コスモロジー vs RoomEight
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
コスモロジー
Read full descriptionHide full description
『ワタシたちの手で、あの頃の宇宙を取り戻そう―』 宇宙に浮かぶ惑星が、どこかに姿を隠してしまった 遠い遠い未来の出来事･･･ ●ゲーム説明● あなたは、ある宇宙船の乗組員。 そして、”ヒヨっこ宇宙研究者”でもある。 あなたの目的は【惑星を探し出す】こと。 広大な宇宙で、いくつの惑星を見つけ出すことができるのでしょうか― いっそ10億年後とかにしてしまって人類発祥の地に戻ってきた感じにしてもいいかもですね
RoomEight
Read full descriptionHide full description
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?
Screenshots
Verdict
The clearest difference is in-app purchases: コスモロジー at none against RoomEight's 6. コスモロジー also leads on ads (none vs shown) and iOS requirement (8.0 vs 26.1). RoomEight's advantage is update cadence (fortnightly vs every 3 months). On price 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
Both are free to download. RoomEight sells 6 one-off in-app purchases. コスモロジー asks for nothing beyond the download.
コスモロジー ships an update every 3 months, RoomEight fortnightly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.
| Parameter | コスモロジー | RoomEight |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 78.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 26.1 |
| Further details — not scored | ||
| Size | 42 MB | 1.2 GB |
| Age rating | 9+ | 12+ |
| Developer | GlobalGear Co. Ltd. | Kawamata Koichiro |
In-app purchases
コスモロジー
No in-app purchases
RoomEight
- Unlock Stage$0.99
- Secret Book$0.99
- Rewind Watch (Gold)$0.99
Show 3 moreShow fewer
- Secret Book x5$3.99
- Rewind Watch (Gold) x5$3.99
- Remove Ads$29.99
