
Game Overview
A dream home becomes a claustrophobic trap in this top-down pixel horror story, where ordinary worker Akin discovers that the property’s history refuses to stay buried. The house is tied to Mantis, a serial killer whose fractured past slowly bleeds into Akin’s present, turning familiar rooms into sources of dread and uncertainty. Rather than relying on cheap shocks alone, the game leans into psychological unease, using its retro presentation to make every dark corridor and unsettling clue feel deliberately placed. The mood is grim, intimate, and increasingly unstable as the boundaries between memory, crime, and reality begin to blur.
Players guide Akin through the house and its surrounding mysteries, searching rooms, examining evidence, and piecing together the story behind its former residents. Progress depends on solving demanding environmental puzzles, finding key items, and surviving situations designed to create pressure rather than empower the player. Exploration is central to the experience: seemingly minor notes, hidden paths, and overlooked details can reveal more about Mantis while opening routes toward alternative conclusions. The narrative generally follows a focused sequence, but careful players can uncover secrets that change how the final events play out.
Its strongest feature is the contrast between simple pixel-art visuals and the disturbing material they portray; the overhead perspective creates a detached look at first, then makes the home feel like a hostile maze under constant scrutiny. Immortal Mantis favors atmosphere, investigation, and puzzle-solving over fast action, making it a better fit for players who enjoy being unsettled by implication and discovery. The branching ending structure also gives completion-minded horror fans a reason to revisit areas and inspect every suspicious detail. Fans of indie psychological horror in the vein of retro survival games, especially those who appreciate darker narratives and challenging puzzles, are likely to find plenty to chew on here.
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 Immortal Mantis 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
- Requires a 64-bit processor and operating system
- OS: Windows 7
- Processor: I3
- Memory: 2 GB RAM
- Graphics: Any
- DirectX: Version 11
Setup Guide & Troubleshooting
How do I fix missing DLL errors for Immortal Mantis?
After extracting Immortal Mantis, 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 214.36 MB — 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 11. 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.