# CDO2: Dungeon Defense — Run a dungeon and beat heroes! > Dungeon defense strategy game where you command monsters against heroes. (iPhone/iPad app by GIGR Inc..) - Source: https://appshunter.io/ios/app/cdo2-dungeon-defense/id1594193260 (this page in markdown: same URL + `.md`) - Developer: [GIGR Inc.](https://appshunter.io/developer/1895985097) - Category: Games, Simulation, Strategy - Price: Free with in-app purchases - Rating: 4.70/5 from 35 App Store ratings · 43 written reviews indexed - Age rating: 12+ - Requires: iOS 15.0 · 373 MB - Languages: American English, Korean - Released: 2021-12-06 - Data updated: 2026-08-25 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/cdo2-dungeon-defense/id1594193260/reviews.md ## What is CDO2? You are now a Chief Dungeon Officer (CDO)! Your one and only mission is to keep your dungeon running as long as possible. Command the Demon King and deploy monsters to keep out the hordes of heroes! ◆ More than 90 different monsters Monsters with unique attributes depending on their type, race, and role! Summon the appropriate monsters for the best synergy between their attributes! ◆ Various items requiring strategic choices More than 80 kinds of equipment that can be worn by individuals monsters. More than 30 kinds of Totems that can be placed in each room of the dungeon. More than 90 kinds of Relics that grant effects to the entire dungeon! Choose the best items to match your strategy! ◆ Random events More than 100 events with their own stories! Check out the list of upcoming events and come up with the best strategy! ◆ The dungeon's fate can change in a moment Invest in long-term research, Make use of Goblin Bandits and pillaging to make up for scarce resources, Have your Demon King consume monsters to raise his stats, Make choices and see how they play out in battle! ◆ Permanent secondary attributes Gain incredible advantages according to the level of secondary attributes. Earn as many as you can through gameplay! ◆ Reach your limits, and beyond! Reach 50 years to clear the game, and then carry on through Challenge Mode at a higher difficulty! As the difficulty increases, penalties accumulate. Try your own strategy in extreme conditions! ◆ Longer than a year, competitive mode Competitive mode that competes with other users without a separate clear! Rewards are given every Monday with ranking initialization. Show off your skills under different conditions every week! ## Key features - Over 90 unique monsters - Strategic item and totem placement - Random events with unique stories - Resource management and research - Permanent secondary attribute upgrades - Challenge Mode for increased difficulty - Competitive weekly ranking mode ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Sandglass 3 | $0.99 | one-time | | Sandglass 20 | $3.99 | one-time | | Sandglass 50 | $7.99 | one-time | | CDO Basic Package | $2.99 | one-time | | CDO Basic Package (Offline) | $1.99 | one-time | | Sandglass 250 | $31.99 | one-time | | 200 Hourgalsses (monthly) | $19.99 | one-time | | 100 Hourgalsses (monthly) | $9.99 | one-time | | _200 Hourgalsses | $19.99 | one-time | | _Mega Pack | $4.99 | one-time | | _Epic Pack | $19.99 | one-time | | _Welcome Pack | $2.99 | one-time | | _300 Hourgalsses | $39.99 | one-time | | _100 Hourgalsses | $12.99 | one-time | | _Special Offer | $9.99 | one-time | ## Recent user reviews (10 of 43) All indexed reviews: https://appshunter.io/ios/app/cdo2-dungeon-defense/id1594193260/reviews.md ### 3/5 — Lost my acc *2026-05-22, version 03.01.01* After not logging in for a week, i decided to finally logged in back in the game and suddenly my acc and all my progress was gone after this new update ### 5/5 — Segunda review ;) *2026-05-12, version 03.00.03* Eu amo esse jogo, mesmo tendo uma arte simples é muito bem feita. O ponto principal q eu gosto tanto dele é a sua mecânica, eu gosto muito dos diferentes monstros e oq me surpreende é a diversidade gigantesca de eventos. Um jogo extremamente viciante e que eu não acho q vou nunca parar de jogar ### 5/5 — Recommendation *2025-11-18, version 03.00.02* Great game just that the in app purchases are too expensive. What if there is a discount especially on christmas ### 5/5 — Actual masterpiece *2025-11-16, version 03.00.02* This game has to be one of the most underrated games i ever played it is actually insane, you cannot win though, it’s impossible. ### 4/5 — 楽しく遊んでます *2025-10-19, version 03.00.01* 色々あった時にアプリサポートのCafeで丁寧に教えてくれました。優しかったです。 あ、機械翻訳のスペイン語とiOSのオフライン 買い切り買えないバグには気を付けて下さい。 