Illusion Corridor vs Gosai
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Illusion Corridor
This isometric puzzle game challenges players to manipulate perspective and mechanisms to create impossible paths. Explore seven chapters with 65 handcrafted levels, featuring rotating bridges, sliding platforms, and more. Enjoy a quiet, offline experience with no ads or in-app purchases after the initial unlock.
- Isometric perspective puzzles
- Manipulate mechanisms and platforms
- 65 handcrafted levels
- Offline play
- No ads or subscriptions
- Multiple languages supported
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Illusion Corridor is a quiet isometric puzzle game about perspective. Height and distance cannot always be trusted. Rotate golden mechanisms, slide platforms, raise towers, and align paths that should never meet. When the eye believes, an impossible road appears. Seven chapters and 65 handcrafted levels: - A measured journey from intuitive puzzles to concealed mechanisms, linked axes, and three-character cooperation - Rotating bridges, sliding platforms, lifts, hidden doors, crumbling tiles, and night watchers - No ads, energy systems, loot boxes, or subscriptions - Play all 10 levels of Chapter One plus four later chapter previews for free - One purchase permanently unlocks the remaining 51 levels - Fully offline, with no personal data collection - English, Simplified Chinese, and Japanese Enter the lone tower, cross the court of mechanisms, and walk through the long night until every impossible path becomes one.
Gosai
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Gosai is a solo tile-laying puzzle inspired by Kutani ware — Japanese porcelain famous for its five overglaze colors. Pick a pile and take its three tiles. Place each one on a cell whose dots match its color. When the piles run out, the kiln opens, and your board is scored by three cards: fill the rim, build the diagonal, gather a flock of one color. Only the final board counts. NO LUCK Every pile — and the order in which they vanish — is visible from your very first move. There is nothing to draw and nothing to hope for. If you fall short, there was a better line, and you can find it. Stars are awarded at 55%, 75% and 92% of the best score possible on that exact board. Match the best score, and the firing is perfect. EIGHT CHAPTERS 200 handcrafted stages, from plain porcelain to gold brocade. New scoring cards appear as you go — 28 in all — and each one changes how you read the board. Every chapter also holds fifteen extra stages that build from gentle to brutal. TODAY'S PIECE One shared puzzle a day. The whole world plays the same board: one attempt for the Game Center leaderboard, then practice as often as you like. A QUIET SHOP Stars are earned, never sold. They buy looks alone — watercolor glazes, board frames, patterns and vessels. Chapters 1–2 and the daily puzzle are free forever; a single one-time purchase unlocks everything else. No ads. No subscriptions. No timers. • 200 stages — learn it in half a minute, chase perfection for weeks • 28 scoring cards, introduced one at a time • A daily puzzle with Game Center leaderboards • Plays fully offline • Available in 17 languages
Screenshots
Verdict
Illusion Corridor and Gosai 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. Illusion Corridor sells 1 one-off in-app purchase and Gosai sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on October 31, 2026 and October 26, 2026 respectively.
| Parameter | Illusion Corridor | Gosai |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 days | Every 2 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 3 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Qingyu Chen | Tatsuya Okuda |
In-app purchases
Illusion Corridor
- Full Game$2.99
Gosai
- Unlock All Stages$4.99







