Rat Simulator

Released: Jul 27, 2017
Platforms: Windows
Last updated: 04 Sep 2026, 07:56 GMT

Updates & announcements

14 posts

29 Dec 2017Developer post
Stability Patch v1.11
Changelog Fixed a bug with upgrades not working when playing the game due to localization text. Fixed a bug where the game doesn't start properly in easy mode sometimes Adjusted food that are small in size to require fewer times to eat so that the food size won't get too small an
Changelog

Fixed a bug with upgrades not working when playing the game due to localization text.
Fixed a bug where the game doesn't start properly in easy mode sometimes
Adjusted food that are small in size to require fewer times to eat so that the food size won't get too small and be difficult to eat.
Pestman AI Fire spray now checks for line of sight, hiding in objects will no longer cause you to get damaged by fire spray.
You can now exit out of a Rat Squeak animation by moving, previously the rat movement was locked due to the animation. This has a default cooldown of 2.6 seconds.
Reduced key hold duration from 3 seconds to 2 seconds
Reduced disinfector hold duration from 4 seconds to 2.5 seconds.
Increased damage by thrown objects to pestman boss during boss fight
Your rat companion will no longer slide down slopes if they are stationary.
Your rat companion will now have an easier time climbing up slopes.
Fixed a rare bug when the humans eat your poisoned food
Made adjustments so that it is easier to pick up food / interact with objects.
Original post
29 Dec 2017Developer post
Stability Patch v1.11
Changelog Fixed a bug with upgrades not working when playing the game due to localization text. Fixed a bug where the game doesn't start properly in easy mode sometimes Adjusted food that are small in size to require fewer times to eat so that the food size won't get too small an
Changelog

Fixed a bug with upgrades not working when playing the game due to localization text.
Fixed a bug where the game doesn't start properly in easy mode sometimes
Adjusted food that are small in size to require fewer times to eat so that the food size won't get too small and be difficult to eat.
Pestman AI Fire spray now checks for line of sight, hiding in objects will no longer cause you to get damaged by fire spray.
You can now exit out of a Rat Squeak animation by moving, previously the rat movement was locked due to the animation. This has a default cooldown of 2.6 seconds.
Reduced key hold duration from 3 seconds to 2 seconds
Reduced disinfector hold duration from 4 seconds to 2.5 seconds.
Increased damage by thrown objects to pestman boss during boss fight
Your rat companion will no longer slide down slopes if they are stationary.
Your rat companion will now have an easier time climbing up slopes.
Fixed a rare bug when the humans eat your poisoned food
Made adjustments so that it is easier to pick up food / interact with objects.
Original post
31 Oct 2017Developer post
Performance Patch Version 1.1
Performance patch for Rat Simulator. Various Performance Optimizations Added options to set resolution & fullscreen in game Added anti aliasing to graphics settings (TAA / FXAA) Improved default graphics (Anti-aliasing enabled by default) Removed default unity dialog player o
Performance patch for Rat Simulator.

Various Performance Optimizations
Added options to set resolution & fullscreen in game
Added anti aliasing to graphics settings (TAA / FXAA)
Improved default graphics (Anti-aliasing enabled by default)
Removed default unity dialog player on launch
Upgraded unity version from 5.5 to 5.6
Scenes are now loaded additively via a loading screen
Fixed Localization UI text issues
Original post
31 Oct 2017Developer post
Performance Patch Version 1.1
Performance patch for Rat Simulator. Various Performance Optimizations Added options to set resolution & fullscreen in game Added anti aliasing to graphics settings (TAA / FXAA) Improved default graphics (Anti-aliasing enabled by default) Removed default unity dialog player o
Performance patch for Rat Simulator.

Various Performance Optimizations
Added options to set resolution & fullscreen in game
Added anti aliasing to graphics settings (TAA / FXAA)
Improved default graphics (Anti-aliasing enabled by default)
Removed default unity dialog player on launch
Upgraded unity version from 5.5 to 5.6
Scenes are now loaded additively via a loading screen
Fixed Localization UI text issues
Original post
27 Jul 2017Developer post
Version 0.14 is now out!
Version 0.14 is a big update that introduces major features and this will mark the full release of Rat Simulator on Steam. We also added in a General FAQ Page for the game. Main Updates Boss Fights Unique Voice Acting for every different human character New game mechanics Graphic
Version 0.14 is a big update that introduces major features and this will mark the full release of Rat Simulator on Steam. We also added in a General FAQ Page for the game.
Main Updates