最近、26、41、81、121年目の際に、 タリスマンオーブが 抽出し切っても望みのオーブ 出ない事が多発するので…… 特に競争モードの81、121年目で 外れた場合やり直しが疲れます……。 相応に抽出上限も上がってでも、 上限上がって欲しいです……。 ### 5/5 — It’s a good game *2025-10-19* There are a lot of different ways to go about surviving and protecting yourself whiling pillaging and it is fun. ### 5/5 — Love this *2025-10-11, version 03.00.01* I love this game it’s amazing and love the gameplay ### 5/5 — Gd *2025-07-25, version 02.27.05* Rlly fun ### 4/5 — Potential *2025-07-13* The game is a good dungeon boss game just missing some things to make it the next level like a special thing for having a diffent types in the room or maybe room traps because of the type u have and more characters and events to get things don’t give up on the game ### 5/5 — hay *2025-04-10, version 02.27.05* game cực hay, bánh cuốn ## Frequently asked questions about CDO2 ### What is the main goal of CDO2: Dungeon Defense? The main goal is to keep your dungeon running for as long as possible by deploying monsters and strategic defenses to repel waves of heroes. You aim to survive for 50 years to clear the game, with options to continue in Challenge Mode. ### How many different monsters are available in CDO2: Dungeon Defense? There are over 90 different monsters, each with unique attributes based on their type, race, and role. Players can summon monsters to create synergistic combinations. ### Does CDO2: Dungeon Defense have offline play? The provided data does not specify if CDO2: Dungeon Defense supports offline play. However, its competitive mode suggests an online component for ranking and interaction with other users. ### What kind of items can be used in CDO2: Dungeon Defense? The game features over 80 kinds of equipment for individual monsters, over 30 kinds of Totems for dungeon rooms, and over 90 kinds of Relics that affect the entire dungeon, all requiring strategic choices. ### How does the competitive mode in CDO2: Dungeon Defense work? The competitive mode allows players to compete against others without a separate clear condition. Rewards are distributed every Monday, and the ranking is initialized weekly with different conditions. ### Is CDO2: Dungeon Defense suitable for all ages? CDO2: Dungeon Defense has an age rating of 12+, indicating it contains content that may not be suitable for younger children. It is available on iPhone, iPad, and iPod. ### How often is CDO2: Dungeon Defense updated? The latest version of CDO2: Dungeon Defense is 03.00.03, last updated on March 9, 2026. This indicates a recent update, though the frequency of future updates is not specified. ### What is the user sentiment for CDO2: Dungeon Defense? CDO2: Dungeon Defense has a high rating of 4.7 stars from 34 ratings, suggesting positive user sentiment. Users appreciate the strategic depth and monster variety. ## Version history (last 5 releases) ### 03.01.071 — 2026-08-24 v.03.01.07 [Bug Fixes] - Fixed an issue where the levels of Undead units were applied above the normal limit under certain conditions. ### 03.01.061 — 2026-08-10 v.03.01.06 [Misc] - Improved Spn, Br, and Fra language localization. - Improved internal logging logic. ### 03.01.051 — 2026-07-22 v.03.01.05 [Misc] - Updated the in-app purchase module. ### 03.01.05 — 2026-06-15 v.03.01.05 [Misc] - Updated the in-app purchase module. ### 03.01.04 — 2026-06-08 [Misc] - Adjusted ad settings. ## Apps similar to CDO2 | App | Rating | Price | Category | | --- | --- | --- | --- | | [Dark Clan: Squad Idle RPG](https://appshunter.io/ios/app/dark-clan-squad-idle-rpg/id6468973299) | 4.7 (598) | Free | Games | | [Videogame Guardians](https://appshunter.io/ios/app/videogame-guardians/id1281397124) | 4.7 (1,869) | Free | Games | | [Delusion: Tactical Idle RPG](https://appshunter.io/ios/app/delusion-tactical-idle-rpg/id6496342351) | 4.5 (149) | Free | Games | | [Idle Kingdom Defense](https://appshunter.io/ios/app/idle-kingdom-defense/id1589164531) | 4.6 (8,348) | Free | Games | | [King God Castle: Luminous Fate](https://appshunter.io/ios/app/king-god-castle-luminous-fate/id1526791430) | 4.6 (1,900) | Free | Games | | [32 Heroes: 8 Party Idle RPG](https://appshunter.io/ios/app/32-heroes-8-party-idle-rpg/id6737118316) | 3.8 (44) | Free | Games | ## Related topics [dungeon defense](https://appshunter.io/ios/topics/dungeon-defense) · [dungeon builder](https://appshunter.io/ios/topics/dungeon-builder) · [dungeon maker](https://appshunter.io/ios/topics/dungeon-maker) · [dungeon squad](https://appshunter.io/ios/topics/dungeon-squad) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*