Project Clean Earth vs Idle Space Force
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Project Clean Earth
Embark on a survival adventure in a retro pixel world. Cleanse a radiation-contaminated Earth of mutant creepers using "Bernard," mankind's last weapon. Enhance your abilities with a variety of weapons, drones, and artifacts to complete the Earth Clean Project.
- Retro pixel graphic apocalypse world
- Sci-fi story and survival action
- Strengthen character with weapons, drones, artifacts
- Strategic weapon and drone combinations
- Random artifacts and events for replayability
- Discover mutant monster attack patterns
- New stages and modes as you grow stronger
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Rougelite + Hack'n Slash! An exciting apocalypse world view hidden in a retro pixel graphic. Sci-fi story and exciting survival action. Earth contaminated with radiation. to clean up the Earth that's left only the mutant creeper The last weapon of mankind, "Bernard," has come. Strengthen Bernard with dozens of weapons, drones, artifact items and various events! Complete the Earth Clean Project! - Strategically combine various weapons and drones, including short distance, long distance, and wide area. - Loglight Ryu's random artifacts and events are added to play new every time. - Find out the attack patterns of various and distinctive mutant monsters and target them - New stages and modes that increase as I become stronger Enjoy the new Rougelite Hack'n Slash now!
Idle Space Force
Command a retro spaceship in this incremental clicker game. Blast enemies, upgrade your ship, and explore planets to earn passive income. Enjoy classic shoot 'em up action with idle RPG mechanics.
- Incremental idle gameplay
- Retro space shoot 'em up battles
- Ship upgrades and prestige system
- Offline income generation
- Explore multiple unique worlds
- Pixelated retro graphics
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Take command of your ship in Idle Space Force! Blast your way through this retro incremental space shoot ‘em up, upgrade your ship, and travel to scenic and dangerous planets, collecting a passive income for your fleet! Idle Space Force is a retro idle tapper with the perfect blend of idle and RPG mechanics inspired by the classics like Space Invaders and Asteroids. Collect your ISF credits while offline and blast through seven unique worlds with classic shmup gameplay. Prestige your way through Deep Space upgrades and travel to never before seen worlds! Idle Gameplay Generate income as you cruise AFK or battle hordes of enemies through space! Your ship’s progress continues while offline, letting you pick up the action wherever you are in the universe. Action-Packed Battles Engage in intense pixelated retro space battles as you face relentless enemies from across the galaxy. With classic mechanics of the staple shoot ‘em up / shmup genre, you’ll be filling the screen with bombs and bees in a flash – battling enemy ships, enemy hornets, and enemy bosses. Gameplay inspired by 8 bit classics like Space Invaders and Asteroids. Upgrade Your Ship Kit out your ship with powerful upgrades and frontier technologies to unleash devastating firepower. Collect income like an idle game while offline, then add missiles, magnetism, and more to your vessel. Looking for even more firepower? Prestige your way to the ultimate unlocks and blast away the competition! Explore the Cosmos Vast worlds await you in the expanses of space. Uncover hidden treasures, acquire new upgrades and confront challenging bosses. From the outskirts of deep space to the remnants of the Terran homeworld, there are many unique challenges along the way. Addictive Experience With simple yet engaging gameplay mechanics, Idle Space Force offers endless entertainment for both casual players and hardcore enthusiasts alike. The mix of idle game mechanics and shoot 'em up action ensures that even when you’re not working – you’re always on the clock! Ready to conquer the cosmos? Download Idle Space Force now and embark on an epic retro idle shmup journey!
Screenshots
Verdict
Project Clean Earth and Idle Space Force both sit at 4.7 stars, but that hides the real split: 71% of Idle Space Force's written reviews are positive against 47% of Project Clean Earth's. Project Clean Earth's advantage is ratings volume (1.9K vs 547) and iOS requirement (15.0 vs 18). On price, rating, update cadence and ads 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
Both are free to download. Project Clean Earth sells 14 one-off in-app purchases and Idle Space Force sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.7 for Project Clean Earth against 4.7 for Idle Space Force. Both are backed by a comparable volume of ratings — 1.9K and 547 respectively. Written reviews are what separate them: 47% of Project Clean Earth's written reviews are positive against 71% of Idle Space Force's.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.
| Parameter | Project Clean Earth | Idle Space Force |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.9K ratings) | 4.7 (547 ratings) |
| Positive reviews | 47.2% of reviews | 71.3% of reviews — better |
| Number of ratings | 1.9K — better | 547 |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18 |
| Further details — not scored | ||
| Size | 401 MB | 136 MB |
| Age rating | 12+ | 9+ |
| Developer | 1N1 | Fuse Games |
Customer experience
Project Clean Earth
Idle Space Force
User reviews
Project Clean Earth
From 1.9K App Store ratingsWhat we love
- 🎮 Fun gameplay
- 👍 Addictive and enjoyable
- 🚀 Smooth performance
- 🎨 Great visuals and art style
Room to improve
- 🐛 In-app purchases not working
- 🔒 Lack of account sync between devices
- 🤯 Difficulty spike at later levels
- 🕰️ Excessive grinding required for progress
Idle Space Force
From 547 App Store ratingsWhat we love
- 🚀 Great game with decent core loop
- 👍 No intrusive ads and reasonable IAP
- 🚀 Constant new updates
- 🚀 Engaging and fun gameplay
- 👍 No forced ads
Room to improve
- 🐛 Inaccurate hit boxes for coins/fuel
- 🐛 Offline earnings issues
- 🐛 Crashes when trying to advance
- 🐛 Bugs and glitches
- ⏱️ Slow early game progression
Bugs and requests
Project Clean Earth
Reported bugs
3 issues- Purchased items not being delivered
- Crashes and freezes on certain devices
- Incorrect pricing and charges for in-app purchases
Requested features
4 requests- Multiplayer co-op mode
- More character customization options
- Improved balance and difficulty scaling
- Ability to quickly use stamina on beaten levels
Idle Space Force
Reported bugs
3 issues- Crashes when trying to advance to next planet
- Offline rewards not working properly
- Forced flashing screen from power-up
Requested features
7 requests- Loot falling towards the ship
- Seasonal item multipliers working on all items
- Visibility of loot from invisible enemies
- Hint system for clues
- Faster bullet speed
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- Earlier auto-fire/generation upgrades
- More levels/content
In-app purchases
Project Clean Earth
- Welcome Package$2.99
- Monthly Premium$3.99
- Intermediate Pack$4.99
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- Guerrilla Special Price$4.99
- Ad-Free Package$5.99
- Advanced Pack$6.99
- Gun Package$6.99
- Turret Package$6.99
- Buff Package$6.99
- Growth Fund Pack$8.99
- Growth Fund Pack 2$8.99
- Minerals Pack$10.99
- Mineral Pack2$12.99
- VIP Package3 variants$12.99
Idle Space Force
- Star Coin Currency x100$1.99
- Star Coin Currency x300$3.99
- Remove Ads$6.99
Show 5 moreShow fewer
- Prestige Pack$7.99
- Starter Pack$9.99
- Star Coin Currency x1000$10.99
- Star Coin Currency x2500$19.99
- Star Coin Currency x7500$49.99
Questions
Is Project Clean Earth free?
Is Idle Space Force free?
Which has better reviews, Project Clean Earth or Idle Space Force?
Do Project Clean Earth or Idle Space Force have ads?
Which is updated more often, Project Clean Earth or Idle Space Force?
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