Boss Fights
Unique Voice Acting for every different human character
New game mechanics
Graphics settings optimizations

Full Changelog

Added two bosses to the game
Added old legacy camera mode into options
You can now poison dogs
Added one more dog to one of the houses
Updated and retweaked house objectives
Added terrain boundaries to the edges of the map
Added rat traps in the game
Added disinfector mechanics for objectives
Added CCTV mechanics for objectives
Added unique voice acting line for both female and male humans
Increase pestman default chase speed in Normal & Easy difficulty
Add Graphics settings to options
Optimized default graphics settings
Throwing food now lures enemies
Fixed a bug with steam achievement only updating once the game exits
Increased rat throw force slighty
Adjusted fade in / fade out UI animations
Added missing text glyphs for other languages
Added upgrade SFX
Localized some minor UI text objects
Updated bar UIs in the game
Fixed a bug with upgrades double jump not working properly
Added prompt to lower difficulty if dying repeatedly
Fixed an occasional bug where the human AI will have multiple footstep audio playing at the same time
Add an indicator for the current infected house
Fixed localization text sizing issues & localization missing text characters
Original post
27 Jul 2017Developer post
Version 0.14 is now out!
Version 0.14 is a big update that introduces major features and this will mark the full release of Rat Simulator on Steam. We also added in a General FAQ Page for the game. Main Updates Boss Fights Unique Voice Acting for every different human character New game mechanics Graphic
Version 0.14 is a big update that introduces major features and this will mark the full release of Rat Simulator on Steam. We also added in a General FAQ Page for the game.
Main Updates

Boss Fights
Unique Voice Acting for every different human character
New game mechanics
Graphics settings optimizations

Full Changelog

Added two bosses to the game
Added old legacy camera mode into options
You can now poison dogs
Added one more dog to one of the houses
Updated and retweaked house objectives
Added terrain boundaries to the edges of the map
Added rat traps in the game
Added disinfector mechanics for objectives
Added CCTV mechanics for objectives
Added unique voice acting line for both female and male humans
Increase pestman default chase speed in Normal & Easy difficulty
Add Graphics settings to options
Optimized default graphics settings
Throwing food now lures enemies
Fixed a bug with steam achievement only updating once the game exits
Increased rat throw force slighty
Adjusted fade in / fade out UI animations
Added missing text glyphs for other languages
Added upgrade SFX
Localized some minor UI text objects
Updated bar UIs in the game
Fixed a bug with upgrades double jump not working properly
Added prompt to lower difficulty if dying repeatedly
Fixed an occasional bug where the human AI will have multiple footstep audio playing at the same time
Add an indicator for the current infected house
Fixed localization text sizing issues & localization missing text characters
Original post
20 Jul 2017Developer post
Upcoming Version 0.14
Version 0.14 is a big update that introduces major features. It should be ready in the main build in a few weeks time and Rat Simulator will be out of Early access after this version is released. Boss Fights Unique Voice Acting for every different human character New game mechani
Version 0.14 is a big update that introduces major features. It should be ready in the main build in a few weeks time and Rat Simulator will be out of Early access after this version is released.

Boss Fights
Unique Voice Acting for every different human character
New game mechanics
Graphics settings optimizations

To access the beta build
Right click on Rat Simulator in your Steam Client and select Properties. From the Properties window, select Betas and type the beta access code ratsimulatortest to get access to the beta. Next, select the beta branch 'testing - ' and restart steam to play Rat Simulator on the beta build.
Original post
20 Jul 2017Developer post
Upcoming Version 0.14
Version 0.14 is a big update that introduces major features. It should be ready in the main build in a few weeks time and Rat Simulator will be out of Early access after this version is released. Boss Fights Unique Voice Acting for every different human character New game mechani
Version 0.14 is a big update that introduces major features. It should be ready in the main build in a few weeks time and Rat Simulator will be out of Early access after this version is released.

