic$3.99
  • 550 AI Points$4.99
  • Essentials Bundle$4.99
  • 1200 AI Points$9.99
  • Advanced Bundle$9.99
  • 2600 AI Points$19.99

Questions

Is Assembly Line 2 free?
Assembly Line 2 is free to download, with no in-app purchases.
Is Unnamed Space Idle free?
Unnamed Space Idle is free to download, with in-app purchases available.
Which has better reviews, Assembly Line 2 or Unnamed Space Idle?
Assembly Line 2 is rated higher. Assembly Line 2 averages 4.8 out of 5 from 1.6K ratings, while Unnamed Space Idle averages 4.6 from 241 ratings.
Do Assembly Line 2 or Unnamed Space Idle have ads?
Assembly Line 2 shows ads; Unnamed Space Idle does not.
Which is updated more often, Assembly Line 2 or Unnamed Space Idle?
Assembly Line 2 ships an update weekly, and Unnamed Space Idle every 2 days. Most recently, Assembly Line 2 was updated on October 27, 2026 and Unnamed Space Idle on October 27, 2026.

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