Comparison

RoomEight vs NG ACTION ~NG行動ゲーム~

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

Head to head

RoomEight

Spot Anomaly. Escape the Loop.

About

RoomEight

Features

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Standard (Recommended) RoomEight is a tense observation game where a single mistake sends you back to the beginning. Start in Room 0 and memorize every detail. Move forward and decide: ・If the room is completely normal, tap NEXT. ・If you notice even one anomaly, tap BACK. Choose correctly and you advance. Choose wrong and you return to Room 0. The rules are simple, but your eyes will start to doubt what you saw. Features ・Simple two-button gameplay: NEXT / BACK ・A psychological, minimalist horror atmosphere ・Anomalies ranging from obvious to barely noticeable ・Progression that rewards attention and memory ・Collect achievements and badges as you improve Can you keep your focus, trust your judgment, and reach Room 8?

About

NG ACTION ~NG行動ゲーム~

Features

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会話中に響くブザー音 NG行動を推理して、相手を出し抜け！笑う。質問する。頷く。謝る。普段なら気にならない行動も、このゲームではNG行動になるかも？ — 【遊び方】・参加プレイヤーとゲームマスターを決める・トークテーマを決める・ゲームマスターがNG行動を設定・NG行動を見つけたらSTOP！・NG行動をしたプレイヤーはNGポイントが溜まる・最後に1番NGポイントが多いプレイヤーが「NG王」だ！【特徴】・スマホ1台で遊べる・途中でNGを追加できる・ブザー演出とスコア管理・飲み会、旅行、ボドゲ会におすすめ

Screenshots

RoomEight3 screens

NG ACTION ~NG行動ゲーム~4 screens

Verdict

The call

The clearest difference is in-app purchases: NG ACTION ~NG行動ゲーム~ at none against RoomEight's 6. NG ACTION ~NG行動ゲーム~ also leads on update cadence (daily vs fortnightly) and iOS requirement (15.1 vs 26.1). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. RoomEight sells 6 one-off in-app purchases. NG ACTION ~NG行動ゲーム~ asks for nothing beyond the download.

UpkeepUpdate frequency

RoomEight ships an update fortnightly, NG ACTION ~NG行動ゲーム~ daily. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 3 level

RoomEight versus NG ACTION ~NG行動ゲーム~: the parameters behind the verdict, then further details
Parameter	RoomEight	NG ACTION ~NG行動ゲーム~
Price	Free	Free
Update frequency	Fortnightly	Daily — better
Ads	Yes	Yes
In-app purchases	Yes	No — better
Devices	iPhone, iPad	iPhone, iPod
Requires iOS	26.1	15.1 — better
Further details — not scored
Size	1.2 GB	41 MB
Age rating	12+	4+
Developer	Kawamata Koichiro	Tomohiro Wakamatsu

In-app purchases

6 purchases

RoomEight

One-time6

Unlock Stage$0.99
Secret Book$0.99
Rewind Watch (Gold)$0.99

Show 3 more

Secret Book x5$3.99
Rewind Watch (Gold) x5$3.99
Remove Ads$29.99

None

NG ACTION ~NG行動ゲーム~

No in-app purchases

Questions

Is RoomEight free?

RoomEight is free to download, with in-app purchases available.

Is NG ACTION ~NG行動ゲーム~ free?

NG ACTION ~NG行動ゲーム~ is free to download, with no in-app purchases.

Do RoomEight or NG ACTION ~NG行動ゲーム~ have ads?

Both RoomEight and NG ACTION ~NG行動ゲーム~ show ads.

Which is updated more often, RoomEight or NG ACTION ~NG行動ゲーム~?

RoomEight ships an update fortnightly, and NG ACTION ~NG行動ゲーム~ daily. Most recently, RoomEight was updated on October 31, 2026 and NG ACTION ~NG行動ゲーム~ on November 5, 2026.