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The project file of Lawan Karat costs US$79. Use the "Buy project file" section on this page to pay online or order via WhatsApp; bundle discounts apply when you buy several games.

Cerdas Inovasi DigitalSoftware Developer ~ Custom ServicesTraining ~ Established since 1995

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Lawan Karat

Protect fences, bridges, piers and ships from rust with paint, zinc and sacrificial anodes

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Lawan Karat is a science strategy game that turns the topic of corrosion into a lively battle of wits against Rusty, a mischievous blob who loves scratching paint. Players manage a maintenance budget to protect a garden fence, a river bridge, a seaside pier and an ocean ship using paint, sanding, zinc coating (galvanising) and sacrificial anodes, while reading the dry, humid, fresh-water, sea-splash and submerged zones. Rain, morning dew and storms make every year different, and a “Did you know?” card after each level explains that iron rusts because of water and oxygen; the look is easy to adapt to a school, publisher or industrial brand’s material. Try it right here below, then picture a game like this featuring your brand’s logo, characters and prizes.

Play It Now

Pick a tool, then tap a steel part · press START · 1–4 pick tool · arrows select part · Enter apply · space start/fast · P pause · M sound

Play Full Screen (best on phones)

Rotate your phone to landscape for the best experience.
Add to Home Screen from your browser menu for quick access.

Game Info

CategoryStrategy Game
ThemeScience & Technology
LanguageID · EN

Gallery

Ratings & Reviews

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Gameplay

20 levels across 4 worlds (garden fence, river bridge, seaside pier, ocean ship) with three difficulty settings: Relaxed, Normal and Expert
Four science-based tools: barrier paint, rust sanding, a zinc coat that sacrifices itself even when scratched, and sacrificial anodes that only work under water
A rust simulation that grows when water and oxygen meet, faster with sea salt, plus rain, morning dew, storms and scratches thrown by Rusty
A condition panel for every steel part, a flying brush robot that zips to each repair, stars and scores, and a “Did you know?” card on every level

Production Quality

Original graphics, characters, music and sound effects created by our team
Plays instantly on phones, tablets and laptops with nothing to install, lightweight and smooth at 60 fps
Touch and keyboard controls, with high scores and progress saved on the device
Available in Indonesian and English

Order One for Your Brand

Swap the structures, theme and facts for your curriculum, paint or coating products, or maintenance services, complete with brand colours and logo
Ideal for science publishers, tutoring brands, steel and paint industry exhibitions, or infrastructure-safety education campaigns
Add online leaderboards, coupons or prizes, QR codes for events and visitor data forms
Fast turnaround from concept to launch, including setup on your website or app

Play Lawan Karat Online for Free on Phone and Laptop

Lawan Karat is a corrosion science strategy game you can play online for free right in your browser, with no download and no app to install. It runs smoothly on Android phones, iPhones, tablets, laptops and PCs, so it is perfect for a quick break at any time. The difficulty rises step by step, welcoming for beginners yet still challenging for experienced players. Lawan Karat is developed by PT Cerdas Inovasi Digital, a game development studio in Indonesia, and can be customised for brand promotions, events and education.

Play Full Screen

Frequently Asked Questions about Lawan Karat

Is Lawan Karat free?

Yes. Lawan Karat is free to play online in your browser, with no download and no sign-up needed.

Can I play Lawan Karat on my phone?

Yes. It runs in the browser on phones, tablets and laptops. On a phone, use the full screen button and rotate to landscape if the game needs more room.

How do I play Lawan Karat?

Pick a tool, then tap a steel part · press START · 1–4 pick tool · arrows select part · Enter apply · space start/fast · P pause · M sound

How many levels does Lawan Karat have?

Lawan Karat is built in progressive steps, with the difficulty rising as you play. Category: Strategy Game.

Can I order a version with my own brand?

Buy the Lawan Karat Project Files

Get the full game to learn from, customise for your brand or publish on your own site.

Complete source code (HTML5 Canvas + JavaScript), no libraries or build step needed
All levels, graphics, music and sound effects included, ready to run in any modern browser
A short guide to changing texts, colours and difficulty and putting the game on your own website

Instant download after payment · secure checkout by PayPal · Buy 3+ games together and save up to 30%

Want a game like this for your brand?

We design and build custom games for event activations, booths, campaigns and education, complete with your logo, mascot, prizes and leaderboards. Besides web (HTML5), we can build it in the format you need: Unity, Unreal Engine, Godot, an Android/iOS app, a desktop (Windows/Mac) game, a touchscreen kiosk, WebGL 3D, or AR/VR. Tell us your idea and we will send a concept and quote.

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