Announcement
Gamepad Update
Gamepad support was already added some time ago, but, but lacked visual indications, so they were added at the beginning of the game and during any time in the game by holding the R2/RT button.
Steam
Immortal Mantis: Revenge
Also known as Immortal Mantis: Revenge, immortal mantis revenge, immortal-mantis-revenge
Solve puzzles while uncover two points of view of a story. The serial killer known as Mantis commits crimes freely while Sergei, his adopted brother, is in charge of preventing his mysterious objective from being completed.
Last update
18 May 2026
Players now
0
Original sources
1
Latest update
Latest updates
Update history
Browse past updates and patch notes for this game.
- February 2024
- General improvements in the hospital and more!Hospital improvements: - The room indication book is now at reception. To be closer to the place where the player gets the keys; - Side arrows indicate that the player can enter the offices, many people don't realize th…
- Improvements to hospital stealth gameplay and more!Changes at the hospital: Hospital elevator bugs: - Character crashed when trying to leave the interaction (Pressing C or selecting current floor); [SOLVED] - Active interaction during the elevator transition, which coul…
- SAFE PUZZLE CHANGESDue to the low number of players who achieved the "Morphine" achievement (acquired by completing the safe puzzle) I decided to make new changes to this puzzle. In order to make it easier. Now the safe contains all the n…
- NERF IN THE SAFE PUZZLE AND MORE CHANGESHospital: - Safe Puzzle easier. Before, the player would need to understand the logic behind the progression to extract the 3 numbers. Now they are provided directly, along with their colors. There is a new text indicat…
- VCR PUZZLE IMPROVEMENTS AND MORE!VCR Puzzle: - Previously, to find the correct position of the plugs the player needed to check that the yellow/red wires were cut and replaced (looking at the tape on the cables), this was causing a lot of confusion amo…
- SAFE PUZZLE - IMPROVEMENTS/BUG FIXESBUG THAT PREVENTED THE INSERT OF SOME NUMBERS FIXED: Emergency patch release, due to a bug that caused some numbers not to be computed in the safe, preventing the completion of the puzzle and progression in the game. Ap…
- BIG UPDATE - TO IMPROVE THE EXPERIENCE FOR EVERYONE ! :)Bugs fixed/Improvements Hospital Safe Puzzle: - It was too difficult, some extra tips were added to improve the experience - A guide made by me has been added to the community in case you are REALLY stuck - When interac…
- Emergency update - VCR puzzleThere's a bug, in the english version, preventing to progress, none of the tapes were valid and the puzzle always failed.
Gallery
In-game media
Achievements
Community progression
Top picks from 18 Steam achievements, sorted by player unlock rates.
- IntroGet started with the story85.0%
- SabotageNo more light78.0%
- MaintenanceRepair the VCR66.0%
- Nurse KillerKill your first nurse64.3%
- Security GuardYou feel no pain!53.2%
- MorphineDoes it make you dizzy?52.6%