Quadrillion
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About Quadrillion
Quadrillion is a first-person shooter set in a nightmarish alternate version of World War I. You fight undead soldiers, monstrous creatures and supernatural forces in grim trenches, abandoned cities and distorted landscapes. The story unfolds as a vivid nightmare experienced by the protagonist, where personal fears collide with the horrors of war.
Story and setting
The game combines real historical elements with imaginative horror, and its story draws on true events while adding creative twists. Its historical details include real photographs, promotional posters, period-accurate weapons and uniforms. You encounter shadowy forces, deadly secrets and supernatural phenomena as you navigate the war-torn world.
Combat and atmosphere
You fight against waves of undead soldiers and brutal abominations while confronting the horrors around you and the protagonist’s inner demons. The sound design uses eerie soundscapes to build tension in the trenches and other locations.
Frequently asked questions
The best price for Quadrillion is $4.99 at Steam. 5 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 Quadrillion 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 Quadrillion are: Windows 10, GeForce GTX 660, Intel Core i3-1011U, 4 GB RAM, 2 GB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Quadrillion is a single-player game.
Yes. Quadrillion is the full base game. You need nothing else to play it.
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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