Robot Defender vs Project Clean Earth
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Robot Defender
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We are recruiting robot pilot to defend our base. If you have a good sense of bounces, which is critical for our weapon. please join us. We are investigating more supporting facilities to help you survive on the battlefield. Robot Defender is a casual shooter game just to smash approaching enemies with different weapons and random treasure box to enhance the weapon momentarily.
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!
Screenshots
Verdict
The clearest difference is ads: Robot Defender at none against Project Clean Earth's shown. Robot Defender also leads on iOS requirement (9.0 vs 15.0). On price, update cadence, in-app purchases 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
Both are free to download. Robot Defender sells 1 one-off in-app purchase and Project Clean Earth sells 14 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 17, 2026 and October 19, 2026 respectively.
| Parameter | Robot Defender | Project Clean Earth |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (1.9K ratings) — better |
| Positive reviews | — | 47.0% of reviews |
| Number of ratings | — | 1.9K — better |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 28 MB | 418 MB |
| Age rating | 9+ | 12+ |
| Developer | Aimer Shine Co. Ltd | 1N1 |
Bugs and requests
Robot Defender
Not enough reviews yet to summarise bugs or 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
In-app purchases
Robot Defender
- All weapon and special sets.$0.99
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
Questions
Is Robot Defender free?
Is Project Clean Earth free?
Do Robot Defender or Project Clean Earth have ads?
Which is updated more often, Robot Defender or Project Clean Earth?
Other comparisons
