Ammossum
Overview
Build an endlessly upgradable weapon! Evolve projectiles into unstoppable firepower in this action roguelike. Fight through hordes of infected beasts, hunt down the source of the plague, and feel the thrill of bloody shootouts filled with bullets, explosions, and acid. Can you survive the madness?
SteamMixed (60%)
100 Steam user reviewsMetacriticNot rated
Screenshots & media
Features, requirements and screenshots describe the Steam PC version. Other stores and editions may differ.
Ammossum screenshot 1
All source screenshots (13)
Gameplay
Find Ammossum gameplay on YouTube ↗
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How to get the game
Steam
End date not supplied
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How to claim & conditions
How to claim
- Open the retailer offer using the deal link.
- Confirm the edition, activation platform, region and final price.
- Complete the purchase with the retailer if the offer suits you.
Eligibility
- PC offer.
- Country availability and activation platform are determined by the retailer.
- Pricing data is in US dollars.
Costs & conditions
- The listed price is the game price before any retailer taxes or other checkout charges.
- Confirm the final total on the retailer’s site.
- Offer checked
- Oct 12, 2026 10:22 UTC
CheapShark onSale flag and current/regular prices from its official API.
About the game
- Developer
- West Glade
- Publisher
- Yahaha Games
- Released
- Sep 28, 2026
Description & review sources
- Build an endlessly upgradable weapon!
- Evolve projectiles into unstoppable firepower in this action roguelike.
- Fight through hordes of infected beasts, hunt down the source of the plague, and feel the thrill of bloody shootouts filled with bullets, explosions, and acid.
- Can you survive the madness?
Read full description
The world is falling apart, and your family has been taken from you. The infected swarm the railroads, the plague spreads, and the only way forward is through fire and chaos. Keep the train moving, search for answers, and face the truth waiting at the end of the line.
Why settle for ordinary guns when you can craft pure chaos? Combine and evolve your projectiles—nest them within each other, fuse them into devastating combos, and fill the battlefield with nonstop explosions. The possibilities are endless, and so is the firepower!
Your train isn’t just a ride—it’s part of your build. Each railcar adds unique bonuses, from economy to battlefield control. Pick the right upgrades, mix the synergies, and fine-tune your setup to turn every fight in your favor.
Every run brings discoveries. Unlock weapons, find hidden mechanics, and expand your arsenal with each attempt. The more you play, the stronger—and wilder—your options become. Experiment, and push your limits with each new attempt—because no two runs are the same!
- Developer
- West Glade
- Publisher
- Yahaha Games
- Released
- Sep 28, 2026
Ratings & review sources
SteamMixed (60%)
100 Steam user reviewsMetacriticNot rated
System requirements
Features, requirements and screenshots describe the Steam PC version. Other stores and editions may differ.
Windows
Minimum
Minimum:- Requires a 64-bit processor and operating system
- OS *: Windows 7 x64
- Processor: Intel Core i3-4160 / AMD FX-4300
- Memory: 2 GB RAM
- Graphics: GeForce GT 640 / Radeon HD 7750 / Intel UHD Graphics 620
- DirectX: Version 11
- Storage: 2 GB available space
Recommended
Recommended:- Requires a 64-bit processor and operating system
- OS: Windows 10 x64
- Processor: Intel Core i5-7600k / AMD FX-9590
- Memory: 8 GB RAM
- Graphics: GeForce GTX 1060 / Radeon R9 390X / Intel Arc A750
- DirectX: Version 11
- Storage: 2 GB available space
macOS — not supported
The Steam PC metadata lists no support for this operating system.
Linux — not supported
The Steam PC metadata lists no support for this operating system.
Accounts, launcher & DRM
Store account and country availability should be checked with Steam.
Check retailer
- Launcher not supplied
- DRM not supplied
Features & game information
Features, requirements and screenshots describe the Steam PC version. Other stores and editions may differ.
Play modes
- Single-player
Controller details
- DualShock Controller Support
- DualSense Controller Support
Steam features
- Steam Achievements
- Steam Cloud
- Family Sharing
Controller & mod support
- Controller support
- full
- Mod support
- Not specified
Game details
- Genres
- Action
- Indie
- Developer
- West Glade
- Publisher
- Yahaha Games
- Released
- Sep 28, 2026
- Content type
- game
- Operating systems
- windows
- Achievements
- 91
Languages & audio
- English
- Russian
- Simplified Chinese
- French
- Japanese
- Norwegian
- Portuguese - Brazil
- Spanish - Latin America
Related editions & add-ons
Steam purchase options; availability and pricing are confirmed on Steam.
Sources, updates & publisher notice
- CheapShark Oct 12, 2026 16:21 UTC
- Steam Spy Oct 12, 2026 08:04 UTC
- Steam Store Oct 12, 2026 08:04 UTC
Steam Spy playtime estimates
- Average: unavailable
- Median: unavailable
Source zero values are not a reliable game-length estimate.
Community tags describe the game. Source timestamps indicate when the stored data was checked.
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