Boss Fights
Unique Voice Acting for every different human character
New game mechanics
Graphics settings optimizations

To access the beta build
Right click on Rat Simulator in your Steam Client and select Properties. From the Properties window, select Betas and type the beta access code ratsimulatortest to get access to the beta. Next, select the beta branch 'testing - ' and restart steam to play Rat Simulator on the beta build.
Original post
05 Jun 2017Developer post
Improved Controls, Achievements & Trading cards - Version 0.13
Main Updates Reworked and Improved Rat Controls Added Female Humans into the game Added Steam Achievements Added Trading Cards Added Dogs as guards in some houses Other Updates You can now poison Pestmans You can now adjust mouse sensitivity under Options Fixed a bug with UI butt
Main Updates

Reworked and Improved Rat Controls
Added Female Humans into the game
Added Steam Achievements
Added Trading Cards
Added Dogs as guards in some houses

Other Updates

You can now poison Pestmans
You can now adjust mouse sensitivity under Options
Fixed a bug with UI buttons audio not scaling with SFX volume
Fixed a bug with humans sometimes walking through open doors
Opening & Closing doors no longer alerts the humans
Fixed a UI bug when standing on plaguespot
Fixed a UI bug where the damage UI effect does not cover the whole screen
You will now lose the game if there are not enough food for you to poison in the house
Added difficulty scaling for plague infection timer
Fixed a bug where the humans's walking animation won't play after transitioning from LookAround animation (scenario is getting fully detected by the human)
Humans now run further away once they detect you
Fixed a rotation bug with the dazed human when you poison them
Added dumpster & trashbin open/close sound effect
Added a new skybox
Fixed a bug where u can squeak while jumping
Original post
05 Jun 2017Developer post
Improved Controls, Achievements & Trading cards - Version 0.13
Main Updates Reworked and Improved Rat Controls Added Female Humans into the game Added Steam Achievements Added Trading Cards Added Dogs as guards in some houses Other Updates You can now poison Pestmans You can now adjust mouse sensitivity under Options Fixed a bug with UI butt
Main Updates

Reworked and Improved Rat Controls
Added Female Humans into the game
Added Steam Achievements
Added Trading Cards
Added Dogs as guards in some houses

Other Updates

You can now poison Pestmans
You can now adjust mouse sensitivity under Options
Fixed a bug with UI buttons audio not scaling with SFX volume
Fixed a bug with humans sometimes walking through open doors
Opening & Closing doors no longer alerts the humans
Fixed a UI bug when standing on plaguespot
Fixed a UI bug where the damage UI effect does not cover the whole screen
You will now lose the game if there are not enough food for you to poison in the house
Added difficulty scaling for plague infection timer
Fixed a bug where the humans's walking animation won't play after transitioning from LookAround animation (scenario is getting fully detected by the human)
Humans now run further away once they detect you
Fixed a rotation bug with the dazed human when you poison them
Added dumpster & trashbin open/close sound effect
Added a new skybox
Fixed a bug where u can squeak while jumping
Original post
19 May 2017Developer post
General Improvements - Version 0.12
Version 0.12's main update is about improving the flow of the tutorial which is the first house you will be infecting in the game. Autosave is now enabled which means you don't have to restart from scratch again should you perish to the pestman. This version is not guaranteed to
Version 0.12's main update is about improving the flow of the tutorial which is the first house you will be infecting in the game. Autosave is now enabled which means you don't have to restart from scratch again should you perish to the pestman. This version is not guaranteed to be compatible with old save files. Changelog

Autosave is now enabled
Adjusted the tutorial house and added poison food mechanics into the tutorial
Added a new Objective OST background music
Original post
19 May 2017Developer post
General Improvements - Version 0.12
Version 0.12's main update is about improving the flow of the tutorial which is the first house you will be infecting in the game. Autosave is now enabled which means you don't have to restart from scratch again should you perish to the pestman. This version is not guaranteed to
Version 0.12's main update is about improving the flow of the tutorial which is the first house you will be infecting in the game. Autosave is now enabled which means you don't have to restart from scratch again should you perish to the pestman. This version is not guaranteed to be compatible with old save files. Changelog

Autosave is now enabled
Adjusted the tutorial house and added poison food mechanics into the tutorial
Added a new Objective OST background music
Original post
09 May 2017Developer post
Bug Fixes - Version 0.11
- Fixed mouse cursor going off the screen - Fixed UI layout issues for non 16:9 aspect ratios on windowed mode.
09 May 2017Developer post
Bug Fixes - Version 0.11
- Fixed mouse cursor going off the screen - Fixed UI layout issues for non 16:9 aspect ratios on windowed mode.

Updates & announcements

Main Updates

Full Changelog

Main Updates

Full Changelog

To access the beta build

To access the beta build

Main Updates

Other Updates

Main Updates

Other Updates