Screenshots
Watch trailer on Steam ↗Operation: Outbreak Idle
DeadLogics · Published by DeadLogics
Positive — 92% positive (25 reviews) · 20 achievements
Last updated 28 Sept 2026
Command automated military defenses, upgrade your fortress, and survive massive zombie waves in this action-packed idle defense game. Build powerful defenses, unlock upgrades, and hold the line against endless undead hordes.
£4.13
£4.59Lowest price we've ever recorded
View on SteamPrices can lag the live Steam store — always confirm before buying.
Price history
Casual · 2026 · More under £5 games
About this game
Fight for survival in a world overrun by endless zombie hordes. Build your defenses, unlock devastating weapons, and upgrade powerful skills as you battle increasingly dangerous waves of the undead.
Call in overwhelming support such as B2 bomber strikes and attack helicopters to clear massive groups of zombies. Unlock deadly technologies like the Circular Saw, discover new abilities, and create powerful builds through a deep progression system.
As the hordes grow larger and stronger, every upgrade matters. Strengthen your arsenal, adapt your strategy, and see how long you can survive against thousands of relentless zombies.
🔥 Unlock New Skills
Expand your arsenal with powerful new abilities. Experiment with different combinations and create unique strategies for survival.
🧟 Obliterate Massive Zombie Hordes
Face thousands of undead enemies and unleash chaos across the battlefield. Watch entire hordes fall under your growing arsenal of weapons and skills.
☢️ Devastating B2 Airstrikes
Turn the tide of battle with powerful B2 bomber strikes. Erase massive zombie formations and create breathing room when the battlefield becomes overwhelming.
🚁 Call in Helicopter Support
Deploy an attack helicopter to patrol the battlefield and bombard approaching hordes with explosive firepower.
📈 Upgrade Your Power
Invest in upgrades to increase damage, improve efficiency, and strengthen your defenses against ever-growing zombie threats.
⚙️ Unlock the Circular Saw
Discover and unlock the deadly Circular Saw. Slice through waves of zombies with a relentless spinning blade designed for maximum destruction.
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10/11 (64-bit)
- Processor: Intel Core i3-9100 / AMD Ryzen 3 3200
- Memory: 8 GB RAM
- Graphics: NVIDIA GTX 750 Ti / AMD Radeon RX 550 or equivalent with 2 GB VRAM
- Storage: 1 GB available space
- Sound Card: DirectX compatible with surround sound support
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 10/11 (64-bit)
- Processor: Intel Core i5-10400 or equivalent
- Memory: 16 GB RAM
- Graphics: NVIDIA GTX 1660 super or equivalent
- Storage: 1 GB available space
- Sound Card: DirectX compatible with surround sound support
Supported Languages
Latest news
AnnouncementsOfficial
500 Copies Sold in 1 Week! 🎉
500 copies sold in 1 week! 🎉Thank you so much for all the support! It’s been an incredible journey so far, and I’m really excited for what’s coming next.Phase 1 is almost ready and should be live next weekend!More updates coming soon. 🧟♂️💚Read full article on Community Announcements (DeadLogics)Patch NotesOfficial
Patch Update 1.0.2
Changes Made• Fixed an issue where achievements were not unlocking properly. If your achievement is still not unlockedAfter updating to this build, please play the game for a little while. This should give Steam enough time to update and trigger the achievement. Also, please make sure:• Steam is running in the background before launching the game. • After starting the game, check if the Steam Overlay notification appears in the bottom-right corner. Steam can unlock achievements while playing offline, but sometimes Steam may not properly recognize or sync the achievement. Keeping Steam running and making sure the Steam Overlay is active should help it sync correctly. Thank you for your patience and for reporting the issue! ❤️Read full article on Community Announcements (DeadLogics)AnnouncementsOfficial
🧟 FREE UPDATES - Operation Outbreak Idle Future Roadmap
🧟 FREE UPDATES - Operation Outbreak Idle Future Roadmap The outbreak is only getting started. 🧟♂️ Thank you to everyone who has played Operation Outbreak Idle, shared feedback, reported bugs, and supported the game since launch! 🛠️ Phase 1 - Month 1Our first priority is polishing the current experience:• Bug fixes • Steam Cloud Save • Game balancing • Performance improvements • Arena camera zoom in/out • Controller support🧟 Phase 2 - Month 2Then we’re looking at expanding the outbreak:• More maps • More skill nodes • More evolved weapons • More chaotic zombies • Optimized 3D models • Improved visual quality for low-end devices • Planning for Android / iOS / Linux releasesThese updates will be free for everyone who owns the game.The roadmap may evolve based on game performance, player feedback, and development priorities, so some plans may change as development continues.If you’re enjoying the game, leaving a Steam review really helps us and lets us know what you’d like to see next. ❤️The outbreak isn't slowing down. More chaos is coming.🧟 Operation Outbreak Idle Survive. Upgrade. Evolve. Repeat.Read full article on Community Announcements (DeadLogics)Patch NotesOfficial
Patch Update 1.0.1
Changes Made • Added a scrollbar UI to the Skill Tree window • Fixed the Operation Outbreak achievement bug • Fixed an issue where some Indra Tempest evolved abilities would not spawn immediately after unlocking.Read full article on Community Announcements (DeadLogics)
