77%Strong matchIDUN - Frontline Survival
79%31579% positive reviews, Mostly Positive across 315 reviews·3D · Building
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Step into the arena with IDUN: Prologue, a thrilling slice of our full-length defense RTS where real-time strategy meets rogue-lite chaos. Fight your way through unique mission objectives with overwhelming swarms of enemies.
IDUN Prologue - Frontline Survival
SteamIDUN: Prologue is a single-player action RTS with a story campaign. The prologue lets you try a portion of the main game with only a limited number of turrets, tools, and heroes.
Step into the arena with IDUN: Prologue, a thrilling slice of our full-length defense RTS where real-time strategy meets rogue-lite chaos. Get a sneak peek at the intense arena mode, where you’ll face overwhelming enemy swarms with a diverse arsenal of turrets, tools, and heroes—just a taste of the full IDUN game that awaits.
Each run throws you into procedurally generated arenas filled with unpredictable challenges, unique mission objectives, and an ever-evolving environment. Adapt quickly as massive hordes flood the screen, and leverage destructible terrain to your advantage. With branching paths, powerful upgrades, and varied mission modifiers, every playthrough delivers a fresh and dynamic experience.
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.

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.

Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
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The best games like IDUN Prologue - Frontline Survival are IDUN - Frontline Survival, Broken Universe - Tower Defense, Tower Dominion, Void Destroyer, and Northend Tower Defense.
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