Operation: Outbreak Idle
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About Operation: Outbreak Idle
Operation: Outbreak Idle is about surviving increasingly dangerous waves of zombies in a world overrun by endless hordes. You build defenses, unlock weapons and skills, and upgrade your abilities to see how long you can last against thousands of undead.
Fight the hordes
You battle massive groups of zombies with an expanding arsenal of weapons and skills. Unlock new abilities and combine them to create different builds and survival strategies, including the deadly Circular Saw, which cuts through waves with its spinning blade.
Upgrade and call support
Upgrades can increase your damage, improve efficiency and strengthen your defenses as the hordes grow larger and stronger. You can also call in B2 bomber strikes to clear large zombie formations and create breathing room, or deploy an attack helicopter to patrol the battlefield and bombard approaching enemies.
Frequently asked questions
The best price for Operation: Outbreak Idle is $3.37 at Kinguin. That is 32% less than on Steam, where it costs $4.99. 2 shops have an offer that activates in your country.
Some are. This page only shows offers that activate in your country; offers for other regions, or with no stated region, are left out. To see the offers for another country, change your country at the top of the page.
Every key we list activates on Steam. Redeem the key there and Operation: Outbreak Idle stays in your library for good.
Yes, with a small risk. Publishers create keys to sell in other shops, which is why a key can cost less than in the official store, and once you activate it the game is yours to keep, just like a store purchase. On average 1–2% of keys fail, so check the shop's buyer protection before you buy: the official store does not refund keys bought elsewhere.
The minimum requirements for Operation: Outbreak Idle are: Windows 10, GeForce GTX 750 Ti, Intel Core i3-9100, 8 GB RAM, 1 GB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Operation: Outbreak Idle is a single-player game.
Yes. Operation: Outbreak Idle is the full base game. You need nothing else to play it.
Buy Operation: Outbreak Idle 32% cheaper than on Steam.
Operation: Outbreak Idle is available for 32% less in shops such as Kinguin.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.
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