Ammossum
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About Ammossum
Ammossum is about keeping a train moving through a world overrun by the infected, while searching for answers after your family is taken and facing the truth at the end of the line. The plague spreads, and the journey leads through fire and chaos.
Build your firepower
You craft projectiles by combining and evolving them, nesting one within another or fusing them into explosive combinations. You can also unlock weapons and discover hidden mechanics with each run, expanding your arsenal and options for future attempts.
Upgrade the train
Each railcar adds its own bonuses, ranging from economy to battlefield control. Choose upgrades and combine their synergies to shape your setup for each fight. Every run brings discoveries, and no two runs are the same.
Frequently asked questions
The best price for Ammossum is $1.43 at Kinguin. That is 88% less than on Steam, where it costs $12.99. 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 Ammossum 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 Ammossum are: Windows 7, GeForce GT 640, Intel Core i3-4160, 2 GB RAM, 2 GB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Ammossum is a single-player game.
Mostly, yes. Valve rates Ammossum as Playable on the Steam Deck: it runs, but may need some manual setup.
Buy Ammossum 88% cheaper than on Steam.
Ammossum is available for 88% less in shops such as Kinguin, Difmark, or GameBoost.
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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