Worm World vs Koitopia
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Worm World
Manage your own worm farm, feeding your worms the right food and maintaining optimal moisture and acidity levels. Keep pests away to produce potent worm tea and a mountain of treats. Enjoy groovy music and fast-paced action with cute characters.
- Worm farm management
- Maintain moisture and acidity
- Pest control
- Produce worm tea and treats
- Groovy music and sound effects
- Cute characters
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Get down and dirty with nature’s cutest recyclers and take charge of your very own Worm Farm. You’ve got lots of little mouths to feed, but not everything’s good for them. Keep your worms healthy and they’ll reward you not just with love but also with super potent treat-growing worm tea! They’re sensitive little creatures though. So watch your moisture and acidity levels. Otherwise rats, ants and other nasties will invade and wreak havoc on your munching minions. Features: • Groovy music and sound effects • Fast and furious action • The world’s cutest cast of characters • Amass a mouth-watering mountain of treats This is one game you’ll want to recycle over and over.
Koitopia
Breed and grow unique Koi varieties in a virtual pond. Complete quests, solve puzzles, and customize your environment. Showcase your prized fish in this relaxing 3D simulation game.
- Koi breeding mechanics
- Pond customization
- Daily quests and puzzles
- Event-based challenges
- Mini-games (Feed the Fish, Catch the Food)
- Ornamental Pond showcase
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Koitopia is a captivating mobile game that immerses you in the world of Koi. Begin your journey with a starter pond filled with Koi and explore genetics and breeding mechanics to create unique and vibrant Koi varieties. Engage in daily quests, solve puzzles, progress through levels, and participate in event-based challenges to earn KOIns, experience, and resources. Customize your ponds, participate in mini-games like Feed the Fish and Catch the Food, and showcase your best Koi in the Ornamental Pond. Experience a semi-realistic 3D art style with portrait orientation gameplay, powered by the Unity Engine. Whether you're a casual gamer or an aspiring breeder, Koitopia offers a relaxing and rewarding experience as you nurture and grow your Koi collection.
Screenshots
Verdict
The clearest difference is rating: Worm World at 5.0 against Koitopia's 2.1. Worm World also leads on in-app purchases (none vs 5) and review sentiment (56% vs 47%). Koitopia's advantage is update cadence (every 5 weeks vs every 31 months) and ratings volume (16 vs 1). On price, ads 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. Koitopia sells 5 one-off in-app purchases. Worm World asks for nothing beyond the download.
Worm World holds the better App Store score, 5.0 against 2.1. That said, the two scores are not equally well evidenced: Koitopia has 16 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 56% of Worm World's written reviews are positive against 47% of Koitopia's.
Worm World ships an update every 31 months, Koitopia every 5 weeks. The most recent releases landed on August 25, 2026 and September 20, 2026 respectively.
| Parameter | Worm World | Koitopia |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 2.1 (16 ratings) |
| Positive reviews | 55.6% of reviews — better | 47.1% of reviews |
| Number of ratings | 1 | 16 — better |
| Update frequency | Every 31 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 6.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 34 MB | 352 MB |
| Age rating | 4+ | 4+ |
| Developer | Brisbane City Council | Homeworx Consulting Pty Ltd |
Customer experience
Worm World
Koitopia
In-app purchases
Worm World
No in-app purchases
Koitopia
- Water Koi Fortune Pack$0.99
- Koi Spring Bundle$4.99
- Koi Ripples Cache$9.99
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- Koi Tranquility Collection$24.99
- Koi Floating World Trove$79.99









