Game Overview
Hell becomes a neon-stained shooting gallery after a reckless reading of the Necronomicon leaves its protagonist stranded among demons, vengeance, and one very personal score to settle. KILLAMITY is a compact retro FPS with bullet-heaven escalation, built around the pleasure of beginning as a fragile revolver user and ending as an absurdly overpowered murder machine. Its tone is knowingly trashy B-movie horror comedy: loud, profane, gory, and more interested in momentum and punchlines than lore-heavy seriousness. A roughly 45-minute story campaign gives the chaos a destination, culminating in a showdown that makes full use of the hero’s ridiculous finger-gun powers.
Every arena locks progression behind a fixed demon quota, so the immediate goal is always to wipe out enough enemies to open the way forward. Sliding, jumping, ricocheting off environmental objects, and preserving a kill streak keep the pace high, while faster clears mean more money for the vending machines between maps. Those machines offer nine upgrade categories, covering essentials such as speed, regeneration, life steal, ammunition capacity, jump power, and multi-shot spread; crucially, none of them has a limit, allowing runs to become spectacularly broken. Combat starts with simple run-and-gun revolver shooting but quickly turns into crowd-clearing chaos as stacked upgrades transform movement and firepower, while player choices involving innocent targets affect which ending appears.
What separates KILLAMITY from more polished retro shooters is its commitment to letting the build system run wild rather than carefully balancing every advantage away. The chunky old-school presentation and aggressive metal soundtrack suit its deliberately cheap, nasty grindhouse attitude, and Endless Mode gives players a place to test builds against increasingly overwhelming waves after the campaign ends. It lacks the depth and precision of Doom or the elaborate run variety of Vampire Survivors, but that is hardly the point: this is for players who want a short, rowdy FPS built around escalating into an uncontrollable demon blender.
Screenshots
Installation
- Select the Download button at the top of this page to open UploadHaven.
- On UploadHaven, wait for any countdown, then select Free Download. Optional: UploadHaven Pro for faster downloads.
- When complete, extract the archive to a KILLAMITY folder using 7-Zip.
- Open the extracted folder and start the game normally.
- For errors, check Setup Guide & Troubleshooting below. Keep your security software enabled.
System Requirements
- OS: Windows 11
- Processor: Ryzen 5 5600G
- Graphics: GeForce GTX 1660 SUPER
- Storage: 2 GB available space
- Additional Notes: May have trouble with linux devices
Setup Guide & Troubleshooting
How do I fix missing DLL errors for KILLAMITY?
After extracting KILLAMITY, navigate to the _Redist or _CommonRedist folder inside the game directory and install DirectX, Vcredist, and any other dependencies included.
What should I do if the downloaded file is corrupted?
The full archive is 1.66 GB — make sure your download completed fully before extracting. Use 7-Zip to extract the files. If you still see a "file corrupted" error, re-download and try again.
Do I need to run the game as administrator?
Usually, no. Start the game normally from the extracted folder. If you see a permissions or save error, check that the folder is writable and follow the game's documented fix. Only grant administrator access when a trusted game's specific setup requires it.
How do I update my GPU drivers for this game?
The game won't launch — what should I try?
Check that extraction completed and your PC meets the system requirements. Note any error message before choosing a fix. If it identifies a missing runtime, install the required DirectX components or Microsoft Visual C++ Redistributable from Microsoft.
My antivirus is blocking the game — is it safe?
A warning needs to be investigated; the download source alone cannot confirm that a file is safe. Keep your security software enabled and review the detection details. Do not run or restore a flagged file unless you have verified that it is a false positive. If you are unsure, leave it quarantined.