プロセス・ディフェンス vs Summon Busters
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
プロセス・ディフェンス
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タワーディフェンス×パズルの新感覚ゲーム！ 【分岐】や【ループ】を駆使して、モンスターの侵入を防げ！ 全ての流れてくる数字を、自機であるハートに辿り着くまでに０以下にすることができるばゲームクリア！ 「数字を３減らす」ユニットや、「数字を５で割る」ユニットなど、 計２５種類もある豊富な演算ユニットを駆使して、ゲームクリアを目指そう！ 収録ステージは全４０ステージ！ サクッと解けるお手軽なステージから、じっくり考えるような骨のあるステージまで幅広く用意されているぞ！ こんな人にオススメ ・パズルゲームが好きな人 ・プログラミングが好きな人 ・ものが流れてくるの（交通・ベルトコンベア）を眺めるのが好きな人 ・約数や素数などの概念をゲームを通じて勉強したい人
Summon Busters
Engage in a deck-building rogue-like where you summon diverse characters to battle abstract "Concepts". Strategically choose from three random characters, collect items to enhance them, and build unique decks across 20 stages to achieve victory.
- Deck-building rogue-like gameplay
- Summon over 60 characters
- Collect and use 45 items
- Strategic character enhancement
- 20 stages of combat
- Create original concept decks
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Summon Busters is a deck-building rogue-like game where you use summoning magic to call upon a variety of characters, such as the Demon Lord, Hero, Sage, and Phoenix, to defeat the "Concepts". Choose one character out of three randomly selected every time to create your own ultimate deck list. The gameplay is simple. Press the play button, pick a character (one out of three), retire unnecessary characters, and collect lots of items to buff up your characters. Then, defeat different concepts on each stage and aim for the final stage (20 stages)! There are over 60 characters you can summon, 45 items, and 7 legendary items. Create original concept decks, such as decks that increase attack power by combining the same characters or decks that focus on nurturing specific characters. In addition, we are developing a lot of additional content! New characters, items, and more will be added as appropriate. Download Summon Busters now and build the strongest deck! BGM: https://musmus.main.jp/info.html
Screenshots
Verdict
プロセス・ディフェンス and Summon Busters are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
プロセス・ディフェンス ships an update weekly, Summon Busters every 2 weeks. The most recent releases landed on October 27, 2026 and October 7, 2026 respectively.
| Parameter | プロセス・ディフェンス | Summon Busters |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Weekly — better | Every 2 weeks |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 81 MB | 128 MB |
| Age rating | 4+ | 17+ |
| Developer | Chikai Ito | Keisuke Tanaka |
In-app purchases
プロセス・ディフェンス
No in-app purchases
Summon Busters
No in-app purchases
