Comparison

Dragon Ruins I vs KAII

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

Head to head
About

Dragon Ruins I

Embark on a retro-style 3D dungeon crawler adventure. Explore ancient ruins, form a party of four from 12 classes, and engage in fast-paced combat with auto-battle. Conquer increasingly challenging enemies and a powerful final boss.

Highlights
  • 3D dungeon crawler experience
  • Retro-style RPG
  • Party formation with 12 classes
  • Fast-paced auto-battle combat
  • Progressive difficulty and boss challenges
  • Streamlined controls and story
Features
Read full description

A refined and streamlined 3D dungeon crawler experience for those weary of complex stories and intricate controls. Brave the depths of an ancient ruin discovered in the capital of Isigwere, where no soul has ever returned—and where a legendary dragon awaits. In this retro-style dungeon crawler RPG, become the hero who conquers the maze and slays the beast lurking in the shadows. - A perfectly paced adventure you can enjoy in one go. Explore the ancient ruins and become stronger. - Form your party by choosing four members from 12 classes, including Knight and Archer. - Fight or flee. Enjoy smooth, fast-paced combat with convenient auto-battle. - With each run, enemies grow in number and strength. Challenge an ever more powerful final boss through repeated playthroughs. * This app supports devices newer than iPhone XS and iPad 8th with iOS 15 and up. User support on non-supported devices is not guaranteed.

About

KAII

Features
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【KAII-ROKU — You are the last Sealer】 The creatures that should have vanished are stirring once more. Yokai, cryptids (UMA), and the urban legends whispered in the dark— hunt down 150 mysterious beings and seal them with your own hands. ■ Timing-Based Sealing Battles Tap the instant the shrinking spirit circle closes in. Nail a PERFECT for 1.5x power. Easy to learn, tense to master. ■ Explore 5 Haunted Spots Shrine → School → Abandoned Village → Sea of Trees → Lake. The deeper you go, the more fearsome the creatures. New areas unlock as you progress. ■ Forge Talismans & Amulets Upgrade your attack "Fuda" talismans and defense "Omamori" amulets across 6 tiers. Collect spirit coins, grow stronger, and take on tougher yokai. ■ Complete the Codex Every sealed creature is recorded in your bestiary. Collect all 150 yokai, cryptids, and urban legends—check their rarity, stats, and category. ■ Perfect for players who love ・Yokai, cryptids, and Japanese folklore ・Collecting and completing bestiaries ・Quick one-handed games for short breaks ・Dark, atmospheric Japanese horror

Screenshots

Dragon Ruins I4 screens
KAII4 screens

Verdict

The call

The clearest difference is price: KAII at Free against Dragon Ruins I's $3.99. KAII also leads on iOS requirement (13.0 vs 15.0). Dragon Ruins I's advantage is ads (none vs shown) and update cadence (every 6 days vs every 6 weeks). On 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

CostPrice · In-app purchases · Ads · Monetization

KAII is free to download; Dragon Ruins I costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Dragon Ruins I ships an update every 6 days, KAII every 6 weeks. The most recent releases landed on November 2, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 6 level
Dragon Ruins I versus KAII: the parameters behind the verdict, then further details
ParameterDragon Ruins IKAII
Price$3.99Free — better
Rating3.3 (19 ratings) — better—
Positive reviews32.0% of reviews—
Number of ratings19 — better—
Update frequencyEvery 6 days — betterEvery 6 weeks
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size148 MB78 MB
Age rating9+12+
DeveloperKotobuki Solution Co., Ltd.yota hojo

In-app purchases

None

Dragon Ruins I

No in-app purchases

None

KAII

No in-app purchases

Questions

Is Dragon Ruins I free?
Dragon Ruins I costs $3.99, with no in-app purchases.
Is KAII free?
KAII is free to download, with no in-app purchases.
Do Dragon Ruins I or KAII have ads?
KAII shows ads; Dragon Ruins I does not.
Which is updated more often, Dragon Ruins I or KAII?
Dragon Ruins I ships an update every 6 days, and KAII every 6 weeks. Most recently, Dragon Ruins I was updated on November 2, 2026 and KAII on October 28, 2026.

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