Comparison

癒術士と黑きもちもちの襲来 vs HydrogenGame

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

Head to head
About

癒術士と黑きもちもちの襲来

Engage in a unique match-3 puzzle game where you heal approaching monsters. Rearrange and match creatures of the same attribute to attack and achieve high scores. Experience a special project game crafted with passion and individuality.

Highlights
  • Match-3 puzzle gameplay
  • Heal approaching monsters
  • Rearrange creatures to attack
  • Create King Rabbits for special attacks
  • Aim for high scores
  • Special project game
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メルクストーリア初のパズルゲーム登場! 迫りくるモンスター達を、簡単操作のマッチ3パズルで「もちもち」癒そう! ● 遊び方 ・暴走した「クロハビューン」を、ラビューン達と協力して癒やせ! ・隣同士の「ラビューン」を並び替えて、同じ属性の「ラビューン」をタテかヨコに3体以上並べると攻撃! ・4匹以上並べると「キングラビューン」登場!タップか並べて消すと、同じ属性の「ラビューン」達が一斉攻撃! ・「クロハビューン」に攻撃されると、体力が減ってしまう!体力がなくなるとバトル終了! ・とにかく、たくさん「クロハビューン」達を癒して、ハイスコアを目指そう! ---------- 『癒術士と黑きもちもちの襲来 - メルスト外伝 -』はHappy Elementsカカリアスタジオで制作されたSuper Liteアプリです。 Super Liteアプリとは、Happy Elementsカカリアスタジオのスタッフが自ら企画を考え、少人数かつ限られた期間内でゲームを企画から開発まで行うチャレンジプロジェクトです。 新しいチャレンジを希望するメンバーでチームを結成し、およそ1ヶ月程度の作業時間を使って1つのゲームを作り上げます。 Happy Elementsがお届けするいつものゲームとは一味違う、個性と熱意の詰まったゲームをお楽しみください!

About

HydrogenGame

Features
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【Created by someone who doesn't understand chemistry】 It's okay if you don't understand chemistry or the periodic table! Maybe you can learn while playing? 【Features】 -The rules are the same as that watermelon game. But it's a different playing experience. Because the stage is circular, the elements move all the time. - 4 difficulty levels and 3 game modes. Even for people who are good at games, it is quite difficult to score 5000 points on the highest difficulty level. -You can naturally learn the names of elements while playing. Hydrogen → Helium →……. 【Overview】 "Hydrogen Game" is a puzzle game where you aim to get a high score by dropping 118 types of elements from the periodic table. Players can drop elements. When attached to the same type of element, it changes to the next type of element. If the elements fly out of the circle and hit the wall, the game is over. Elements can be purchased by consuming energy. Use it when it's dangerous. This is a game that uses elements and the periodic table, but even those who don't understand the periodic table can have an explanation during the game, so they can play while understanding the rules. [4 difficulty levels] There are four levels of difficulty: "Easy," "Normal," "Difficult," and "Very Difficult." The higher the difficulty level, the more types of elements will appear. First of all, let's learn the rules of the game with "easy". [3 game modes] Normal mode: You can play with basic rules. Let's start playing with this mode. When you combine elements of the same type, they change into the next type of element. Period + Tribe Mode: This mode has “tribe” rules added to the normal mode. Once you get used to normal mode, try it out. When elements from the same type or family group are combined, they change into the next type of element. Tribe only mode: A mode with only the rules of the tribe. We recommend playing the other two modes before choosing this mode. When you put elements of the same type together, they change to the next element in the same group. 【The goal】 ・Achieve a score of 5000 points. ・Extinguish the 118th element. The game is cleared when you complete the goal in all modes and on all difficulties.

Screenshots

癒術士と黑きもちもちの襲来4 screens
HydrogenGame4 screens

Verdict

The call

The clearest difference is price: 癒術士と黑きもちもちの襲来 at Free against HydrogenGame's $2.99. HydrogenGame's advantage is update cadence (weekly vs every 14 months) and iOS requirement (12.0 vs 15.0). On ads, 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

癒術士と黑きもちもちの襲来 is free to download; HydrogenGame costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

癒術士と黑きもちもちの襲来 ships an update every 14 months, HydrogenGame weekly. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

Scorecard3 real differences · 5 level
癒術士と黑きもちもちの襲来 versus HydrogenGame: the parameters behind the verdict, then further details
Parameter癒術士と黑きもちもちの襲来HydrogenGame
PriceFree — better$2.99
Positive reviews75.0% of reviews—
Update frequencyEvery 14 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size132 MB89 MB
Age rating4+4+
DeveloperHappy Elements K.KAkihiro Kakoi

In-app purchases

None

癒術士と黑きもちもちの襲来

No in-app purchases

None

HydrogenGame

No in-app purchases

Questions

Is 癒術士と黑きもちもちの襲来 free?
癒術士と黑きもちもちの襲来 is free to download, with no in-app purchases.
Is HydrogenGame free?
HydrogenGame costs $2.99, with no in-app purchases.
Do 癒術士と黑きもちもちの襲来 or HydrogenGame have ads?
Neither 癒術士と黑きもちもちの襲来 nor HydrogenGame shows ads.
Which is updated more often, 癒術士と黑きもちもちの襲来 or HydrogenGame?
癒術士と黑きもちもちの襲来 ships an update every 14 months, and HydrogenGame weekly. Most recently, 癒術士と黑きもちもちの襲来 was updated on October 7, 2026 and HydrogenGame on October 5, 2026.

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