Comparison

SlimeSanctuary vs Backyard Biome

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

Head to head
About

SlimeSanctuary

Features
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Slime Sanctuary is a cozy creature-collection game with no combat, no timers to dread, and no predatory pressure โ€” just gentle daily care and the quiet joy of watching something new appear. Adopt squishy little slimes and give them a home. Each one is procedurally rendered โ€” its own wobbly shape, colour, pattern, and sleepy or starry eyes โ€” so no two slimes ever look quite alike. CARE SHAPES WHO THEY BECOME Every day, feed your slimes and give them attention. What you choose gently nudges their colour and pattern. Care for a few days and watch a brand-new evolution drop โ€” the satisfying little surprise at the heart of the game. DISCOVER ALL 50 VARIETIES - Breed two slimes to blend their traits into a new baby - Unlock new environments โ€” Cavern, Beach, Twilight and more - Find rare Radiant shinies that glow - Fill your Codex one variety at a time GENTLE BY DESIGN There's no fighting, no losing your slimes, and no clock punishing you for stepping away. Earn Dew at your own pace and spend it on rooms, slots, and breeding. It's a calm place to potter for a few minutes a day. SANCTUARY KEEPER (one-time purchase) - Removes all ads - +4 sanctuary slots to keep more slimes - Unlocks the exclusive Aurora environment - Earns bonus Dew every day Free players can unlock all Keeper perks for 30 minutes any time by watching a short video. Slime Sanctuary shows non-personalized ads only and does not track you across other apps. If you love AbyssRium, Neko Atsume, or just want a soft, original creature-care game to unwind with โ€” pull up a chair. Your slimes are waiting.

About

Backyard Biome

Features
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Backyard Biome is a calm but deep ecosystem simulation where every planting decision changes a living food web. GROW A SYSTEM, NOT A DECORATION - Shape a 10 by 7 yard with native flowers, grasses, shrubs, trees, ponds, logs, nest boxes, and rain capture - Balance soil, water, shade, nutrients, habitat, and seasonal change - Watch insects, birds, fungi, pollinators, predators, and decomposers respond to the yard you create - Handle drought, storms, disease, invasive species, and migration without timers or premium currency - Follow readable food-web links and discover why a beautiful yard can still be ecologically fragile LEARN THROUGH CONSEQUENCES - Explore a 32-species field guide with habitat roles and relationships - Read biodiversity, stability, watershed, population, and soil indicators - Compare choices across identical seeded Daily Garden and Weekly Watershed scenarios - Earn optional Game Center achievements and compete on Daily and Weekly leaderboards - Listen to an original 20-track generative-inspired soundtrack while the seasons turn BUILT AS A COMPLETE PREMIUM GAME - One paid download with no ads, subscriptions, in-app purchases, energy, or wait timers - No login and no developer-operated server - Gardens remain on device, with optional private iCloud synchronization - Dynamic Type, VoiceOver descriptions, reduced motion, haptic controls, and symbols that do not rely only on color The simulation is scientifically grounded entertainment and is not professional horticultural, pesticide, or environmental advice.

Screenshots

SlimeSanctuary4 screens
Backyard Biome4 screens

Verdict

The call

The clearest difference is price: SlimeSanctuary at Free against Backyard Biome's $2.99. Backyard Biome's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

SlimeSanctuary is free to download; Backyard Biome costs $2.99 up front. SlimeSanctuary sells 1 one-off in-app purchase. Backyard Biome asks for nothing beyond the download.

Scorecard3 real differences ยท 3 level
SlimeSanctuary versus Backyard Biome: the parameters behind the verdict, then further details
ParameterSlimeSanctuaryBackyard Biome
PriceFree โ€” better$2.99
Update frequencyโ€”Monthly
AdsYesNo โ€” better
In-app purchasesYesNo โ€” better
DevicesiPhoneiPhone, iPad โ€” better
Requires iOS17.017.0
Further details โ€” not scored
Size4 MB102 MB
Age rating4+4+
DeveloperChristian PedersenRobert Corbin

In-app purchases

1 purchases

SlimeSanctuary

One-time1
  • Sanctuary Keeper$4.99
None

Backyard Biome

No in-app purchases

Questions

Is SlimeSanctuary free?
SlimeSanctuary is free to download, with in-app purchases available.
Is Backyard Biome free?
Backyard Biome costs $2.99, with no in-app purchases.
Do SlimeSanctuary or Backyard Biome have ads?
SlimeSanctuary shows ads; Backyard Biome does not.

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