
A defense RTS where you can move turrets at will. Extract resources, upgrade technology, and defend against enemy swarms in a gripping space campaign. Hold the line, set up your turrets, and brace for screen-filling hordes!
Modeled estimate, not a reported figure. How we estimate →
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 0.43/day in the week to Aug 25 → 0.57/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 25 chart moves that followed a price cut of more than 20% went a median of 10 places towards #1, and the 2,413 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
About
Welcome to IDUN, a new breed of defense RTS where explosive single-player action meets a gripping story campaign.
Engage in a compellingly chaotic combination of RTS action and tactical tower defense to wipe out relentless alien swarms overwhelming the screen. Command a varied arsenal of combat tools in real-time, from repositionable drag-and-drop turrets to point-and-shoot orbital cannons, leveraging their strengths to overcome challenging scenarios.
Explore several diverse modes and complete fist-pumping missions, including defending the collection base, escorting nuclear vehicles, and protecting mining carts. Execute a strategic plan of defense by deploying destructive tanks, blade-spinning fans, flesh-melting turrets, and sturdy barriers to block vicious waves of extraterrestrial vermin.
Break free from traditional tower defense gameplay—deploy and reposition your units freely, taking full command of the battlefield.
Experience ever-changing missions as the battle against relentless enemy swarms reshapes the terrain. Destruction and enemy remains create new challenges and opportunities, demanding constant tactical adaptation.
Advance through a robust tech tree, upgrading your space station and unlocking devastating turrets, elite troops, and tactical tools to outlast the endless onslaught.
Rogue-lite elements ensure every run is unique, filled with fresh challenges, unpredictable encounters, and new ways to master survival.
Dive into a fully voiced story where the relentless attacks are just the beginning. Join the crew as the story unfolds in unexpected and game-changing directions.
Enjoy the freedom to play IDUN however you like! The game offers seamless support for Mouse & Keyboard, Gamepad, Touch, and is now fully optimized for Steam Deck.
Take advantage of extensive customization options for both visuals and controls, ensuring the perfect gameplay experience tailored to your preferences.
Engagement
Reviews
Themes across 62 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
First of all, why use AI to make the scripting & dialogue? It's poorly written & absolutely annoying. 2nd, Technology tree for upgrades are too simple & limited, there's isn't much customization 3rd , game play is too repetitive and it gets boring quickly.
资源系统有很大问题,连续出战好几次,资源还不够升级一个炮台的一个属性,没有让人玩下去的欲望
Great game. Managed to scratch that RTS-Tower Defense-Base Management itch that I've been scratching for a long time. lol Gameplay: Great Story: Is actually good, a parent sacrificing oneself to save an offspring. Controls: Good Graphics: Good Length: Good Cutscenes: Alright Characters: Good Game Modes: I really like the Mech Missions, reminded of Helldivers 1. lol Progression might seem slow, but you can just choose what you want to heavily upgrade first. I can get by with Hard Missions with one fully upgraded Hero and Turret plus the SkyGun Mk. II.
Media

Related
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Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English*, French, German, Spanish - Spain, Japanese, Simplified Chinese, Traditional Chinese, Korean, Russian*languages with full audio support
Hours played at review time, across 62 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
이정도 퀄리티에 컨트롤 하는 재미까지 가성비 ㅆㅅㅌㅊ
Залипательно. Чем-то напоминает раш зергов из старкрафта, идея с заражением одной из героинь от туда же. Миссии на три-пять минут, но на некоторых можно и на несколько часов зависнуть при желании проверить, когда же тебя вынесут) Из минусов - медленный сбор ресурсов, очень долгая прокачка и накопительные достижения, где надо фармить, фармить и фармить. Но благо для этого есть куча уровней. 1370 прошел и фиг знает сколько их всего, хотя они похоже генерируются (не обязательно проходить по порядку, просто щелкаешь на доступную миссию).
Started off good, got bored quickly honestly... missions are really short and the easy difficulty level is to easy .. yet the middle setting is a massive jump up.. lost interest honestly.
一款,快捷餐游戏,有剧情,但只占总游玩时间一点点,局内是肉鸽风格地去获取新塔,还有快节奏(但没啥变化)刷各种地图,太多无意义的地图打起来没什么成就感,场外升级会比较难,需要很多回合才凑到足够的建筑资源。 就打起来消磨时间,但是没啥成就感。 10分的话给个6分及格,建议打对折以下入。
Fantastic game. I got it on sale, and have been really enjoying it. Soldier printer is absurdly good.
炮塔可挪动,带点策略,非常上头,爽就完了。没有遇到什么bug。
Netter Mix aus Tower Defense und RTS. Leider trägt das Gameplay nur für kurze Zeit. Danach wird es extrem repetetiv. Unter der Haube leider zu wenig Spieltiefe und Abwechslung.
Players by region
Where this game's players are, estimated from review languages.
Players also reviewed
The games this title's players most often review too — audience affinity.
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