Infinite Corridor vs ECHO LEGION
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Infinite Corridor
Lead squads of heroes and monsters through an endless dungeon, collecting loot to build and upgrade your village. Explore procedurally generated floors, recruit diverse units, and battle rivals in this dark-fantasy RPG.
- Procedurally generated dungeons
- Squad-based real-time battles
- Hero and monster recruitment
- Village renovation and training
- Gear crafting and monster fusion
- PvP Colosseum battles
- Offline play for core modes
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Lead squads of heroes and monsters into the Infinite Corridor, an endless dark-fantasy dungeon. Bring your loot home, grow your village, and dive deeper. Play in Japanese, English, Traditional Chinese or Korean. • Set a formation at the Gate, then explore procedurally generated floors with up to four squads • Battles play out in real time on their own; your squads, skills and gear decide them • Adventurers in 18 base jobs and 18 hybrid jobs fight side by side with the monsters you recruit • Traps, monster nests and rival adventurer parties; bosses guard milestone floors • Renovate the village with materials and points; train the whole party at the Training Hall • Craft and upgrade gear at the Workshop; fuse monsters at the Ranch, where the right pairs become new species • Take on quests and missions at the Adventurers' Guild, and collect awards and titles • Battle other players' defense formations at Lv50 in the village Colosseum, with weekly rankings • Grow each adventurer's Growth Tree for stats and a signature skill • Ranch monsters grow stronger through Awakening and work on expeditions or as helpers; befriend more species for bestiary bonuses • Climb the Castle on the village hill: 100 castle-only monsters, 32 kinds of room gimmicks and a boss every 5 floors; recruit castle heroes and monsters with castle points • Reach B30F in the dungeon to open the Sea Temple: dive through 30 floors where the rising and falling tide changes which paths are open. Air runs low under water and refills at bubbles and air pockets. A boss every 5 floors, a raid on a giant Kraken at floor 30 and endless rounds from floor 31; pearls hire the species you defeat and raise the Tide's Blessings, and temple materials craft Sea God's Charms • The Mythic Four Lords, born from two fully awakened Legendary monsters; Limit Break Shards that raise the awakening cap of Legendary and Mythic monsters; a raid boss that changes every week; rankings for the Castle and the deepest dungeon floor • Four difficulties and endless Abyss ranks beyond Nightmare, each rank with its own anomaly and a trial lord on B100F; start a run from the deep floors you have reached; a bestiary of 480 monsters and a deepest-floor record to keep pushing Portrait or landscape on iPhone and iPad. No ads. The dungeon, the village, the Castle and the Sea Temple play offline; the Colosseum, rankings and cloud save need a connection. Free to play. Squads 3 and 4, 2x and 3x speed and more are unlocked with gems. Castle Treasures, an equipment draw, is paid with village and castle points only (gems cannot be used); the odds are shown before every draw. Gems are earned in the game, for example by reaching milestone floors for the first time and from guild awards, and can also be bought as optional in-app purchases. Gems can't be restored with "Restore Purchases", so back up with cloud save (restore code) before changing devices.
ECHO LEGION
Build your own legion by recruiting defeated enemies as allies. Master strategic formations and unit placement to overcome stronger opponents. Develop your units and unlock new abilities to tackle various challenges.
- Recruit defeated enemies as allies
- Strategic formation and unit placement
- Develop and combine units
- Unlock new abilities and playstyles
- Cosmetic purchases only, no gacha
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倒した強敵の「残響」を従え、自分だけの軍団を築く。 ECHO LEGION は、編成と陣形で格上を倒す軍団構築バトルです。 ■ 倒した敵が、仲間になる 勝った相手は「残響」となって軍団に加わります。ゴブリンの王も、森の巨木も。集めた残響を育て、組み合わせ、あなただけの軍団をつくりましょう。 ■ 格上を、配置で倒す 戦力差をひっくり返すのは編成と陣形。前衛・後衛の置き方、主人公の位置、残響同士の相性で、戦いの結果は大きく変わります。格上に勝った倍率は「UNDERDOG」の記録として残ります。 ■ 育つほど、選択肢が広がる 共鳴コアで能力を習得し、キーストーンで戦い方そのものを変える。ステージ、試練、シーズンの裂け目と、挑む場所はいくつもあります。 ■ 強さは、売らない 課金はカードの装い(見た目)と、遊びやすさを助ける機能だけ。ガチャはありません。勝敗はあなたの軍団で決まります。 ※ 基本プレイ無料・アプリ内課金あり ※ Google / Apple アカウントと連携すると、進行をクラウドに保存できます ■ 月額メンバーシップ「盟約」について ・月額 500円(自動更新)。期間終了の24時間前までに解約しない限り自動で更新されます ・解約は iPhone の「設定」→ Apple ID →「サブスクリプション」からいつでも行えます ・利用規約:https://echo-legion.com/legal/terms ・プライバシーポリシー:https://echo-legion.com/legal/privacy
Screenshots
Verdict
The clearest difference is review sentiment: Infinite Corridor at 50% against ECHO LEGION's 0%. Infinite Corridor also leads on ads (none vs shown). On price, update cadence, in-app purchases and monetization model 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. Infinite Corridor sells 3 one-off in-app purchases and ECHO LEGION sells 10 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Infinite Corridor ships an update every 3 days, ECHO LEGION every 4 days. The most recent releases landed on November 9, 2026 and November 10, 2026 respectively.
| Parameter | Infinite Corridor | ECHO LEGION |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews — better | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 days — better | Every 4 days |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 105 MB | 111 MB |
| Age rating | 12+ | 12+ |
| Developer | HIROYUKI KANNARI | Tatsuya Maeda |
Customer experience
Infinite Corridor
ECHO LEGION
In-app purchases
Infinite Corridor
- 300 Gems$0.99
- 3600 Gems$5.99
- 9000 Gems$11.99
ECHO LEGION
- 盟約(月額)$2.991 Month
- おかえりパック$2.99
- 覇者を越えたパック$2.99
- ECHO PASS 凍てつく残響$5.99
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- PASS+ へのアップグレード ・ はじまりの共鳴$9.99
- PASS+ へのアップグレード ・ 凍てつく残響$9.99
- 結晶 ×1,680$11.99
- ECHO PASS+ 凍てつく残響$14.99
- 結晶 ×2,550$19.99
- 結晶 ×9,600$59.99
Questions
Is Infinite Corridor free?
Is ECHO LEGION free?
Do Infinite Corridor or ECHO LEGION have ads?
Which is updated more often, Infinite Corridor or ECHO LEGION?
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