
Game Overview
Feudal Japan becomes a demon-haunted killing ground where a lone samurai stands between the living world and Yomi, the realm of the dead. Onikira: Demon Killer is a fast, demanding 2D action-platformer that borrows the aggression and combo-minded combat of character-action games, then compresses it into tightly designed side-scrolling stages. You play Yamazaki Jiro, cutting through supernatural armies as crumbling temples, lava pits, spikes, and mechanical hazards turn every encounter into a dangerous arena. The tone is pulpy and mythic rather than solemn, with a constant emphasis on stylish violence and barely controlled momentum.
Combat revolves around chaining attacks, launching enemies, juggling them in mid-air, and choosing the weapon that fits the situation. Jiro has access to four distinct weapons and more than forty moves, so a player can favor direct katana strikes, heavier crowd-clearing options, aerial control with the naginata, or a more cautious ranged approach. Platforming is not just downtime between fights: wall jumps, air dashes, grappling-hook swings, and weapon-specific movement tools help you cross hazards while keeping a combo alive. Seven stages provide escalating enemy groups, environmental traps to exploit, mini-bosses, and larger boss encounters that demand sharper timing and better use of Jiro’s full toolkit.
What makes Onikira stand out is how naturally its traversal systems feed back into combat. Knocking foes into pits or spikes is useful, but collapsing a structure on a crowd or pulling an enemy into the air before finishing them creates the kind of improvisation usually associated with 3D action titles. Its side-on perspective keeps the controls accessible, while the speed, air juggling, and move variety reward players who enjoy practicing routes and mastering encounters. Fans of Ninja Gaiden, Bayonetta, or old-school arcade brawlers should find plenty to like, especially if they want a focused single-player action game with more mechanical depth than its indie presentation initially suggests.
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 Onikira - Demon Killer 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 Vista SP2/ Windows 7
- Processor: Intel Core 2 Duo 1.8GHz or AMD Athlon X2 64 2GHz
- Memory: 2 GB RAM
- Graphics: 256 MB ATI HD3650, 256 MB nVidia 8800 GT, or Intel HD 3000 integrated graphics
- DirectX: Version 9.0c
- Storage: 2 GB available space
- Sound Card: DirectX 9.0c-compatible sound card
Setup Guide & Troubleshooting
How do I fix missing DLL errors for Onikira – Demon Killer?
After extracting Onikira – Demon Killer, 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 1.07 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, including Version 9.0c. 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.